SEC Info - Soluna Holdings, Inc. - ‘10-K’ for 12/31/21

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Soluna Holdings, Inc. – ‘10-K’ for 12/31/21 – ‘XML’

On: Thursday, 3/31/22, at 5:23pm ET · For: 12/31/21 · Accession #: 1753926-22-384 · File #: 1-40261

Previous ‘10-K’: ‘10-K/A’ on 4/29/21 for 12/31/20 · Next: ‘10-K’ on 3/31/23 for 12/31/22 · Latest: ‘10-K’ on 4/1/24 for 12/31/23 · 38 References:

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 3/31/22  Soluna Holdings, Inc.             10-K       12/31/21  113:10M                                    Genesis Filings LLC/FA

Annual Report — Form 10-K

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   1.61M 
 2: EX-4.12     Instrument Defining the Rights of Security Holders  HTML    103K 
 3: EX-4.13     Instrument Defining the Rights of Security Holders  HTML    114K 
 4: EX-10.12    Material Contract                                   HTML     58K 
 5: EX-10.13    Material Contract                                   HTML     47K 
 6: EX-10.14    Material Contract                                   HTML     47K 
 7: EX-10.20    Material Contract                                   HTML     40K 
 8: EX-10.26    Material Contract                                   HTML     67K 
 9: EX-10.52    Material Contract                                   HTML    100K 
10: EX-10.53    Material Contract                                   HTML     47K 
11: EX-10.54    Material Contract                                   HTML     88K 
12: EX-10.55    Material Contract                                   HTML     49K 
13: EX-21       Subsidiaries List                                   HTML     31K 
14: EX-23.1     Consent of Expert or Counsel                        HTML     29K 
15: EX-23.2     Consent of Expert or Counsel                        HTML     30K 
16: EX-31.1     Certification -- §302 - SOA'02                      HTML     35K 
17: EX-31.2     Certification -- §302 - SOA'02                      HTML     35K 
18: EX-32.1     Certification -- §906 - SOA'02                      HTML     31K 
19: EX-32.2     Certification -- §906 - SOA'02                      HTML     31K 
25: R1          Cover                                               HTML     99K 
26: R2          Consolidated Balance Sheets                         HTML    154K 
27: R3          Consolidated Balance Sheets (Parenthetical)         HTML     53K 
28: R4          Consolidated Statements of Operations               HTML    126K 
29: R5          Consolidated Statements of Changes in Equity        HTML     93K 
30: R6          Consolidated Statements of Cash Flows               HTML    131K 
31: R7          Nature of Operations                                HTML     72K 
32: R8          Accounting Policies                                 HTML    154K 
33: R9          Accounts Receivable                                 HTML     40K 
34: R10         Property, Plant and Equipment                       HTML     57K 
35: R11         Asset Acquisition                                   HTML     52K 
36: R12         Intangible Assets                                   HTML     57K 
37: R13         Income Taxes                                        HTML    120K 
38: R14         Accrued Liabilities                                 HTML     45K 
39: R15         Debt                                                HTML     52K 
40: R16         Stockholders? Equity                                HTML     50K 
41: R17         Retirement Plan                                     HTML     38K 
42: R18         Net (loss) income per Share                         HTML     56K 
43: R19         Stock Based Compensation                            HTML    169K 
44: R20         Commitments and Contingencies                       HTML     62K 
45: R21         Related Party Transactions                          HTML     60K 
46: R22         Discontinued Operations-Held for Sale               HTML     63K 
47: R23         Segment Information                                 HTML     65K 
48: R24         Subsequent Events                                   HTML     47K 
49: R25         Accounting Policies (Policies)                      HTML    208K 
50: R26         Accounting Policies (Tables)                        HTML     49K 
51: R27         Accounts Receivable (Tables)                        HTML     39K 
52: R28         Property, Plant and Equipment (Tables)              HTML     54K 
53: R29         Intangible Assets (Tables)                          HTML     56K 
54: R30         Income Taxes (Tables)                               HTML    116K 
55: R31         Accrued Liabilities (Tables)                        HTML     44K 
56: R32         Debt (Tables)                                       HTML     37K 
57: R33         Stockholders? Equity (Tables)                       HTML     37K 
58: R34         Net (loss) income per Share (Tables)                HTML     50K 
59: R35         Stock Based Compensation (Tables)                   HTML    142K 
60: R36         Commitments and Contingencies (Tables)              HTML     63K 
61: R37         Discontinued Operations-Held for Sale (Tables)      HTML     66K 
62: R38         Segment Information (Tables)                        HTML     56K 
63: R39         Nature of Operations (Details Narrative)            HTML    134K 
64: R40         Schedule of Useful Lives (Details)                  HTML     53K 
65: R41         The following table provides quantitative           HTML     36K 
                information regarding the inputs to the fair value               
                measurement of the Warrants as of the valuation                  
                date (Details)                                                   
66: R42         Accounting Policies (Details Narrative)             HTML     86K 
67: R43         Schedule of accounts receivables (Details)          HTML     37K 
68: R44         Schedule of Property, Plant and Equipment           HTML     61K 
                (Details)                                                        
69: R45         Property, Plant and Equipment (Details Narrative)   HTML     33K 
70: R46         Asset Acquisition (Details Narrative)               HTML     46K 
71: R47         Intangible assets consist of the following as of    HTML     44K 
                December 31, 2021 (Details)                                      
72: R48         The Company expects to record amortization expense  HTML     46K 
                of intangible assets over the next five years and                
                thereafter as follows (Details)                                  
73: R49         Intangible Assets (Details Narrative)               HTML     32K 
74: R50         Schedule of income tax expense (Details)            HTML     39K 
75: R51         Schedule of deferred income tax expense (Details)   HTML     37K 
76: R52         Schedule of effective income tax rate (Details)     HTML     51K 
77: R53         Schedule of deferred tax assets (Details)           HTML     60K 
78: R54         Schedule of deferred tax asset valuation allowance  HTML     47K 
                (Details)                                                        
79: R55         Income Taxes (Details Narrative)                    HTML     38K 
80: R56         Schedule of accrued liabilities (Details)           HTML     47K 
81: R57         Debt consists of the following (Details)            HTML     45K 
82: R58         Debt (Details Narrative)                            HTML     58K 
83: R59         Schedule of reserved common shares for future       HTML     41K 
                issuance (Details)                                               
84: R60         Stockholders? Equity (Details Narrative)            HTML     56K 
85: R61         Retirement Plan (Details Narrative)                 HTML     33K 
86: R62         The following table sets forth the reconciliation   HTML     62K 
                of the numerators and denominators of the basic                  
                and diluted per share computations for continuing                
                operations for the years ended December 31                       
                (Details)                                                        
87: R63         Net (loss) income per Share (Details Narrative)     HTML     41K 
88: R64         The following table presents the weighted-average   HTML     55K 
                assumptions used for options granted under the                   
                2021 Plan (Details)                                              
89: R65         Total share-based compensation expense, related to  HTML     37K 
                the Company?s share-based awards, recognized for                 
                the years ended December 31, was comprised as                    
                follows (Details)                                                
90: R66         Presented below is a summary of the Company?s       HTML     65K 
                stock option activity for the Plans for the years                
                ended December 31 (Details)                                      
91: R67         The following table summarizes information for      HTML     59K 
                options outstanding and exercisable for the Plans                
                as of December 31, 2021 (Details)                                
92: R68         Non-vested restricted stock activity is as follows  HTML     43K 
                for the year ended December 31 (Details)                         
93: R69         The weighted average fair value price for the       HTML     41K 
                Company?s restricted stock activity for the Plans                
                is as follows for each of the years ended December               
                31 (Details)                                                     
94: R70         The following is a summary of common stock warrant  HTML     51K 
                activity during the year ended December 31, 2021.                
                The Company did not have or issue any warrants                   
                during the year ended December 31, 2020. (Details)               
95: R71         Stock Based Compensation (Details Narrative)        HTML    110K 
96: R72         Lease expense for these leases is recognized on a   HTML     37K 
                straight-line basis over the lease term. For the                 
                twelve months ended December 31, total lease costs               
                are comprised of the following (Details)                         
97: R73         Supplemental cash flows information related to      HTML     36K 
                leases for the twelve months ended December 31 was               
                as follows (Details)                                             
98: R74         Supplemental balance sheet information for the      HTML     46K 
                twelve months ended December 31 was as follows                   
                (Details)                                                        
99: R75         Maturities of operating lease liabilities are as    HTML     47K 
                follows for the year ending December 31 (Details)                
100: R76         Commitments and Contingencies (Details Narrative)   HTML     37K  
101: R77         Related Party Transactions (Details Narrative)      HTML     79K  
102: R78         Set forth below are the results of the              HTML     45K  
                discontinued operations (Details)                                
103: R79         The following table summarizes information about    HTML     63K  
                assets and liabilities from discontinued                         
                operations held for sale as of December 31, 2021                 
                and 2020 (Details)                                               
104: R80         MTI Instruments sells its products on a worldwide   HTML     40K  
                basis with its principal markets listed in the                   
                table below where information on product revenue                 
                is summarized by geographic area for the Company                 
                as a whole for each of the years ended December 31               
                (Details)                                                        
105: R81         Discontinued Operations-Held for Sale (Details      HTML     33K  
                Narrative)                                                       
106: R82         The following table details revenue and cost of     HTML     93K  
                revenues for the Company?s reportable segments                   
                (Details)                                                        
107: R83         Segment Information (Details Narrative)             HTML     41K  
108: R84         Subsequent Events (Details Narrative)               HTML     59K  
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<us-gaap:ProfitLoss contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 1946000 </us-gaap:ProfitLoss>

<us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue contextRef="From2020-01-012020-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 54000 </us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue>

<us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 54000 </us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue>

<us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised contextRef="From2020-01-012020-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 83000 </us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised>

<us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised contextRef="From2020-01-012020-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 83000 </us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised>

<us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 83000 </us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised>

<us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross contextRef="From2020-01-012020-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 80930 </us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross>

<us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross contextRef="From2020-01-012020-12-31_us-gaap_CommonStockMember" decimals="-3" unitRef="USD"> 1000 </us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross>

<us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross contextRef="From2020-01-012020-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> -1000 </us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross>

<us-gaap:SharesIssued contextRef="AsOf2020-12-31_us-gaap_PreferredStockMember" decimals="INF" unitRef="Shares"> 0 </us-gaap:SharesIssued>

<us-gaap:SharesIssued contextRef="AsOf2020-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 10750100 </us-gaap:SharesIssued>

<us-gaap:StockholdersEquity contextRef="AsOf2020-12-31_us-gaap_CommonStockMember" decimals="-3" unitRef="USD"> 11000 </us-gaap:StockholdersEquity>

<us-gaap:StockholdersEquity contextRef="AsOf2020-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 137462000 </us-gaap:StockholdersEquity>

<us-gaap:StockholdersEquity contextRef="AsOf2020-12-31_us-gaap_RetainedEarningsMember" decimals="-3" unitRef="USD"> -117793000 </us-gaap:StockholdersEquity>

<us-gaap:SharesIssued contextRef="AsOf2020-12-31_us-gaap_TreasuryStockMember" decimals="INF" unitRef="Shares"> 1015493 </us-gaap:SharesIssued>

<us-gaap:StockholdersEquity contextRef="AsOf2020-12-31_us-gaap_TreasuryStockMember" decimals="-3" unitRef="USD"> -13764000 </us-gaap:StockholdersEquity>

<us-gaap:StockholdersEquity contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 5916000 </us-gaap:StockholdersEquity>

<us-gaap:ProfitLoss contextRef="From2021-01-012021-12-31_us-gaap_RetainedEarningsMember" decimals="-3" unitRef="USD"> -5261000 </us-gaap:ProfitLoss>

<us-gaap:ProfitLoss contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> -5261000 </us-gaap:ProfitLoss>

<us-gaap:DividendsPreferredStock contextRef="From2021-01-012021-12-31_us-gaap_RetainedEarningsMember" decimals="-3" unitRef="USD"> 630000 </us-gaap:DividendsPreferredStock>

<us-gaap:DividendsPreferredStock contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 630000 </us-gaap:DividendsPreferredStock>

<us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue contextRef="From2021-01-012021-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 2021000 </us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue>

<us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 2021000 </us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue>

<us-gaap:StockIssuedDuringPeriodSharesNewIssues contextRef="From2021-01-012021-12-31_us-gaap_PreferredStockMember" decimals="INF" unitRef="Shares"> 1252299 </us-gaap:StockIssuedDuringPeriodSharesNewIssues>

<us-gaap:StockIssuedDuringPeriodValueNewIssues contextRef="From2021-01-012021-12-31_us-gaap_PreferredStockMember" decimals="-3" unitRef="USD"> 1000 </us-gaap:StockIssuedDuringPeriodValueNewIssues>

<us-gaap:StockIssuedDuringPeriodValueNewIssues contextRef="From2021-01-012021-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 25056000 </us-gaap:StockIssuedDuringPeriodValueNewIssues>

<us-gaap:StockIssuedDuringPeriodValueNewIssues contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 25057000 </us-gaap:StockIssuedDuringPeriodValueNewIssues>

<us-gaap:StockIssuedDuringPeriodSharesNewIssues contextRef="From2021-01-012021-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 2782258 </us-gaap:StockIssuedDuringPeriodSharesNewIssues>

<mkty:StockIssuedDuringPeriodPrefferedValueNewIssues contextRef="From2021-01-012021-12-31_us-gaap_CommonStockMember" decimals="-3" unitRef="USD"> 3000 </mkty:StockIssuedDuringPeriodPrefferedValueNewIssues>

<mkty:StockIssuedDuringPeriodPrefferedValueNewIssues contextRef="From2021-01-012021-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 15400000 </mkty:StockIssuedDuringPeriodPrefferedValueNewIssues>

<mkty:StockIssuedDuringPeriodPrefferedValueNewIssues contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 15403000 </mkty:StockIssuedDuringPeriodPrefferedValueNewIssues>

<us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised contextRef="From2021-01-012021-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 123400 </us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised>

<us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised contextRef="From2021-01-012021-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 102000 </us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised>

<us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 102000 </us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised>

<us-gaap:StockIssuedDuringPeriodSharesIssuedForServices contextRef="From2021-01-012021-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 581610 </us-gaap:StockIssuedDuringPeriodSharesIssuedForServices>

<us-gaap:StockIssuedDuringPeriodValueIssuedForServices contextRef="From2021-01-012021-12-31_us-gaap_CommonStockMember" decimals="-3" unitRef="USD"> 1000 </us-gaap:StockIssuedDuringPeriodValueIssuedForServices>

<us-gaap:StockIssuedDuringPeriodValueIssuedForServices contextRef="From2021-01-012021-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 4792000 </us-gaap:StockIssuedDuringPeriodValueIssuedForServices>

<us-gaap:StockIssuedDuringPeriodValueIssuedForServices contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 4793000 </us-gaap:StockIssuedDuringPeriodValueIssuedForServices>

<mkty:StockIssuedDuringPeriodSharesNewIssues1 contextRef="From2021-01-012021-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 150000 </mkty:StockIssuedDuringPeriodSharesNewIssues1>

<mkty:StockIssuedDuringPeriodValueNewIssues2 contextRef="From2021-01-012021-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 1377000 </mkty:StockIssuedDuringPeriodValueNewIssues2>

<mkty:StockIssuedDuringPeriodValueNewIssues2 contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 1377000 </mkty:StockIssuedDuringPeriodValueNewIssues2>

<mkty:StockIssuedDuringPeriodSharesNewIssues3 contextRef="From2021-01-012021-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 150000 </mkty:StockIssuedDuringPeriodSharesNewIssues3>

<mkty:StockIssuedDuringPeriodValueNewIssues3 contextRef="From2021-01-012021-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 1917000 </mkty:StockIssuedDuringPeriodValueNewIssues3>

<mkty:StockIssuedDuringPeriodValueNewIssues3 contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 1917000 </mkty:StockIssuedDuringPeriodValueNewIssues3>

<mkty:WarrantsIssuedInRelationToDebtFinancing contextRef="From2021-01-012021-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 7037000 </mkty:WarrantsIssuedInRelationToDebtFinancing>

<mkty:WarrantsIssuedInRelationToDebtFinancing contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 7037000 </mkty:WarrantsIssuedInRelationToDebtFinancing>

<mkty:ShareConsiderationOfAssetAcquisition contextRef="From2021-01-012021-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 33000000 </mkty:ShareConsiderationOfAssetAcquisition>

<mkty:ShareConsiderationOfAssetAcquisition contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 33000000 </mkty:ShareConsiderationOfAssetAcquisition>

<us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross contextRef="From2021-01-012021-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 232331 </us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross>

<us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross contextRef="From2021-01-012021-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 256000 </us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross>

<us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 256000 </us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross>

<us-gaap:SharesIssued contextRef="AsOf2021-12-31_us-gaap_PreferredStockMember" decimals="INF" unitRef="Shares"> 1252299 </us-gaap:SharesIssued>

<us-gaap:StockholdersEquity contextRef="AsOf2021-12-31_us-gaap_PreferredStockMember" decimals="-3" unitRef="USD"> 1000 </us-gaap:StockholdersEquity>

<us-gaap:SharesIssued contextRef="AsOf2021-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 14769699 </us-gaap:SharesIssued>

<us-gaap:StockholdersEquity contextRef="AsOf2021-12-31_us-gaap_CommonStockMember" decimals="-3" unitRef="USD"> 15000 </us-gaap:StockholdersEquity>

<us-gaap:StockholdersEquity contextRef="AsOf2021-12-31_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" unitRef="USD"> 228420000 </us-gaap:StockholdersEquity>

<us-gaap:StockholdersEquity contextRef="AsOf2021-12-31_us-gaap_RetainedEarningsMember" decimals="-3" unitRef="USD"> -123684000 </us-gaap:StockholdersEquity>

<us-gaap:SharesIssued contextRef="AsOf2021-12-31_us-gaap_TreasuryStockMember" decimals="INF" unitRef="Shares"> 1015493 </us-gaap:SharesIssued>

<us-gaap:StockholdersEquity contextRef="AsOf2021-12-31_us-gaap_TreasuryStockMember" decimals="-3" unitRef="USD"> -13764000 </us-gaap:StockholdersEquity>

<us-gaap:StockholdersEquity contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 90988000 </us-gaap:StockholdersEquity>

<us-gaap:IncomeLossFromContinuingOperations contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> -6388000 </us-gaap:IncomeLossFromContinuingOperations>

<us-gaap:IncomeLossFromContinuingOperations contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -1210000 </us-gaap:IncomeLossFromContinuingOperations>

<us-gaap:OtherDepreciationAndAmortization contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 3703000 </us-gaap:OtherDepreciationAndAmortization>

<us-gaap:OtherDepreciationAndAmortization contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 81000 </us-gaap:OtherDepreciationAndAmortization>

<us-gaap:ShareBasedCompensation contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 1941000 </us-gaap:ShareBasedCompensation>

<us-gaap:ShareBasedCompensation contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 40000 </us-gaap:ShareBasedCompensation>

<mkty:ShareBasedCompensationConsultant contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 104000 </mkty:ShareBasedCompensationConsultant>

<us-gaap:IncreaseDecreaseInDeferredIncomeTaxes contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> -41000 </us-gaap:IncreaseDecreaseInDeferredIncomeTaxes>

<us-gaap:IncreaseDecreaseInDeferredIncomeTaxes contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 336000 </us-gaap:IncreaseDecreaseInDeferredIncomeTaxes>

<mkty:OperatingLeaseRightOfUseAssetAmortizationExpense1 contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 169000 </mkty:OperatingLeaseRightOfUseAssetAmortizationExpense1>

<mkty:OperatingLeaseRightOfUseAssetAmortizationExpense1 contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 86000 </mkty:OperatingLeaseRightOfUseAssetAmortizationExpense1>

<us-gaap:AmortizationOfFinancingCostsAndDiscounts contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 1876000 </us-gaap:AmortizationOfFinancingCostsAndDiscounts>

<us-gaap:IncreaseDecreaseInAccountsReceivable contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 471000 </us-gaap:IncreaseDecreaseInAccountsReceivable>

<us-gaap:IncreaseDecreaseInAccountsReceivable contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 26000 </us-gaap:IncreaseDecreaseInAccountsReceivable>

<us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 956000 </us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets>

<us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -3000 </us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets>

<us-gaap:IncreaseDecreaseInOtherNoncurrentAssets contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 812000 </us-gaap:IncreaseDecreaseInOtherNoncurrentAssets>

<us-gaap:IncreaseDecreaseInOtherNoncurrentAssets contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 309000 </us-gaap:IncreaseDecreaseInOtherNoncurrentAssets>

<us-gaap:IncreaseDecreaseInAccountsPayable contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 2765000 </us-gaap:IncreaseDecreaseInAccountsPayable>

<us-gaap:IncreaseDecreaseInAccountsPayable contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 163000 </us-gaap:IncreaseDecreaseInAccountsPayable>

<us-gaap:IncreaseDecreaseInDeferredRevenue contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 316000 </us-gaap:IncreaseDecreaseInDeferredRevenue>

<mkty:IncreaseDecreaseIncomeTaxesAndUncertainTaxPositions contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 2000 </mkty:IncreaseDecreaseIncomeTaxesAndUncertainTaxPositions>

<mkty:IncreaseDecreaseInOperatingLease contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 156000 </mkty:IncreaseDecreaseInOperatingLease>

<mkty:IncreaseDecreaseInOperatingLease contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 82000 </mkty:IncreaseDecreaseInOperatingLease>

<us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 306000 </us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities>

<us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 203000 </us-gaap:IncreaseDecreaseInOtherNoncurrentLiabilities>

<us-gaap:IncreaseDecreaseInAccruedLiabilities contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 2197000 </us-gaap:IncreaseDecreaseInAccruedLiabilities>

<us-gaap:IncreaseDecreaseInAccruedLiabilities contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 171000 </us-gaap:IncreaseDecreaseInAccruedLiabilities>

<us-gaap:NetCashProvidedByUsedInOperatingActivities contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 4635000 </us-gaap:NetCashProvidedByUsedInOperatingActivities>

<us-gaap:NetCashProvidedByUsedInOperatingActivities contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -1214000 </us-gaap:NetCashProvidedByUsedInOperatingActivities>

<us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 917000 </us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations>

<us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 3115000 </us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations>

<us-gaap:PaymentsToAcquirePropertyPlantAndEquipment contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 45792000 </us-gaap:PaymentsToAcquirePropertyPlantAndEquipment>

<us-gaap:PaymentsToAcquirePropertyPlantAndEquipment contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 805000 </us-gaap:PaymentsToAcquirePropertyPlantAndEquipment>

<us-gaap:PaymentsToAcquireIntangibleAssets contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 1567000 </us-gaap:PaymentsToAcquireIntangibleAssets>

<mkty:DepositsOfEquipmentNet contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 9909000 </mkty:DepositsOfEquipmentNet>

<mkty:DepositsOfEquipmentNet contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 279000 </mkty:DepositsOfEquipmentNet>

<us-gaap:PaymentsToAcquireEquityMethodInvestments contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 750000 </us-gaap:PaymentsToAcquireEquityMethodInvestments>

<us-gaap:NetCashProvidedByUsedInInvestingActivities contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> -57268000 </us-gaap:NetCashProvidedByUsedInInvestingActivities>

<us-gaap:NetCashProvidedByUsedInInvestingActivities contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -1834000 </us-gaap:NetCashProvidedByUsedInInvestingActivities>

<us-gaap:CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> -37000 </us-gaap:CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations>

<us-gaap:CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -30000 </us-gaap:CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations>

<us-gaap:ProceedsFromIssuanceOrSaleOfEquity contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 17250000 </us-gaap:ProceedsFromIssuanceOrSaleOfEquity>

<us-gaap:ProceedsFromIssuanceOfPreferredStockAndPreferenceStock contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 27965000 </us-gaap:ProceedsFromIssuanceOfPreferredStockAndPreferenceStock>

<us-gaap:ProceedsFromIssuanceOfMediumTermNotes contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 15000000 </us-gaap:ProceedsFromIssuanceOfMediumTermNotes>

<mkty:CostOfEquityOffering contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 1847000 </mkty:CostOfEquityOffering>

<mkty:CostsOfPreferredOffering contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 2707000 </mkty:CostsOfPreferredOffering>

<mkty:CostsOfNoteIssuance contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 1338000 </mkty:CostsOfNoteIssuance>

<us-gaap:PaymentsOfDividends contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 630000 </us-gaap:PaymentsOfDividends>

<mkty:BorrowingsUnderLineOfCredit contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 1000000 </mkty:BorrowingsUnderLineOfCredit>

<us-gaap:ProceedsFromStockOptionsExercised contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 102000 </us-gaap:ProceedsFromStockOptionsExercised>

<us-gaap:ProceedsFromStockOptionsExercised contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 83000 </us-gaap:ProceedsFromStockOptionsExercised>

<us-gaap:ProceedsFromWarrantExercises contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 4586000 </us-gaap:ProceedsFromWarrantExercises>

<us-gaap:NetCashProvidedByUsedInFinancingActivities contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 59381000 </us-gaap:NetCashProvidedByUsedInFinancingActivities>

<us-gaap:NetCashProvidedByUsedInFinancingActivities contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 83000 </us-gaap:NetCashProvidedByUsedInFinancingActivities>

<us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 6748000 </us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect>

<us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -2965000 </us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect>

<us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 880000 </us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations>

<us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 3085000 </us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations>

<us-gaap:Cash contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 2630000 </us-gaap:Cash>

<us-gaap:Cash contextRef="AsOf2019-12-31" decimals="-3" unitRef="USD"> 2510000 </us-gaap:Cash>

<us-gaap:Cash contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 10258000 </us-gaap:Cash>

<us-gaap:Cash contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 2630000 </us-gaap:Cash>

<mkty:PurchaseOfMinerEquipmentUsingRestrictedStock contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> -207000 </mkty:PurchaseOfMinerEquipmentUsingRestrictedStock>

<mkty:TerminationSharesIssuedInConjunctionWithMergerForIntangibleAssets contextRef="From2021-01-01to2021-12-31" decimals="0" unitRef="USD"> 1917 </mkty:TerminationSharesIssuedInConjunctionWithMergerForIntangibleAssets>

<mkty:S1FeesInAccountsPayable contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> -200000 </mkty:S1FeesInAccountsPayable>

<mkty:WarrantsExercised1 contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 206000 </mkty:WarrantsExercised1>

<mkty:ShareConsiderationInRelationToStrategicPipelineContract contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 33000000 </mkty:ShareConsiderationInRelationToStrategicPipelineContract>

<us-gaap:NatureOfOperations contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in"> 1.</td><td>Nature of Operations</td></tr></table> Description of Business Unless the context requires otherwise in these notes to the consolidated financial statements, the terms “SHI,” the “Company,” “we,” “us,” and “our” refer to Soluna Holdings, Inc. together with its consolidated subsidiaries, “SCI” refers to Soluna Computing, Inc., formerly known as EcoChain, Inc., and “MTI Instruments” refers to MTI Instruments, Inc.. Soluna Holdings, Inc., formerly known as Mechanical Technology, Incorporated was incorporated in Nevada on March 24, 2021, and is the successor to Mechanical Technology, Inc., which was incorporated in the State of New York in 1961, as a result of a merger which became effective on March 29, 2021, and is headquartered in Albany, New York. Effective November 2, 2021, the Company changed its name from “Mechanical Technology, Incorporated” to “Soluna Holdings, Inc.” SHI currently conducts our businesses through our two wholly owned subsidiaries, SCI and MTI Instruments. SCI is presently engaged in the mining of cryptocurrency through data centers that can be powered by renewable energy sources. MTI Instruments is engaged in the design, manufacture, and sale of vibration measurement and system balancing solutions, precision linear displacement sensors, instruments and system solutions, and wafer inspection tools. Recently, SCI has built, and intends to continue to develop and build, modular data centers that are currently used for cryptocurrency mining and that in the future can be used for computing intensive, batchable applications, such as artificial intelligence and machine learning, with the goal of providing a cost-effective alternative to battery storage or transmission lines. Headquartered in Albany, New York, the Company uses technology and intentional design to solve complex, real-world challenges. SCI was incorporated in Delaware on January 8, 2020 as EcoChain, Inc., which has a cryptocurrency mining facility that integrates with the cryptocurrency blockchain network in the State of Washington. Through the October 2021 acquisition by EcoChain, Inc. of an entity at the time named Soluna Computing, Inc., SCI also has a pipeline of certain cryptocurrency mining projects previously owned by Harmattan Energy, Ltd. (“HEL”) (formerly known as Soluna Technologies, Ltd.), a Canadian corporation incorporated under the laws of the Province of British Colombia that develops vertically-integrated, utility-scale computing facilities focused on cryptocurrency mining and cutting-edge blockchain applications. Following such acquisition, on November 15, 2021, SCI completed its conversion and redomicile to Nevada and changed its name from “EcoChain, Inc.” to “Soluna Computing, Inc.” The following day, the acquired entity, Soluna Computing, Inc., changed its name to “Soluna Callisto Holdings Inc.” (“Soluna Callisto”). MTI Instruments was incorporated in New York on March 8, 2000 and is a supplier of vibration measurement and balancing systems, precision linear displacement solutions, and wafer inspection tools. MTI Instruments’ products consist of engine vibration analysis systems for both military and commercial aircraft and electronic gauging instruments for position, displacement and vibration application within the industrial manufacturing markets, as well as in the research, design and process development markets. These systems, tools and solutions are developed for markets and applications that require consistent operation of complex machinery and the precise measurements and control of products, processes, the development and implementation of automated manufacturing and assembly. On December 17, 2021, we announced that we had entered into a non-binding letter of intent with a potential buyer (the “Buyer”) regarding the potential sale of MTI Instruments (the “LOI”) to an unrelated third party. Pursuant to the LOI, the Buyer would acquire 100% of the issued and outstanding common stock of MTI Instruments (the “Sale”). The LOI only represents a mutual indication of interest regarding the Sale and the terms of the Sale are subject to a number of contingencies, including the completion of customary due diligence and the negotiation and execution of definitive agreements. If the Sale is completed, the Company expects that we will exit the instrumentation business and that we will be focused on developing and monetizing green, zero-carbon computing and cryptocurrency mining facilities. As a result of the foregoing, the MTI Instruments business is being held as discontinued operations in our consolidated financial statements as of December 31, 2021 and prior periods and until it is sold, we will continue to operate the MTI Instruments business. On April 29, 2021, the Company closed a public securities offering (the “April Offering”), pursuant to which the Company issued and sold <span id="xdx_907_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pid_c20210428__20210429__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--IPOMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zFDccwmHhkql">2,419,355 shares of the Company’s common stock and warrants to purchase up to <span id="xdx_906_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pii_uShares_c20210428__20210429__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--IPOMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_zhJ3b057X7h1" title="Number of shares issued">604,839 shares of common stock for gross proceeds of approximately $<span id="xdx_909_eus-gaap--ProceedsFromIssuanceInitialPublicOffering_dm_c20210428__20210429__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--IPOMember_zbdat8Bd0932" title="Gross proceeds from initial public offering">15.0 million, less underwriting discounts of 7.0% ($1.05 million) and other offering expenses of $225 thousand, resulting in aggregate net proceeds to the Company of approximately $13.7 million. In addition, on May 27, 2021, the underwriter, exercised its over-allotment option, in full, in connection with the April Offering, pursuant to which the Company issued and sold an additional <span id="xdx_908_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pii_uShares_c20210526__20210527__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--IPOMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zwHxY0LwPF42" title="Number of shares issued">362,903 shares of common stock and warrants to purchase up to an additional <span id="xdx_909_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pii_c20210526__20210527__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--IPOMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_ztAWx51QfNYi" title="Number of shares issued">90,726 shares of common stock, on the same terms as the securities sold in the April Offering, resulting in additional aggregate gross proceeds of approximately $<span id="xdx_904_eus-gaap--ProceedsFromIssuanceInitialPublicOffering_dm_c20210526__20210527__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--IPOMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_z1T5ldksTSnc" title="Gross proceeds from initial public offering">2.25 million, less underwriter discounts of <span id="xdx_904_eus-gaap--UnderwritingExpenseRatio_pii_dp_uPure_c20210526__20210527__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--IPOMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_zI1b1XgE3Zn1" title="Percentage of underwriting discount">7.0% ($157.5 thousand) and other offering expenses of $62.5 thousand, resulting in net proceeds to the Company of $<span id="xdx_906_ecustom--NetProceeds_dmxL_c20210526__20210527__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--IPOMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zVWjvE0Qp3C4" title="Net Proceeds">2.03 million. The Company also incurred additional legal and other filing expenses of $350 thousand, resulting in aggregate net proceeds for the April Offering, including the over-allotment option, of approximately $15.4 million. The warrants have an initial exercise price of $<span id="xdx_908_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pii_uUSDPShares_c20210527__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--OverAllotmentOptionMember__us-gaap--ClassOfWarrantOrRightAxis__custom--WarrantsMember_zvyNqWl2DV1l" title="Class of Warrant or Right, Exercise Price of Warrants or Rights">8.24, subject to certain adjustments, per whole share of common stock and expire <span id="xdx_909_eus-gaap--WarrantsAndRightsOutstandingTerm_iI_dtxL_c20210527__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--OverAllotmentOptionMember__us-gaap--ClassOfWarrantOrRightAxis__custom--WarrantsMember_zhkdbn0l6osd" title="Warrants and Rights Outstanding, Term::XDX::P5Y">five years from their date of issuance. In connection with the April Offering, the Company also issued to the underwriter, as a portion of its compensation, warrants to purchase up to <span id="xdx_90E_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pii_uShares_c20210428__20210429__us-gaap--SubsidiarySaleOfStockAxis__custom--UnderwriterMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_zWpCxpMvK1Sl">139,113 shares of Common Stock, at an initial exercise price of $<span id="xdx_90C_eus-gaap--SaleOfStockPricePerShare_iI_pii_uUSDPShares_c20210429__us-gaap--SubsidiarySaleOfStockAxis__custom--UnderwriterMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_z9ZWooaEfvSk" title="Intial exercise price">6.82 per share, subject to certain adjustments. On May 4, 2021, Soluna MC LLC , formally EcoChain Block, LLC, (“Soluna MC”), a wholly owned subsidiary of SCI, executed a <span id="xdx_90D_eus-gaap--LesseeOperatingLeaseTermOfContract_iI_dtxL_c20210504__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--EcoChainBlockLLCMember_zJMglpzblJw1" title="Lease period::XDX::P25Y">25-year ground lease with a power-providing cooperative with respect to an existing building and certain surrounding land (the “Building Lease”), and a 25-year ground lease with the same landlord with respect to certain vacant land adjacent thereto, both located in the Southeastern United States (the “Vacant Land Lease”, and together with the Building Lease, the “Ground Leases”). In addition, Soluna MC and the landlord entered into a Power Supply Agreement (the “Power Supply Agreement”) whereby the landlord has agreed to supply power to the building leased under the Building Lease (the “Building Lease Premises”) and to the premises leased under the Vacant Land Lease (the “Vacant Land Premises”), some of which power, under certain circumstances, may be terminated by the landlord, on at least 6 months prior notice, any time after 12 months after the Building Commencement Date (as hereafter defined), in which case the landlord is required to reimburse Soluna MC for all of its construction costs, subject to certain exceptions, relating to buildings and other improvements developed by Soluna MC on the Vacant Land Premises. As of December 31, 2021, this lease has not commenced. Soluna MC has agreed to pay rent to the landlord of $500,000 on the effective date of the Building Lease (such date, the “Building Commencement Date”) and the sum of $<span id="xdx_903_eus-gaap--DebtInstrumentPeriodicPayment_pn3n3_c20210101__20211231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--SolunaMember__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--BuildingMember_zypLoZF2Aev8" title="Periodic payment">4,000,000 in periodic payments (the “Vacancy Payments”). The Company executed a guaranty in favor of the landlord with respect to the Vacancy Payments (the “Guaranty of Rent”). The amount of each Vacancy Payment is determined based on the percentage of the building that has been vacated by existing tenants and available for use by Soluna MC. The final Vacancy Payment is due within 60 days after the building has been completely vacated by the existing tenants, which date is contractually scheduled to be no later than March 31, 2022. Soluna MC has the option of making the Vacancy Payments in cash or by the Company’s issuance of common stock in an amount that equals the Vacancy Payment then due based on the prior day’s closing price (any such shares, “Vacancy Payment Shares”). If Soluna MC elects to make any payment in Vacancy Payment Shares, then the landlord has an option to accept such Vacancy Payment Shares or require such shares to be converted to cash as more fully provided in the Building Lease. The Building Lease also includes provisions relating to the issuance of additional shares of the Company’s common stock, which may be applied as an advance against future Vacancy Payments, all as fully provided in the Building Lease. The Company is required to issue to the landlord <span id="xdx_901_eus-gaap--StockIssuedDuringPeriodSharesNewIssues_pii_uShares_c20210502__20210504__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--EcoChainBlockLLCMember_zp1D5e8PhKSb" title="Number of shares issued">100,000 shares of the Company’s common stock, in connection with the Vacant Land Lease, upon the effective date of the Vacant Land Lease, which may not occur prior to the Building Commencement Date. In addition, Soluna MC and the landlord have entered into a memorandum of understanding providing Soluna MC with a six-month exclusivity period to expand the Vacant Land Premises, including obtaining additional power, in connection therewith. Soluna MC and the landlord have not agreed on any of the terms of such expansion other than the exclusivity period previously described. Soluna MC and the landlord have also entered into a transition services agreement (the “Transition Services Agreement”) by which the landlord will provide certain transition services to Soluna MC at a fee to be mutually agreed by the landlord and Soluna MC. The Transition Services Agreement also requires the landlord to pay Soluna MC an amount approximately equal to the landlord’s net profits received from the landlord’s other tenants operating out of the Building Lease Premises. On August 23, 2021, the Company issued and sold pursuant to a firm commitment public offering (the “August Preferred Offering”) 720,000 shares of a new series of the Company’s preferred shares known as the 9.0% Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share, having a $25.00 liquidation preference per share (the “Series A Preferred Stock”), resulting in aggregate gross proceeds of $18.0 million less underwriting discounts of 6.0% ($1.08 million) and other offering fees and expenses of $640 thousand, resulting in aggregate net proceeds to the Company of approximately $16.2 million. In connection with the August Preferred Offering, the Company granted the underwriter a 45-day option and right to purchase up to an additional <span id="xdx_90B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesPurchasedForAward_pid_c20210822__20210823__us-gaap--StatementClassOfStockAxis__us-gaap--SeriesAPreferredStockMember_zNQCnaiQmU56" title="Number of shares">108,000 shares of Series A Preferred Stock (the “Option Shares”), on the same terms as the securities sold in the Offering, including the public offering price of $25.00 per share (the “Over-Allotment Option”). In connection with the August Preferred Offering, the Company’s Series A Preferred Stock was approved for listing on the Nasdaq Capital Market under the symbol “SLNHP” and began trading on August 20, 2021. On September 28, 2021, the Company issued and sold to the underwriter 86,585 Option Shares, pursuant to its partial exercise of the Over-Allotment Option, resulting in additional aggregate gross proceeds of approximately $2.16 million, less applicable underwriter discounts and estimated offering expenses of $140 thousand, resulting in <span id="xdx_903_ecustom--DescriptionOfAggregateProceeds_c20210927__20210928__us-gaap--StatementClassOfStockAxis__us-gaap--SeriesAPreferredStockMember_zQr4fIuRGFqd" title="Description of aggregate proceeds">aggregate net proceeds to the Company of $2.0 million. Dividends on the Series A Preferred Stock will be payable when, as and if declared by the Board of Directors monthly in arrears on the final day of each month or the next business day at an annual rate of 9.0% of the $25.00 liquidation preference per share. On December 28, 2021, the Company issued and sold pursuant to a firm commitment public offering (the “December Preferred Offering”) 445,714 shares of the Series A Preferred Stock for aggregate gross proceeds of approximately $7.8 million less underwriting discounts of 7.0% ($546,000) and other offering fees and expenses of approximately ($500,000), resulting in aggregate net proceeds to the Company of approximately $6.7 million. In connection with the December Preferred Offering,, the Company granted the underwriters a 45-day option to purchase up to an additional 66,587 shares (the “Option Shares”) of the Series A Preferred Stock on the same terms as the shares sold in the December preferred Offering (the “Over-Allotment Option”). . The Over-Allotment Option was exercised by the underwriters in full on January 5, 2022, resulting in additional aggregate gross proceeds of approximately $1.17 million less applicable underwriter discounts and other offering fees and expenses. Liquidity The Company has historically incurred significant losses primarily due to our past efforts to fund direct methanol fuel cell product development and commercialization programs and had a consolidated accumulated deficit of approximately $123.7 million as of December 31, 2021. As of December 31, 2021, the Company had working capital of approximately $9.3 million, a line of credit outstanding of $1.0 million, $7.1 million outstanding note payable that can be converted to common stock, outstanding commitments related to SCI for $<span id="xdx_904_eus-gaap--CapitalExpenditureDiscontinuedOperations_dm_c20210101__20211231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--SolunaMember_zVR1GjlkJr9i" title="Capital expenditure">16.2 million for capital expenditures, approximately $4.6 million in cash provided by operating activities for continuing operations, and approximately $10.3 million of cash available to fund our operations. During the year ended December 31, 2021, the Company paid approximately $45.8 million in capital expenditures and had approximately $10.0 million in deposits for equipment. Subsequent to the year ended December 31, 2021, the Company received additional equipment financing for up to $14.6 million, as well as received financing of approximately $10.0 million from promissory notes. Please refer to Footnote 18 “Subsequent Events”, for further details. The COVID-19 global pandemic has been unprecedented and unpredictable and our impact is likely to continue to result in significant national and global economic disruption, which may adversely affect our business. Although the Company has experienced some minor changes to its miner shipments due to disruptions in the global supply chain, the Company however does not expect any material impact on its long-term strategic plans, our operations, or our liquidity due to the impacts of COVID-19. However, the Company is actively monitoring this situation and the possible effects on our financial condition, liquidity, operations, suppliers, and the industry.

</us-gaap:NatureOfOperations>

<us-gaap:StockIssuedDuringPeriodSharesNewIssues contextRef="From2021-04-282021-04-29_us-gaap_IPOMember_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 2419355 </us-gaap:StockIssuedDuringPeriodSharesNewIssues>

<us-gaap:StockIssuedDuringPeriodSharesNewIssues contextRef="From2021-04-282021-04-29_us-gaap_IPOMember_us-gaap_CommonStockMember_us-gaap_WarrantMember" decimals="INF" unitRef="Shares"> 604839 </us-gaap:StockIssuedDuringPeriodSharesNewIssues>

<us-gaap:ProceedsFromIssuanceInitialPublicOffering contextRef="From2021-04-282021-04-29_us-gaap_IPOMember" decimals="0" unitRef="USD"> 15000000.0 </us-gaap:ProceedsFromIssuanceInitialPublicOffering>

<us-gaap:UnderwritingExpenseRatio contextRef="From2021-04-282021-04-29_us-gaap_IPOMember" decimals="INF" unitRef="Pure"> 0.070 </us-gaap:UnderwritingExpenseRatio>

<us-gaap:PaymentsForUnderwritingExpense contextRef="From2021-04-282021-04-29_us-gaap_IPOMember" decimals="0" unitRef="USD"> 1050000.00 </us-gaap:PaymentsForUnderwritingExpense>

<us-gaap:OtherUnderwritingExpense contextRef="From2021-04-282021-04-29_us-gaap_IPOMember" decimals="-3" unitRef="USD"> 225000 </us-gaap:OtherUnderwritingExpense>

<mkty:NetProceeds contextRef="From2021-04-282021-04-29_us-gaap_IPOMember" decimals="0" unitRef="USD"> 13700000 </mkty:NetProceeds>

<us-gaap:StockIssuedDuringPeriodSharesNewIssues contextRef="From2021-05-262021-05-27_us-gaap_IPOMember_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 362903 </us-gaap:StockIssuedDuringPeriodSharesNewIssues>

<us-gaap:StockIssuedDuringPeriodSharesNewIssues contextRef="From2021-05-262021-05-27_us-gaap_IPOMember_us-gaap_CommonStockMember_us-gaap_WarrantMember" decimals="INF" unitRef="Shares"> 90726 </us-gaap:StockIssuedDuringPeriodSharesNewIssues>

<us-gaap:ProceedsFromIssuanceInitialPublicOffering contextRef="From2021-05-262021-05-27_us-gaap_IPOMember_us-gaap_CommonStockMember_us-gaap_WarrantMember" decimals="0" unitRef="USD"> 2250000 </us-gaap:ProceedsFromIssuanceInitialPublicOffering>

<us-gaap:UnderwritingExpenseRatio contextRef="From2021-05-262021-05-27_us-gaap_IPOMember_us-gaap_CommonStockMember_us-gaap_WarrantMember" decimals="INF" unitRef="Pure"> 0.070 </us-gaap:UnderwritingExpenseRatio>

<mkty:OtherOfferingExpenses1 contextRef="From2021-01-012021-09-30" decimals="-3" unitRef="USD"> 350000 </mkty:OtherOfferingExpenses1>

<mkty:NetProceeds contextRef="From2021-05-262021-05-27_us-gaap_OverAllotmentOptionMember" decimals="0" unitRef="USD"> 15400000 </mkty:NetProceeds>

<us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 contextRef="AsOf2021-05-27_us-gaap_OverAllotmentOptionMember_custom_WarrantsMember" decimals="INF" unitRef="USDPShares"> 8.24 </us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1>

<us-gaap:StockIssuedDuringPeriodSharesNewIssues contextRef="From2021-04-282021-04-29_custom_UnderwriterMember_us-gaap_CommonStockMember_us-gaap_WarrantMember" decimals="INF" unitRef="Shares"> 139113 </us-gaap:StockIssuedDuringPeriodSharesNewIssues>

<us-gaap:SaleOfStockPricePerShare contextRef="AsOf2021-04-29_custom_UnderwriterMember_us-gaap_CommonStockMember_us-gaap_WarrantMember" decimals="INF" unitRef="USDPShares"> 6.82 </us-gaap:SaleOfStockPricePerShare>

<us-gaap:PaymentsForRent contextRef="From2021-01-012021-12-31_custom_SolunaMember" decimals="-3" unitRef="USD"> 500000000 </us-gaap:PaymentsForRent>

<us-gaap:DebtInstrumentPeriodicPayment contextRef="From2021-01-012021-12-31_custom_SolunaMember_us-gaap_BuildingMember" decimals="-3" unitRef="USD"> 4000000000 </us-gaap:DebtInstrumentPeriodicPayment>

<us-gaap:StockIssuedDuringPeriodSharesNewIssues contextRef="From2021-05-022021-05-04_custom_EcoChainBlockLLCMember" decimals="INF" unitRef="Shares"> 100000 </us-gaap:StockIssuedDuringPeriodSharesNewIssues>

<us-gaap:DerivativeFixedInterestRate contextRef="AsOf2021-08-23_custom_SeriesACumulativPreferredStockMember" decimals="INF" unitRef="Pure"> 0.090 </us-gaap:DerivativeFixedInterestRate>

<us-gaap:PreferredStockLiquidationPreference contextRef="AsOf2021-08-23_custom_SeriesACumulativPreferredStockMember" decimals="INF" unitRef="USDPShares"> 25.00 </us-gaap:PreferredStockLiquidationPreference>

<mkty:AggregateGrossProceeds contextRef="From2021-08-222021-08-23_custom_SeriesACumulativPreferredStockMember" decimals="0" unitRef="USD"> 18000000.0 </mkty:AggregateGrossProceeds>

<mkty:UnderwritingDiscounts contextRef="AsOf2021-08-23_custom_SeriesACumulativPreferredStockMember" decimals="INF" unitRef="Pure"> 0.060 </mkty:UnderwritingDiscounts>

<mkty:AggregateNetProceeds contextRef="From2021-08-212021-08-23_us-gaap_SeriesAPreferredStockMember" decimals="0" unitRef="USD"> 16200000 </mkty:AggregateNetProceeds>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesPurchasedForAward contextRef="From2021-08-222021-08-23_us-gaap_SeriesAPreferredStockMember" decimals="INF" unitRef="Shares"> 108000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesPurchasedForAward>

<us-gaap:OptionIndexedToIssuersEquityShares contextRef="From2021-09-272021-09-28_us-gaap_OverAllotmentOptionMember" decimals="INF" unitRef="Shares"> 86585 </us-gaap:OptionIndexedToIssuersEquityShares>

<us-gaap:ProceedsFromRepaymentsOfDebt contextRef="From2021-09-272021-09-28" decimals="0" unitRef="USD"> 2160000 </us-gaap:ProceedsFromRepaymentsOfDebt>

<us-gaap:PaymentsForUnderwritingExpense contextRef="From2021-09-272021-09-28" decimals="-3" unitRef="USD"> 140000 </us-gaap:PaymentsForUnderwritingExpense>

<mkty:DescriptionOfAggregateProceeds contextRef="From2021-09-272021-09-28_us-gaap_SeriesAPreferredStockMember"> aggregate net proceeds to the Company of $2.0 million. Dividends on the Series A Preferred Stock will be payable when, as and if declared by the Board of Directors monthly in arrears on the final day of each month or the next business day at an annual rate of 9.0% of the $25.00 liquidation preference per share </mkty:DescriptionOfAggregateProceeds>

<mkty:DescriptionOfCommitmentPublicOffering contextRef="From2021-12-272021-12-28_us-gaap_IPOMember"> the Company issued and sold pursuant to a firm commitment public offering (the “December Preferred Offering”) 445,714 shares of the Series A Preferred Stock for aggregate gross proceeds of approximately $7.8 million less underwriting discounts of 7.0% ($546,000) and other offering fees and expenses of approximately ($500,000), resulting in aggregate net proceeds to the Company of approximately $6.7 million. In connection with the December Preferred Offering,, the Company granted the underwriters a 45-day option to purchase up to an additional 66,587 shares (the “Option Shares”) of the Series A Preferred Stock on the same terms as the shares sold in the December preferred Offering (the “Over-Allotment Option”). . The Over-Allotment Option was exercised by the underwriters in full on January 5, 2022, resulting in additional aggregate gross proceeds of approximately $1.17 million less applicable underwriter discounts and other offering fees and expenses. </mkty:DescriptionOfCommitmentPublicOffering>

<mkty:WorkingCapital contextRef="AsOf2021-12-31" decimals="0" unitRef="USD"> 9300000 </mkty:WorkingCapital>

<us-gaap:LineOfCreditFacilityAverageOutstandingAmount contextRef="From2021-01-01to2021-12-31" decimals="0" unitRef="USD"> 1000000.0 </us-gaap:LineOfCreditFacilityAverageOutstandingAmount>

<us-gaap:NotesPayable contextRef="AsOf2021-12-31_us-gaap_ConvertibleCommonStockMember" decimals="0" unitRef="USD"> 7100000 </us-gaap:NotesPayable>

<us-gaap:CapitalExpenditureDiscontinuedOperations contextRef="From2021-01-012021-12-31_custom_SolunaMember" decimals="0" unitRef="USD"> 16200000 </us-gaap:CapitalExpenditureDiscontinuedOperations>

<mkty:DescriptionOfCashProvided contextRef="From2021-01-01to2021-12-31"> pproximately $4.6 million in cash provided by operating activities for continuing operations, and approximately $10.3 million of cash available to fund our operations. </mkty:DescriptionOfCashProvided>

<us-gaap:CapitalExpenditureDiscontinuedOperations contextRef="From2021-01-01to2021-12-31" decimals="0" unitRef="USD"> 45800000 </us-gaap:CapitalExpenditureDiscontinuedOperations>

<mkty:DepositsEquipment contextRef="AsOf2021-12-31" decimals="0" unitRef="USD"> 10000000.0 </mkty:DepositsEquipment>

<us-gaap:ContributionOfProperty contextRef="From2021-01-01to2021-12-31" decimals="0" unitRef="USD"> 14600000 </us-gaap:ContributionOfProperty>

<us-gaap:ContributionOfProperty contextRef="From2021-01-012021-12-31_custom_PromissoryNotesMember" decimals="0" unitRef="USD"> 10000000.0 </us-gaap:ContributionOfProperty>

<us-gaap:SignificantAccountingPoliciesTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">2.</td><td>Accounting Policies</td></tr></table> Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, SCI and MTI Instruments. All intercompany balances and transactions are eliminated in consolidation. <p id="xdx_849_eus-gaap--PriorPeriodReclassificationAdjustmentDescription_zckdbhk35462" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Reclassification Certain prior year amounts have been reclassified for consistency with the current year presentation. These reclassifications had no effect on the reported results of operations or net assets. The reclassifications relate to the presentation of discontinued operations. Use of Estimates The consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”), which require management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Inventories The Company notes that Inventory is included in Current assets associated with discontinued operations. Inventories are valued at the lower of cost (first-in, first-out) or net realizable value. The Company periodically reviews inventory quantities on hand and records a provision for excess, slow moving and obsolete inventory based primarily on our estimated forecast of product demand, as well as based on historical usage. The Company also provides estimated inventory allowances for inventory whose carrying value is in excess of net realizable value. Demand and usage for products and materials can fluctuate significantly. A significant decrease in demand for our products could result in a short-term increase in the cost of inventory purchases and an increase of excess inventory quantities on hand. Although the Company makes every effort to assure the accuracy of our forecasts of future product demand, any significant unanticipated changes in demand could have a significant impact on the value of our inventory and our reported operating results. If changes in market conditions result in reductions in the estimated net realizable value of our inventory below our previous estimate, the Company would increase our reserve in the period in which we made such a determination and record a charge to cost of product revenue. <p id="xdx_84C_eus-gaap--PropertyPlantAndEquipmentPolicyTextBlock_zydnZp4Myn99" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Property, Plant, and Equipment Property, plant and equipment are stated at cost and depreciated using the straight-line method over their estimated useful lives as follows: Schedule of Useful Lives <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"> <tr style="vertical-align: top"> <td style="text-align: justify">Leasehold improvements</td> <td style="text-align: justify"><span id="xdx_904_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_zSo2U9NyhSYa" title="Useful live">Lesser of the life of the lease or the useful life of the improvement</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"> </td> <td style="text-align: justify"> </td></tr> <tr style="vertical-align: top"> <td style="text-align: justify">Computers and related software</td> <td style="text-align: justify"><span id="xdx_90F_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--ComputerSoftwareIntangibleAssetMember__srt--RangeAxis__srt--MinimumMember_zf52LRkt1uh3" title="Useful live::XDX::P3Y">3 to <span id="xdx_907_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--ComputerSoftwareIntangibleAssetMember__srt--RangeAxis__srt--MaximumMember_zCdzGVBNUXD4" title="::XDX::P5Y">5 years</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"> </td> <td style="text-align: justify"> </td></tr> <tr style="vertical-align: top"> <td style="text-align: justify">Cryptocurrency miners</td> <td style="text-align: justify"><span id="xdx_908_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--CryptocurrencyMinersMember_z2IcINC1Vlfb" title="::XDX::P3Y">3 years</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"> </td> <td style="text-align: justify"> </td></tr> <tr style="vertical-align: top"> <td style="text-align: justify">Machinery and equipment</td> <td style="text-align: justify"><span id="xdx_900_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--MachineryAndEquipmentMember__srt--RangeAxis__srt--MinimumMember_zPrzaGdF80Sd" title="::XDX::P8Y">8 to <span id="xdx_909_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--MachineryAndEquipmentMember__srt--RangeAxis__srt--MaximumMember_zJjZsLejL8p6" title="::XDX::P15Y">15 years</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"> </td> <td style="text-align: justify"> </td></tr> <tr style="vertical-align: top"> <td style="text-align: justify">Office furniture, equipment and fixtures</td> <td style="text-align: justify"><span id="xdx_902_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureEquipmentAndFixturesMember__srt--RangeAxis__srt--MinimumMember_zR8Cmn6GLXja" title="::XDX::P2Y">2 to <span id="xdx_905_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureEquipmentAndFixturesMember__srt--RangeAxis__srt--MaximumMember_z9qFnyg0VLP" title="::XDX::P10Y">10 years</td></tr> <tr> <td style="vertical-align: top; text-align: justify"> </td> <td style="vertical-align: top; text-align: justify"> </td> </tr> <tr> <td style="vertical-align: top; width: 40%; text-align: justify">Buildings</td> <td style="vertical-align: top; width: 60%; text-align: justify"><span id="xdx_909_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--BuildingsMember__srt--RangeAxis__srt--MinimumMember_zd9NCJNV9Rs1" title="::XDX::P30Y">30-<span id="xdx_907_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--BuildingsMember__srt--RangeAxis__srt--MaximumMember_zhQUNKHTJxnl" title="::XDX::P40Y">40 years</td> </tr> <tr> <td style="vertical-align: top; text-align: justify"> </td> <td style="vertical-align: top; text-align: justify"> </td> </tr> <tr> <td style="vertical-align: top; text-align: justify">Purchased modular buildings</td> <td style="vertical-align: top; text-align: justify"><span id="xdx_907_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--PurchasedModularBuildingsMember__srt--RangeAxis__srt--MinimumMember_zm9H9rFh2q31" title="::XDX::P15Y">15-<span id="xdx_901_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--PurchasedModularBuildingsMember__srt--RangeAxis__srt--MaximumMember_zb94rOWUPCBa" title="::XDX::P20Y">20 years</td> </tr> </table> Significant additions or improvements extending assets’ useful lives are capitalized; normal maintenance and repair costs are expensed as incurred. The costs of fully depreciated assets remaining in use are included in the respective asset and accumulated depreciation accounts. When items are sold or retired, related gains or losses are included in net (loss) income. Intangible assets Intangible assets include the Strategic Pipeline Contract with an estimated useful life of <span id="xdx_90B_eus-gaap--AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_dxL_c20210101__20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--PipelineContractMember_z3ZxlqgR9LW" title="Useful life::XDX::P5Y">5 years, assembled workforce of individuals included as part of the asset acquisition with an estimated useful life of 5 years and patents with an estimated useful life of <span id="xdx_90E_eus-gaap--AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_dxL_c20210101__20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember__srt--RangeAxis__srt--MinimumMember_zLDY7p8Ddee6" title="::XDX::P15Y">15-<span id="xdx_90E_eus-gaap--AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_dxL_c20210101__20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember__srt--RangeAxis__srt--MaximumMember_zTkXokofh0Zd" title="::XDX::P25Y">25 years. The Company amortizes the intangible assets over their estimated useful lives on a straight-line basis. The Company does not recognize internally developed patents as intangible assets, however legal costs associated with defending such patents are capitalized as long-lived assets. Income Taxes The Company is subject to income taxes in the U.S. (federal and state). As part of the process of preparing our consolidated financial statements, the Company calculates income taxes for each of the jurisdictions in which the Company operates. This involves estimating actual current taxes due together with assessing temporary differences resulting from differing treatment for tax and accounting purposes that are recorded as deferred tax assets and liabilities, loss carryforwards and tax credit carryforwards, for which income tax benefits are expected to be realized in future years. A valuation allowance has been established to reduce deferred tax assets, if it is more likely than not that all, or some portion, of such deferred tax assets will not be realized. The effect on deferred taxes of a change in tax rates is recognized in the period that includes the enactment date. Significant management judgment is required in determining the Company’s provision for income taxes, deferred tax assets and liabilities, and any valuation allowance recorded against the Company’s net deferred tax assets. The Company considers all available evidence, both positive and negative, such as historical levels of income and future forecasts of taxable income amongst other items in determining the Company’s valuation allowance. In addition, the Company’s assessment requires the Company to schedule future taxable income in accordance with accounting standards that address income taxes to assess the appropriateness of a valuation allowance, which further requires the exercise of significant management judgment. The Company accounts for taxes in accordance with the asset and liability method of accounting for income taxes. Under this method, the Company must recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate resolution. The impact of the Company’s reassessment of its tax positions for these standards did not have a material impact on its results of operations, financial condition, or liquidity. The Company is currently subject to audit in various jurisdictions, and these jurisdictions may assess additional income tax liabilities against us. Developments in an audit, litigation, or in applicable laws, regulations, administrative practices, principles, and interpretations could have a material effect on the Company’s operating results or cash flows in the period or periods in which such developments occur, as well as for prior and in subsequent periods. Tax laws, regulations, and administrative practices in various jurisdictions may be subject to significant change, with or without notice, due to economic, political, and other conditions, and significant judgment is required in evaluating and estimating the Company’s provision and accruals for these taxes. There are many transactions that occur during the ordinary course of business for which the ultimate tax determination is uncertain. The Company’s effective tax rates could be affected by numerous factors, such as intercompany transactions, earnings being lower than anticipated in jurisdictions where the Company has lower statutory rates and higher than anticipated in jurisdictions where the Company has higher statutory rates, the applicability of special tax regimes, losses incurred in jurisdictions for which the Company is not able to realize the related tax benefit, changes in foreign currency exchange rates, entry into new businesses and geographies, changes to its existing businesses and operations, acquisitions and investments and how they are financed, changes in the Company’s stock price, changes in its deferred tax assets and liabilities and their valuation, and changes in the relevant tax, accounting, and other laws, regulations, administrative practices, principles, and interpretations. Equity Investment – HEL The Company owns approximately <span id="xdx_90D_eus-gaap--EquityMethodInvestmentOwnershipPercentage_iI_pid_dp_uPure_c20211231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--SolunaMember_zMqG6YRjcA2a" title="Equity ownership percentage">1.79% and <span id="xdx_909_eus-gaap--EquityMethodInvestmentOwnershipPercentage_iI_pii_dp_uPure_c20201231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--SolunaMember_zvcUXbw8iI0d" title="Equity ownership percentage">1.86% of HEL’s outstanding stock, calculated on a fully-diluted basis, as of December 31, 2021 and 2020. The equity investment in HEL is carried at the cost of investment and was $750 thousand as of December 31, 2021 and 2020. Equity Investments without Readily Determinable Fair Values Our equity investment in HEL is accounted for under the measurement alternative. Equity securities measured and recorded using the measurement alternative are recorded at cost minus impairment, if any, plus or minus changes resulting from qualifying observable price changes. Adjustments resulting from impairments and observable price changes are recorded in the income statement. There was no impairment of investment recognized in 2021 and 2020. Equity Method Investments The Company’s consolidated net income will include our proportionate share, if any, of the net income or loss of our equity method investee. When the Company records its proportionate share of net income, it increases equity income (loss), net in our consolidated statements of operations and our carrying value in that investment. Conversely, when the Company records its proportionate share of a net loss, it decreases equity income (loss), net in our consolidated statements of operations and our carrying value in that investment. When the Company’s carrying value in an equity method investee company has been reduced to zero, no further losses are recorded in the Company’s financial statements unless the Company guaranteed obligations of the investee company or has committed additional funding. When the investee company subsequently reports income, the Company will not record its share of such income until it equals the amount of its share of losses not previously recognized. As of December 31, 2021, the Company owned approximately <span id="xdx_900_eus-gaap--EquityMethodInvestmentOwnershipPercentage_iI_pii_dp_uPure_c20211231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--MeOHPowerMember_zAP6fxoR7GN3" title="Equity ownership percentage">47.5% of MeOH Power, Inc.’s outstanding common stock, or <span id="xdx_90A_eus-gaap--InvestmentOwnedBalanceShares_iI_pii_uShares_c20211231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--MeOHPowerMember_zXEgJMlpvEKa" title="Investment shares owned">75,049,937 shares. The number of shares of MeOH Power, Inc.’s common stock authorized for issuance is <span id="xdx_907_eus-gaap--CommonStockSharesOutstanding_iI_pii_uShares_c20211231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--MeOHPowerMember_zDqd1HZsE5q7" title="Common Stock, shares outstanding">240,000,000 as of December 31, 2021. The Company records its investment in MeOH Power, Inc. using the equity method of accounting. The fair value of the Company’s interest in MeOH Power, Inc. has been determined to be $0 as of December 31, 2021 and December 31, 2020, based on MeOH Power, Inc.’s net position and expected cash flows. <p id="xdx_845_eus-gaap--FairValueMeasurementPolicyPolicyTextBlock_z5vBvsHVOlzc" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Fair Value Measurement The estimated fair value of certain financial instruments, including cash, accounts receivable and short-term debt approximates their carrying value due to their short maturities and varying interest rates. “Fair value” is the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. The Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. Based on the observability of the inputs used in the valuation methods, the Company is required to provide the following information according to the fair value accounting standards. These standards established a fair value hierarchy as specified that ranks the quality and reliability of the information used to determine fair values. Financial assets and liabilities are classified and disclosed in one of the following three categories: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; width: 100%"><tr style="vertical-align: top; text-align: justify"> <td style="width: 0in"/><td style="width: 10%; text-align: left">Level 1:</td><td style="text-align: justify; width: 90%">Quoted market prices in active markets for identical assets or liabilities, which includes listed equities.</td> </tr></table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; width: 100%"> <tr style="vertical-align: top; text-align: justify"> <td style="width: 0in"> </td><td style="text-align: left; width: 10%">Level 2:</td><td style="text-align: justify; width: 90%">Observable market-based inputs or unobservable inputs that are corroborated by market data. These items are typically priced using models or other valuation techniques. These models are primarily financial industry-standard models that consider various assumptions, including the time value of money, yield curves, volatility factors, as well as other relevant economic measures.</td></tr> </table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; width: 100%"> <tr style="vertical-align: top; text-align: justify"> <td style="width: 0in"> </td><td style="text-align: left; width: 10%">Level 3:</td><td style="text-align: justify; width: 90%">These use unobservable inputs that are not corroborated by market data. These values are generally estimated based upon methodologies utilizing significant inputs that are generally less observable from objective sources.</td></tr> </table> The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Assets and liabilities measured at fair value are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. On October 25, 2021, pursuant to a securities purchase agreement dated October 20, 2021 (the “SPA), the Company issued to certain accredited investors Class A, Class B and Class C common stock purchase warrants (collectively, the “Warrants”) to purchase up to an aggregate of 1,776,073 shares of common stock (the “Warrant Shares”), at an exercise price $<span id="xdx_90B_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20211025__us-gaap--StatementClassOfStockAxis__us-gaap--CommonClassAMember_zceaAz7z3m8g" title="Warranty liability">12.50, $15 and $18 per share, respectively. The Warrants are considered freestanding equity-classified instruments due to their detachable and separately exercisable features and meet the indexation criteria within derivative accounting. Accordingly, the Warrants are presented as a component of Stockholders’ Equity in accordance with derivative accounting. The fair value of the Warrants was determined to be $<span id="xdx_90D_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20211231__us-gaap--StatementClassOfStockAxis__custom--ClassAWarrantMember_zVw6GwuZUbEd" title="Warranty liability">8.29 per Class A Warrant, $<span id="xdx_907_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20211231__us-gaap--StatementClassOfStockAxis__custom--ClassBWarrantMember_z3fiCj8KChO3" title="Warranty liability">8.10 per Class B warrant, and $<span id="xdx_907_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20211231__us-gaap--StatementClassOfStockAxis__custom--ClassCWarrantMember_zBh9neGrDFyc" title="Warranty liability">7.95 per Class C warrant as of the valuation date, using Monte Carlo simulations and certain Level 3 inputs. Inherent in a Monte Carlo simulation are assumptions related to expected stock-price volatility, expected life, risk-free interest rate and dividend yield. The Company estimates the volatility of its common stock warrants based on implied volatility from its traded warrants and historical volatility of select peers’ common stock with a similar expected term of the Warrants. The risk-free interest rate is based on the U.S. Treasury zero-coupon yield on the grant date with a maturity similar to the expected remaining term of the warrants. The expected term of the Warrants is assumed to be equivalent to their remaining contractual term. The dividend rate is based on the historical rate, which the Company expects to remain at zero. <p id="xdx_89B_eus-gaap--FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_z5G2pAjvdGBl" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify; background-color: white">The following table provides quantitative information regarding the inputs to the fair value measurement of the Warrants as of the valuation date: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="border-bottom: Black 1pt solid; font-weight: bold">Input</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 85%; text-align: left">Risk-free interest rate</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">1.19</td><td style="width: 1%; text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Expected term (years)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5.00</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Expected volatility</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate_pid_dp_uPure_c20210101__20211231_zz664hlMzvm6" title="Expected volatility">150.00</td><td style="text-align: left">%</td></tr> </table> Consistent with the guidance in purchase accounting, the value of the pipeline of certain cryptocurrency mining projects previously owned by HEL acquired in the Soluna Callisto acquisition in October 2021 as of the acquisition date was estimated using an expected value approach, which probability-weights various future outcomes and uses certain Level 3 inputs. Including in those inputs are the following key assumptions: expected growth in share price at a risk-free rate in the risk-neutral framework based on U.S. Treasury Rates as of the valuation date, volatility of share price based on historical equity volatilities of comparable companies over a lookback period, and assessment associated with qualified projects based on assessment on timing of payments and assessment of active megawatt scenarios and the associated probabilities. The resulting amounts are then discounted to present value through use of a discount rate that considers, among other things, the risk of the payments, credit risk of the Company, and overall weighted average cost of capital of the acquired business. The resulting calculations resulted in an estimated fair value of the acquired assets and consideration paid in common stock of approximately $33 million, which was included as part of the consideration paid in the Soluna Callisto acquisition. As noted in Note 5, Accounting Standards Codification (“ASC”) 805-50 provides that assets acquired in an asset acquisition are measured based on the costs of the acquisition, which is the consideration that the acquirer transfers to the seller, and includes direct transaction costs related to the acquisition in which costs were an additional $3.5 million including as part of the acquired assets. <p id="xdx_84D_eus-gaap--RevenueRecognitionPolicyTextBlock_z7k1dKOIGC0e" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Revenue Recognition Cryptocurrency Mining Revenue The Company recognizes revenue under ASC 606, Revenue from Contracts with Customers. The core principles of the revenue standard is that a company should recognize revenue to depict the transfer of promised good or services to customers in an amount that reflects the consideration to which the company expects to be entitled for those goods or services. The following five steps are applied to achieve that core principle: ● Step 1: Identify the contract with the customer ● Step 2: Identify the performance obligations in the contract ● Step 3: Determine the transaction price ● Step 4: Allocate the transaction price to the performance obligations in the contract ● Step 5: Recognize revenue when the Company satisfies a performance obligation In order to identify the performance obligations in a contract with a customer, a company must assess the promised goods or services in the contract and identify each promised good or service that is distinct. A performance obligation meets ASC 606’s definition of a “distinct” good or service (or bundle of goods or services) if both of the following criteria are met: The customer can benefit from the good or service either on its own or together with other resources that are readily available to the customer (i.e., the good or service is capable of being distinct), and the entity’s promise to transfer the good or service to the customer is separately identifiable from other promises in the contract (i.e., the promise to transfer the good or service is distinct within the context of the contract). If a good or service is not distinct, the good or service is combined with other promised goods or services until a bundle of goods or services is identified that is distinct. The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer. The consideration promised in a contract with a customer may include fixed amounts, variable amounts, or both. When determining the transaction price, an entity must consider the effects of all of the following: ● Variable consideration ● Constraining estimates of variable consideration ● The existence of a significant financing component in the contract ● Noncash consideration ● Consideration payable to a customer Variable consideration is included in the transaction price only to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. The transaction price is allocated to each performance obligation on a relative standalone selling price basis. The transaction price allocated to each performance obligation is recognized when that performance obligation is satisfied, at a point in time or over time as appropriate. Providing computing power to solve complex cryptographic algorithms in support of the Bitcoin blockchain (in a process known as “solving a block”) is an output of the Company’s ordinary activities. The provision of providing such computing power is the only performance obligation in the Company’s contracts with mining pool operators. The transaction consideration the Company receives, if any, is noncash consideration, which the Company measures at fair value on the date received, which is not materially different than the fair value at contract inception or the time the Company has earned the award from the pools. The consideration is all variable. Because it is not probable that a significant reversal of cumulative revenue will not occur, the consideration is constrained until the mining pool operator successfully places a block (by being the first to solve an algorithm) and the Company receives confirmation of the consideration it will receive, at which time revenue is recognized. There is no significant financing component in these transactions. Fair value of the cryptocurrency award received is determined using the quoted price of the related cryptocurrency where the Company is registered at the time of receipt. The mined cryptocurrency is immediately paid to the Coinbase wallet. Cryptocurrency is converted to U.S. dollars daily, as SCI is not in the business of accumulating cryptocurrency on its balance sheet. Data center hosting The Company has entered into customer hosting contracts whereby the Company provides electrical power and network connectivity to cryptocurrency mining customers, and the customers pay a stated amount per megawatt-hour (“MWh”) (“Contract Capacity”), a fixed rate, as well as a share of the coins mined. The fee is paid monthly in advance. The actual monthly amounts are calculated after the close of each month and reconciled to the monthly advance based on the clauses contained in the respective contracts. If any shortfalls due to outages are experienced, service level credits may be made to customers to offset outages which prevented them from cryptocurrency mining. Monthly advanced payments and customer deposits are reflected as other liabilities. Customer contract security deposits are made at the time the contract is signed and held until the conclusion of the contract relationship. Deferred revenue is primarily from advance monthly payments received and revenue is recognized when service is completed. Product Revenue The Company notes that product revenue is included within Net income from discontinued operations for the year ended December 31, 2021 and 2020. Product revenue consists of revenue recognized from MTI Instruments’ product lines. In general, the Company determines revenue recognition by: (1) identifying the contract, or contracts, with the customer; (2) identifying the performance obligations in the contract; (3) determining the contract price; (4) allocating the transaction price to performance obligations in the contract; and (5) recognizing revenue when, or as, the performance obligations are satisfied by transferring the promised goods or services. Based on past experience, the Company reasonably estimates its returns and warranty reserves. Revenue is presented net of discounts and allowances, which are determined when the sale is negotiated. The nature of the Company’s contracts do not give rise to variable consideration. The Company enters into contracts that can include various combinations of products and services, which are generally capable of being distinct and accounted for as separate performance obligations. If the product requires that the Company provide installation, all revenue related to the product is deferred and recognized upon the completion of the installation. If the product requires specific customer acceptance criteria, such as on-site customer acceptance and/or acceptance after install, then revenue is deferred until customer acceptance occurs or the acceptance provisions lapse, unless the Company can objectively and reliably demonstrate that the criteria specified in the acceptance provisions is satisfied. The Company may also record unearned revenues, which include payments for other offerings for which we have been paid in advance. The resulting revenue would be earned when we transfer control of the product or service. As of December 31, 2021 and December 31, 2020 the Company had no deferred or unearned revenue. MTI Instruments currently has distributor agreements in place for the international sale of general instrument and semiconductor products in certain global regions. Such agreements grant a distributor the right of first refusal to act as distributor for such products in the distributor’s territory. In return, the distributor agrees to not market other products which are considered by MTI Instruments to be in direct competition with MTI Instruments’ products. The distributor is allowed to purchase MTI Instruments’ equipment at a price which is discounted off the published domestic/international list prices. Such list prices can be adjusted by MTI Instruments during the term of the distributor agreement. Generally, payment terms with the distributor are standard net 30 days; however, on occasion, extended payment terms have been granted. Title and risk of loss of the product passes to the distributor upon delivery to the independent carrier (standard “free-on-board” factory), and the distributor is responsible for any required training and/or service with the end-user. The sale (and subsequent payment) between MTI Instruments and the distributor is not contingent upon the successful resale of the product by the distributor. Distributor sales are covered by MTI Instruments’ standard one-year warranty and there are no special return policies for distributors. The transaction price is determined based on the consideration to which the Company will be entitled in exchange for transferring services to the customer. If the contract contains a single performance obligation, the entire transaction price is allocated to the single performance obligation. Contracts that contain multiple performance obligations require an allocation of the transaction price to each performance obligation based on a relative standalone selling price basis unless the transaction price is variable and meets the criteria to be allocated entirely to a performance obligation or to a distinct good or service that forms part of a single performance obligation. The Company determines standalone selling price based on the price at which the performance obligation is sold separately. If the standalone selling price is not observable through past transactions, the Company estimates the standalone selling price taking into account available information such as market conditions and internally approved pricing guidelines related to the performance obligations. Shipping and handling charges billed to customers is a pass-through from the freight forwarder and is included in product revenue. Cost of Cryptocurrency Mining and Data Center Hosting Revenue Cost of cryptocurrency mining and data center hosting revenue includes direct utility costs as well as overhead costs that relate to the operations of SCI’s cryptocurrency mining facility. Cost of Product Revenue Cost of product revenue includes material, labor, overhead and shipping and handling costs. <p id="xdx_849_eus-gaap--ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy_zD1jJRKmcLCk" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Accounts Receivable and Allowance for Doubtful Accounts Trade accounts receivable are stated at the invoiced amount billed to customers and do not bear interest. An allowance for doubtful accounts, if necessary, represents the Company’s best estimate of the amount of probable credit losses in its existing accounts receivable. The Company determines the allowance based on historical write-off experience and current exposures identified. The Company reviews its allowance for doubtful accounts monthly. Past due balances over 90 days and over a specified amount are reviewed individually for collectability. All other balances are reviewed on a pooled basis by type of receivable. Account balances are charged off against the allowance when the Company believes it is probable the receivable will not be recovered. The Company does not have any off-balance-sheet credit exposure related to its customers. The Company’s allowance for doubtful accounts was $0 at both December 31, 2021 and December 31, 2020. Payment terms and conditions vary by contract type, although terms generally include a requirement of payment within 20 days. In instances where the timing of revenue recognition differs from the timing of invoicing, we have determined our contracts generally do not include a significant financing component. The primary purpose of the Company’s invoicing terms is to provide customers with simplified and predictable ways of purchasing our products and services, not to receive financing from its customers. The Company recognizes an asset for the incremental costs of obtaining a contract with a customer, if the Company expects the benefit of those costs to be longer than one year. As of December 31, 2021 and December 31, 2020, the Company has recorded no capitalized costs to obtain a contract. <p id="xdx_84E_ecustom--DepositeOnEquipmentsPolicy_zC7nLZO3N9v9" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify; text-indent: 0in">Deposits on Equipment As of December 31, 2021 and 2020, the Company had approximately $10.2 million and $279 thousand in deposits on equipment, which consisted mainly of miners, that had not yet been received by the Company as of the year end. within current assets as they expect to receive within three months. Once the Company receives such miners and other equipment in the subsequent period, the Company will reclassify such balance into Property, Plant, and Equipment. Warranty The Company notes that warranty liability is included in current liabilities associated with discontinued operations for the year ended December 31, 2021 and 2020. The Company accrues a warranty liability at the time product revenue is recorded based on historical experience. The liability is reviewed during the year and is adjusted, if appropriate, to reflect new product offerings or changes in experience. Actual warranty claims are tracked by product line. Warranty liability was $18 thousand and $22 thousand as of December 31, 2021 and 2020, respectively. Warranty expense was $3 thousand and $11 thousand for 2021 and 2020, respectively, in which was included in Net income from discontinued operations. <p id="xdx_840_eus-gaap--ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_zf9wEMOnaG1b" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Long-Lived Assets The Company accounts for impairment or disposal of long-lived assets in accordance with accounting standards that address the financial accounting and reporting for the impairment or disposal of long-lived assets, specify how impairment will be measured, and how impaired assets will be classified in the consolidated financial statements. On a quarterly basis, the Company analyzes the status of its long-lived assets at each subsidiary for potential impairment. As of December 31, 2021, the Company does not believe that any of its long-lived assets have suffered any type of impairment that would require an adjustment to that asset’s recorded value. <p id="xdx_842_eus-gaap--CashAndCashEquivalentsPolicyTextBlock_zSxHmVyBYKz3" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Cash and Cash Equivalents Cash and cash equivalents consist of cash and highly liquid short-term investments with original maturities of less than three months. <p id="xdx_844_eus-gaap--EarningsPerSharePolicyTextBlock_zugCxVFLX0y3" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Net Income (Loss) per Share The Company computes basic income (loss) per common share by dividing net income by the weighted average number of common shares outstanding during the reporting period. Diluted income (loss) per share reflects the potential dilution, if any, computed by dividing income (loss) by the combination of dilutive common share equivalents, comprised of shares issuable under outstanding investment rights, warrants and the Company’s share-based compensation plans, and the weighted average number of common shares outstanding during the reporting period. Dilutive common share equivalents include the dilutive effect of in-the-money stock options, which are calculated based on the average share price for each period using the treasury stock method. Under the treasury stock method, the exercise price of a stock option and the amount of compensation cost, if any, for future service that the Company has not yet recognized are assumed to be used to repurchase shares in the current period. <p id="xdx_848_eus-gaap--CompensationRelatedCostsPolicyTextBlock_zzb684vUirte" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Share-Based Payments The Company grants options to purchase our common stock and awards restricted stock to our employees and directors under our equity incentive plans. The benefits provided under these plans are share-based payments and the Company accounts for stock-based awards exchanged for employee service in accordance with the appropriate share-based payment accounting guidance. Stock-based compensation represents the cost related to stock-based awards granted to employees and directors. The Company measures stock-based compensation cost at grant date based on the estimated fair value of the award and recognizes the cost as expense on a straight-line basis in accordance with the vesting of the options (net of estimated forfeitures) over the employee’s requisite service period. The Company estimates the fair value of stock-based awards on the grant date using a Black- Scholes valuation model. The Company uses the fair value method of accounting, which provides for certain changes to the method for valuing share-based compensation. The valuation provisions apply to new awards and to awards that are outstanding on the effective date and subsequently modified. Under the modified prospective application, prior periods are not revised for comparative purposes. Stock-based compensation expense is recorded in the lines titled “Cost of revenue,” and “Selling, general and administrative expenses” in the Consolidated Statements of Operations based on the employees’ respective functions. The Company records deferred tax assets for awards that potentially can result in deductions on the Company’s income tax returns based on the amount of expense that is recognized and the Company’s statutory tax rate. All income tax effects of awards, including excess tax benefits, recognized on stock-based compensation expense are reflected in the Consolidated Statements of Operations as a component of the provision for income taxes on a prospective basis. The determination of the fair value of share-based payment awards on the date of grant using an option-pricing model is affected by the Company’s stock price as well as assumptions regarding a number of complex and subjective variables. These variables include the Company’s expected stock price volatility over the term of the awards, actual and projected employee stock option exercise behaviors, risk-free interest rate, and expected dividends. Theoretical valuation models and market-based methods are evolving and may result in lower or higher fair value estimates for share-based compensation. The timing, readiness, adoption, general acceptance, reliability, and testing of these methods is uncertain. Sophisticated mathematical models may require voluminous historical information, modeling expertise, financial analyses, correlation analyses, integrated software and databases, consulting fees, customization, and testing for adequacy of internal controls. For purposes of estimating the fair value of stock options granted using the Black-Scholes model, the Company uses the historical volatility of its stock for the expected volatility assumption input to the Black-Scholes model, consistent with the accounting guidance. The risk-free interest rate is based on the risk-free zero-coupon rate for a period consistent with the expected option term at the time of grant. The expected option term is calculated based on our historical forfeitures and cancellation rates. The fair value of restricted stock awards is based on the market close price per share on the grant date. The Company expenses the compensation cost of these awards as the restriction period lapses, which is typically a one- to three-year service period to the Company. The shares represented by restricted stock awards are outstanding at the grant date, and the recipients are entitled to voting rights with respect to such shares upon issuance. Notes payable The Company records notes payable net of any discount or premiums. Discounts and premiums are amortized as interest expense or income over the life of the note in such a way as to result in a constant rate of interest when applied to the amount outstanding at the beginning of any given period. Concentration of Credit Risk Financial instruments that subject the Company to concentrations of credit risk principally consist of cash equivalents and trade accounts receivable. The Company’s trade accounts receivable are from data hosting revenue with the Company’s two customers. The Company does not require collateral and has not historically experienced significant credit losses related to receivables from individual customers or groups of customers in any particular industry or geographic area. From time to time, the Company’s cash account balances exceed the balances as covered by the Federal Deposit Insurance System. The Company has never suffered a loss due to such excess balances. <p id="xdx_848_eus-gaap--ResearchAndDevelopmentExpensePolicy_zNExiWt16R3d" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Research and Development Costs Research and development costs entirely related to the MTI Instruments business and as such was included within Net income from discontinued operations. The Company expenses research and development costs as incurred. The Company incurred research and development costs of approximately $1.5 million and $1.5 million for the years ended December 31, 2021 and 2020, respectively. <p id="xdx_84B_eus-gaap--AdvertisingCostsPolicyTextBlock_zBgTV0w4YiQk" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Advertising Costs Advertising costs entirely related to the MTI Instruments business and as such was included within Net income from discontinued operations . The Company expenses advertising costs as incurred. The Company incurred advertising costs of approximately $66 thousand and $39 thousand, for the years ended December 31, 2021 and 2020, respectively. <p id="xdx_848_eus-gaap--ComprehensiveIncomePolicyPolicyTextBlock_zXY44x5pqfi8" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Other Comprehensive Income The Company had no other comprehensive income items for the years ended December 31, 2021 and 2020. Leases The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liability on our consolidated balance sheets. The Company did not have any finance leases as of December 31, 2021 or December 31, 2020. Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of the Company’s leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of future payments. The Company’s lease terms may include options to extend or terminate its leases when it is reasonably certain that the Company will exercise those options. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. The Company has lease agreements with lease and non-lease components, which are generally accounted for separately. For real estate leases, the Company accounts for lease components together with non-lease components (e.g. common-area maintenance). <p id="xdx_841_ecustom--AccountingUpdatesNotYetEffectivePolicyTextBlock_zuHXj9vFqFY9" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Accounting Updates Not Yet Effective Changes to U.S. GAAP are established by the Financial Accounting Standards Board (“FASB”) in the form of accounting standard updates (“ASUs”) to the FASB’s Accounting Standards Codification (ASC). The Company considered the applicability and impact of all ASUs. ASUs not mentioned below were assessed and determined to be either not applicable or are expected to have minimal impact on our consolidated financial position or results of operations. In June 2016, the FASB issued ASU 2016-13 (Financial Instruments - Credit Losses (Topic 326)) and its subsequent amendments to the initial guidance within ASU 2018-19, ASU 2019-04, ASU 2019-05, ASU 2019-10, ASU 2019-11 and ASU 2020-02, respectively (collectively, Topic 326). Topic 326 changes how entities will measure credit losses for most financial assets and certain other instruments that are not accounted for at fair value through net income. This standard replaces the existing incurred credit loss model and establishes a single credit loss framework based on a current expected credit loss model for financial assets carried at amortized cost, including loans and held-to- maturity debt securities. The current expected loss model requires an entity to estimate credit losses expected over the life of the credit exposure upon initial recognition of that exposure when the financial asset is originated or acquired, which will generally result in earlier recognition of credit losses. This standard also requires expanded credit quality disclosures. For available-for-sale debt securities, entities will be required to record allowances rather than reduce the carrying amount, as they do today under the other-than-temporary impairment model. This standard also simplifies the accounting model for purchased credit-impaired debt securities and loans. This standard will affect loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. ASU 2018-19 clarifies that receivables arising from operating leases are accounted for using lease guidance and not as financial instruments. ASU 2019-04 clarifies that equity instruments without readily determinable fair values for which an entity has elected the measurement alternative should be remeasured to fair value as of the date that an observable transaction occurred. ASU 2019-05 provides an option to irrevocably elect to measure certain individual financial assets at fair value instead of amortized cost. This standard should be applied on either a prospective transition or modified-retrospective approach depending on the subtopic. This standard will be effective for the Company for annual and interim reporting periods beginning on or after December 15, 2022, and while early adoption is permitted, the Company does not expect to elect that option. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements, including assessing and evaluating assumptions and models to estimate losses. Upon adoption of this standard on January 1, 2023, the Company will be required to record a cumulative effect adjustment to retained earnings for the impact as of the date of adoption. The impact will depend on the Company’s portfolio composition and credit quality at the date of adoption, as well as forecasts at that time. Accounting Updates Recently Adopted by the Company On January 1, 2021, the Company adopted ASU 2019-12 (Income Taxes (Topic 740) – Simplifying the Accounting for Income Taxes). This standard removes exceptions to the general principles in Topic 740 for allocating tax expense between financial statement components, accounting basis differences stemming from an ownership change in foreign investments and interim period income tax accounting for year-to-date losses that exceed projected losses. The adoption of this standard did not have a material impact on the Company’s consolidated financial statements. On January 1, 2021, the Company adopted ASU 2020-01 (Investments - Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815)). This standard clarifies certain interactions between the guidance to account for certain equity securities under Topic 321, the guidance to account for investments under the equity method of accounting in Topic 323, and the guidance in Topic 815, which could change how an entity accounts for an equity security under the measurement alternative or a forward contract or purchased option to purchase securities that, upon settlement of the forward contract or exercise of the purchased option, would be accounted for under the equity method of accounting or the fair value option in accordance with Topic 825, Financial Instruments. This standard improves current GAAP by reducing diversity in practice and increasing comparability of the accounting for these interactions. The adoption of this standard did not have a material impact on the Company’s consolidated financial statements. On January 1, 2021, the Company early adopted ASU 2020-06 (Debt-Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging- Contracts in Entity’s Own Equity (Subtopic 815-40). ASU 2020-06 simplifies the guidance in Accounting Standards Codification (ASC) 470-20, Debt - Debt with Conversion and Other Options. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion and beneficial conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. ASU 2020-06 also requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share. The Company has early adopted this standard for the year ended December 31, 2021. The early adoption of this standard eliminated calculating a beneficial conversion feature in relation to the SPA agreements that were entered into on October 25, 2021. Refer to Note 9 for more details. There have been no other significant changes in the Company’s reported financial position or results of operations and cash flows as a result of its adoption of new accounting pronouncements or changes to its significant accounting policies that were disclosed in its consolidated financial statements for the fiscal year ended December 31, 2021.

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Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, SCI and MTI Instruments. All intercompany balances and transactions are eliminated in consolidation.

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<us-gaap:PriorPeriodReclassificationAdjustmentDescription contextRef="From2021-01-01to2021-12-31">

<p id="xdx_849_eus-gaap--PriorPeriodReclassificationAdjustmentDescription_zckdbhk35462" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Reclassification Certain prior year amounts have been reclassified for consistency with the current year presentation. These reclassifications had no effect on the reported results of operations or net assets. The reclassifications relate to the presentation of discontinued operations.

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Use of Estimates The consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”), which require management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

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Inventories The Company notes that Inventory is included in Current assets associated with discontinued operations. Inventories are valued at the lower of cost (first-in, first-out) or net realizable value. The Company periodically reviews inventory quantities on hand and records a provision for excess, slow moving and obsolete inventory based primarily on our estimated forecast of product demand, as well as based on historical usage. The Company also provides estimated inventory allowances for inventory whose carrying value is in excess of net realizable value. Demand and usage for products and materials can fluctuate significantly. A significant decrease in demand for our products could result in a short-term increase in the cost of inventory purchases and an increase of excess inventory quantities on hand. Although the Company makes every effort to assure the accuracy of our forecasts of future product demand, any significant unanticipated changes in demand could have a significant impact on the value of our inventory and our reported operating results. If changes in market conditions result in reductions in the estimated net realizable value of our inventory below our previous estimate, the Company would increase our reserve in the period in which we made such a determination and record a charge to cost of product revenue.

</us-gaap:InventoryPolicyTextBlock>

<us-gaap:PropertyPlantAndEquipmentPolicyTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_84C_eus-gaap--PropertyPlantAndEquipmentPolicyTextBlock_zydnZp4Myn99" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Property, Plant, and Equipment Property, plant and equipment are stated at cost and depreciated using the straight-line method over their estimated useful lives as follows: Schedule of Useful Lives <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"> <tr style="vertical-align: top"> <td style="text-align: justify">Leasehold improvements</td> <td style="text-align: justify"><span id="xdx_904_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_zSo2U9NyhSYa" title="Useful live">Lesser of the life of the lease or the useful life of the improvement</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"> </td> <td style="text-align: justify"> </td></tr> <tr style="vertical-align: top"> <td style="text-align: justify">Computers and related software</td> <td style="text-align: justify"><span id="xdx_90F_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--ComputerSoftwareIntangibleAssetMember__srt--RangeAxis__srt--MinimumMember_zf52LRkt1uh3" title="Useful live::XDX::P3Y">3 to <span id="xdx_907_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--ComputerSoftwareIntangibleAssetMember__srt--RangeAxis__srt--MaximumMember_zCdzGVBNUXD4" title="::XDX::P5Y">5 years</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"> </td> <td style="text-align: justify"> </td></tr> <tr style="vertical-align: top"> <td style="text-align: justify">Cryptocurrency miners</td> <td style="text-align: justify"><span id="xdx_908_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--CryptocurrencyMinersMember_z2IcINC1Vlfb" title="::XDX::P3Y">3 years</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"> </td> <td style="text-align: justify"> </td></tr> <tr style="vertical-align: top"> <td style="text-align: justify">Machinery and equipment</td> <td style="text-align: justify"><span id="xdx_900_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--MachineryAndEquipmentMember__srt--RangeAxis__srt--MinimumMember_zPrzaGdF80Sd" title="::XDX::P8Y">8 to <span id="xdx_909_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--MachineryAndEquipmentMember__srt--RangeAxis__srt--MaximumMember_zJjZsLejL8p6" title="::XDX::P15Y">15 years</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"> </td> <td style="text-align: justify"> </td></tr> <tr style="vertical-align: top"> <td style="text-align: justify">Office furniture, equipment and fixtures</td> <td style="text-align: justify"><span id="xdx_902_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureEquipmentAndFixturesMember__srt--RangeAxis__srt--MinimumMember_zR8Cmn6GLXja" title="::XDX::P2Y">2 to <span id="xdx_905_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureEquipmentAndFixturesMember__srt--RangeAxis__srt--MaximumMember_z9qFnyg0VLP" title="::XDX::P10Y">10 years</td></tr> <tr> <td style="vertical-align: top; text-align: justify"> </td> <td style="vertical-align: top; text-align: justify"> </td> </tr> <tr> <td style="vertical-align: top; width: 40%; text-align: justify">Buildings</td> <td style="vertical-align: top; width: 60%; text-align: justify"><span id="xdx_909_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--BuildingsMember__srt--RangeAxis__srt--MinimumMember_zd9NCJNV9Rs1" title="::XDX::P30Y">30-<span id="xdx_907_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--BuildingsMember__srt--RangeAxis__srt--MaximumMember_zhQUNKHTJxnl" title="::XDX::P40Y">40 years</td> </tr> <tr> <td style="vertical-align: top; text-align: justify"> </td> <td style="vertical-align: top; text-align: justify"> </td> </tr> <tr> <td style="vertical-align: top; text-align: justify">Purchased modular buildings</td> <td style="vertical-align: top; text-align: justify"><span id="xdx_907_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--PurchasedModularBuildingsMember__srt--RangeAxis__srt--MinimumMember_zm9H9rFh2q31" title="::XDX::P15Y">15-<span id="xdx_901_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--PurchasedModularBuildingsMember__srt--RangeAxis__srt--MaximumMember_zb94rOWUPCBa" title="::XDX::P20Y">20 years</td> </tr> </table> Significant additions or improvements extending assets’ useful lives are capitalized; normal maintenance and repair costs are expensed as incurred. The costs of fully depreciated assets remaining in use are included in the respective asset and accumulated depreciation accounts. When items are sold or retired, related gains or losses are included in net (loss) income.

</us-gaap:PropertyPlantAndEquipmentPolicyTextBlock>

<mkty:ScheduleOfUsefulLivesTableTextBlock contextRef="From2021-01-01to2021-12-31">

Property, plant and equipment are stated at cost and depreciated using the straight-line method over their estimated useful lives as follows: Schedule of Useful Lives <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"> <tr style="vertical-align: top"> <td style="text-align: justify">Leasehold improvements</td> <td style="text-align: justify"><span id="xdx_904_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_zSo2U9NyhSYa" title="Useful live">Lesser of the life of the lease or the useful life of the improvement</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"> </td> <td style="text-align: justify"> </td></tr> <tr style="vertical-align: top"> <td style="text-align: justify">Computers and related software</td> <td style="text-align: justify"><span id="xdx_90F_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--ComputerSoftwareIntangibleAssetMember__srt--RangeAxis__srt--MinimumMember_zf52LRkt1uh3" title="Useful live::XDX::P3Y">3 to <span id="xdx_907_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--ComputerSoftwareIntangibleAssetMember__srt--RangeAxis__srt--MaximumMember_zCdzGVBNUXD4" title="::XDX::P5Y">5 years</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"> </td> <td style="text-align: justify"> </td></tr> <tr style="vertical-align: top"> <td style="text-align: justify">Cryptocurrency miners</td> <td style="text-align: justify"><span id="xdx_908_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--CryptocurrencyMinersMember_z2IcINC1Vlfb" title="::XDX::P3Y">3 years</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"> </td> <td style="text-align: justify"> </td></tr> <tr style="vertical-align: top"> <td style="text-align: justify">Machinery and equipment</td> <td style="text-align: justify"><span id="xdx_900_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--MachineryAndEquipmentMember__srt--RangeAxis__srt--MinimumMember_zPrzaGdF80Sd" title="::XDX::P8Y">8 to <span id="xdx_909_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--MachineryAndEquipmentMember__srt--RangeAxis__srt--MaximumMember_zJjZsLejL8p6" title="::XDX::P15Y">15 years</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify"> </td> <td style="text-align: justify"> </td></tr> <tr style="vertical-align: top"> <td style="text-align: justify">Office furniture, equipment and fixtures</td> <td style="text-align: justify"><span id="xdx_902_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureEquipmentAndFixturesMember__srt--RangeAxis__srt--MinimumMember_zR8Cmn6GLXja" title="::XDX::P2Y">2 to <span id="xdx_905_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeFurnitureEquipmentAndFixturesMember__srt--RangeAxis__srt--MaximumMember_z9qFnyg0VLP" title="::XDX::P10Y">10 years</td></tr> <tr> <td style="vertical-align: top; text-align: justify"> </td> <td style="vertical-align: top; text-align: justify"> </td> </tr> <tr> <td style="vertical-align: top; width: 40%; text-align: justify">Buildings</td> <td style="vertical-align: top; width: 60%; text-align: justify"><span id="xdx_909_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--BuildingsMember__srt--RangeAxis__srt--MinimumMember_zd9NCJNV9Rs1" title="::XDX::P30Y">30-<span id="xdx_907_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--BuildingsMember__srt--RangeAxis__srt--MaximumMember_zhQUNKHTJxnl" title="::XDX::P40Y">40 years</td> </tr> <tr> <td style="vertical-align: top; text-align: justify"> </td> <td style="vertical-align: top; text-align: justify"> </td> </tr> <tr> <td style="vertical-align: top; text-align: justify">Purchased modular buildings</td> <td style="vertical-align: top; text-align: justify"><span id="xdx_907_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--PurchasedModularBuildingsMember__srt--RangeAxis__srt--MinimumMember_zm9H9rFh2q31" title="::XDX::P15Y">15-<span id="xdx_901_eus-gaap--PropertyPlantAndEquipmentEstimatedUsefulLives_dtxL_c20210101__20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--PurchasedModularBuildingsMember__srt--RangeAxis__srt--MaximumMember_zb94rOWUPCBa" title="::XDX::P20Y">20 years</td> </tr> </table>

</mkty:ScheduleOfUsefulLivesTableTextBlock>

<us-gaap:PropertyPlantAndEquipmentEstimatedUsefulLives contextRef="From2021-01-012021-12-31_us-gaap_LeaseholdImprovementsMember"> Lesser of the life of the lease or the useful life of the improvement </us-gaap:PropertyPlantAndEquipmentEstimatedUsefulLives>

<us-gaap:IntangibleAssetsFiniteLivedPolicy contextRef="From2021-01-01to2021-12-31">

Intangible assets Intangible assets include the Strategic Pipeline Contract with an estimated useful life of <span id="xdx_90B_eus-gaap--AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_dxL_c20210101__20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--PipelineContractMember_z3ZxlqgR9LW" title="Useful life::XDX::P5Y">5 years, assembled workforce of individuals included as part of the asset acquisition with an estimated useful life of 5 years and patents with an estimated useful life of <span id="xdx_90E_eus-gaap--AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_dxL_c20210101__20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember__srt--RangeAxis__srt--MinimumMember_zLDY7p8Ddee6" title="::XDX::P15Y">15-<span id="xdx_90E_eus-gaap--AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_dxL_c20210101__20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember__srt--RangeAxis__srt--MaximumMember_zTkXokofh0Zd" title="::XDX::P25Y">25 years. The Company amortizes the intangible assets over their estimated useful lives on a straight-line basis. The Company does not recognize internally developed patents as intangible assets, however legal costs associated with defending such patents are capitalized as long-lived assets.

</us-gaap:IntangibleAssetsFiniteLivedPolicy>

<us-gaap:IncomeTaxPolicyTextBlock contextRef="From2021-01-01to2021-12-31">

Income Taxes The Company is subject to income taxes in the U.S. (federal and state). As part of the process of preparing our consolidated financial statements, the Company calculates income taxes for each of the jurisdictions in which the Company operates. This involves estimating actual current taxes due together with assessing temporary differences resulting from differing treatment for tax and accounting purposes that are recorded as deferred tax assets and liabilities, loss carryforwards and tax credit carryforwards, for which income tax benefits are expected to be realized in future years. A valuation allowance has been established to reduce deferred tax assets, if it is more likely than not that all, or some portion, of such deferred tax assets will not be realized. The effect on deferred taxes of a change in tax rates is recognized in the period that includes the enactment date. Significant management judgment is required in determining the Company’s provision for income taxes, deferred tax assets and liabilities, and any valuation allowance recorded against the Company’s net deferred tax assets. The Company considers all available evidence, both positive and negative, such as historical levels of income and future forecasts of taxable income amongst other items in determining the Company’s valuation allowance. In addition, the Company’s assessment requires the Company to schedule future taxable income in accordance with accounting standards that address income taxes to assess the appropriateness of a valuation allowance, which further requires the exercise of significant management judgment. The Company accounts for taxes in accordance with the asset and liability method of accounting for income taxes. Under this method, the Company must recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate resolution. The impact of the Company’s reassessment of its tax positions for these standards did not have a material impact on its results of operations, financial condition, or liquidity. The Company is currently subject to audit in various jurisdictions, and these jurisdictions may assess additional income tax liabilities against us. Developments in an audit, litigation, or in applicable laws, regulations, administrative practices, principles, and interpretations could have a material effect on the Company’s operating results or cash flows in the period or periods in which such developments occur, as well as for prior and in subsequent periods. Tax laws, regulations, and administrative practices in various jurisdictions may be subject to significant change, with or without notice, due to economic, political, and other conditions, and significant judgment is required in evaluating and estimating the Company’s provision and accruals for these taxes. There are many transactions that occur during the ordinary course of business for which the ultimate tax determination is uncertain. The Company’s effective tax rates could be affected by numerous factors, such as intercompany transactions, earnings being lower than anticipated in jurisdictions where the Company has lower statutory rates and higher than anticipated in jurisdictions where the Company has higher statutory rates, the applicability of special tax regimes, losses incurred in jurisdictions for which the Company is not able to realize the related tax benefit, changes in foreign currency exchange rates, entry into new businesses and geographies, changes to its existing businesses and operations, acquisitions and investments and how they are financed, changes in the Company’s stock price, changes in its deferred tax assets and liabilities and their valuation, and changes in the relevant tax, accounting, and other laws, regulations, administrative practices, principles, and interpretations.

</us-gaap:IncomeTaxPolicyTextBlock>

<us-gaap:EquityMethodInvestmentsPolicy contextRef="From2021-01-01to2021-12-31">

Equity Investment – HEL The Company owns approximately <span id="xdx_90D_eus-gaap--EquityMethodInvestmentOwnershipPercentage_iI_pid_dp_uPure_c20211231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--SolunaMember_zMqG6YRjcA2a" title="Equity ownership percentage">1.79% and <span id="xdx_909_eus-gaap--EquityMethodInvestmentOwnershipPercentage_iI_pii_dp_uPure_c20201231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--SolunaMember_zvcUXbw8iI0d" title="Equity ownership percentage">1.86% of HEL’s outstanding stock, calculated on a fully-diluted basis, as of December 31, 2021 and 2020. The equity investment in HEL is carried at the cost of investment and was $750 thousand as of December 31, 2021 and 2020. Equity Investments without Readily Determinable Fair Values Our equity investment in HEL is accounted for under the measurement alternative. Equity securities measured and recorded using the measurement alternative are recorded at cost minus impairment, if any, plus or minus changes resulting from qualifying observable price changes. Adjustments resulting from impairments and observable price changes are recorded in the income statement. There was no impairment of investment recognized in 2021 and 2020. Equity Method Investments The Company’s consolidated net income will include our proportionate share, if any, of the net income or loss of our equity method investee. When the Company records its proportionate share of net income, it increases equity income (loss), net in our consolidated statements of operations and our carrying value in that investment. Conversely, when the Company records its proportionate share of a net loss, it decreases equity income (loss), net in our consolidated statements of operations and our carrying value in that investment. When the Company’s carrying value in an equity method investee company has been reduced to zero, no further losses are recorded in the Company’s financial statements unless the Company guaranteed obligations of the investee company or has committed additional funding. When the investee company subsequently reports income, the Company will not record its share of such income until it equals the amount of its share of losses not previously recognized. As of December 31, 2021, the Company owned approximately <span id="xdx_900_eus-gaap--EquityMethodInvestmentOwnershipPercentage_iI_pii_dp_uPure_c20211231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--MeOHPowerMember_zAP6fxoR7GN3" title="Equity ownership percentage">47.5% of MeOH Power, Inc.’s outstanding common stock, or <span id="xdx_90A_eus-gaap--InvestmentOwnedBalanceShares_iI_pii_uShares_c20211231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--MeOHPowerMember_zXEgJMlpvEKa" title="Investment shares owned">75,049,937 shares. The number of shares of MeOH Power, Inc.’s common stock authorized for issuance is <span id="xdx_907_eus-gaap--CommonStockSharesOutstanding_iI_pii_uShares_c20211231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--MeOHPowerMember_zDqd1HZsE5q7" title="Common Stock, shares outstanding">240,000,000 as of December 31, 2021. The Company records its investment in MeOH Power, Inc. using the equity method of accounting. The fair value of the Company’s interest in MeOH Power, Inc. has been determined to be $0 as of December 31, 2021 and December 31, 2020, based on MeOH Power, Inc.’s net position and expected cash flows.

</us-gaap:EquityMethodInvestmentsPolicy>

<us-gaap:EquityMethodInvestmentOwnershipPercentage contextRef="AsOf2021-12-31_custom_SolunaMember" decimals="INF" unitRef="Pure"> 0.0179 </us-gaap:EquityMethodInvestmentOwnershipPercentage>

<us-gaap:EquityMethodInvestmentOwnershipPercentage contextRef="AsOf2020-12-31_custom_SolunaMember" decimals="INF" unitRef="Pure"> 0.0186 </us-gaap:EquityMethodInvestmentOwnershipPercentage>

<us-gaap:EquityMethodInvestments contextRef="AsOf2021-12-31_custom_SolunaMember" decimals="-3" unitRef="USD"> 750000 </us-gaap:EquityMethodInvestments>

<us-gaap:EquityMethodInvestments contextRef="AsOf2020-12-31_custom_SolunaMember" decimals="-3" unitRef="USD"> 750000 </us-gaap:EquityMethodInvestments>

<us-gaap:EquityMethodInvestmentOwnershipPercentage contextRef="AsOf2021-12-31_custom_MeOHPowerMember" decimals="INF" unitRef="Pure"> 0.475 </us-gaap:EquityMethodInvestmentOwnershipPercentage>

<us-gaap:InvestmentOwnedBalanceShares contextRef="AsOf2021-12-31_custom_MeOHPowerMember" decimals="INF" unitRef="Shares"> 75049937 </us-gaap:InvestmentOwnedBalanceShares>

<us-gaap:CommonStockSharesOutstanding contextRef="AsOf2021-12-31_custom_MeOHPowerMember" decimals="INF" unitRef="Shares"> 240000000 </us-gaap:CommonStockSharesOutstanding>

<us-gaap:EquityMethodInvestments contextRef="AsOf2021-12-31_custom_MeOHPowerMember" decimals="-3" unitRef="USD"> 0 </us-gaap:EquityMethodInvestments>

<us-gaap:EquityMethodInvestments contextRef="AsOf2020-12-31_custom_MeOHPowerMember" decimals="-3" unitRef="USD"> 0 </us-gaap:EquityMethodInvestments>

<us-gaap:FairValueMeasurementPolicyPolicyTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_845_eus-gaap--FairValueMeasurementPolicyPolicyTextBlock_z5vBvsHVOlzc" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Fair Value Measurement The estimated fair value of certain financial instruments, including cash, accounts receivable and short-term debt approximates their carrying value due to their short maturities and varying interest rates. “Fair value” is the price that would be received to sell an asset or transfer a liability in an orderly transaction between market participants at the measurement date. The Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. Based on the observability of the inputs used in the valuation methods, the Company is required to provide the following information according to the fair value accounting standards. These standards established a fair value hierarchy as specified that ranks the quality and reliability of the information used to determine fair values. Financial assets and liabilities are classified and disclosed in one of the following three categories: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; width: 100%"><tr style="vertical-align: top; text-align: justify"> <td style="width: 0in"/><td style="width: 10%; text-align: left">Level 1:</td><td style="text-align: justify; width: 90%">Quoted market prices in active markets for identical assets or liabilities, which includes listed equities.</td> </tr></table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; width: 100%"> <tr style="vertical-align: top; text-align: justify"> <td style="width: 0in"> </td><td style="text-align: left; width: 10%">Level 2:</td><td style="text-align: justify; width: 90%">Observable market-based inputs or unobservable inputs that are corroborated by market data. These items are typically priced using models or other valuation techniques. These models are primarily financial industry-standard models that consider various assumptions, including the time value of money, yield curves, volatility factors, as well as other relevant economic measures.</td></tr> </table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; width: 100%"> <tr style="vertical-align: top; text-align: justify"> <td style="width: 0in"> </td><td style="text-align: left; width: 10%">Level 3:</td><td style="text-align: justify; width: 90%">These use unobservable inputs that are not corroborated by market data. These values are generally estimated based upon methodologies utilizing significant inputs that are generally less observable from objective sources.</td></tr> </table> The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Assets and liabilities measured at fair value are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. On October 25, 2021, pursuant to a securities purchase agreement dated October 20, 2021 (the “SPA), the Company issued to certain accredited investors Class A, Class B and Class C common stock purchase warrants (collectively, the “Warrants”) to purchase up to an aggregate of 1,776,073 shares of common stock (the “Warrant Shares”), at an exercise price $<span id="xdx_90B_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20211025__us-gaap--StatementClassOfStockAxis__us-gaap--CommonClassAMember_zceaAz7z3m8g" title="Warranty liability">12.50, $15 and $18 per share, respectively. The Warrants are considered freestanding equity-classified instruments due to their detachable and separately exercisable features and meet the indexation criteria within derivative accounting. Accordingly, the Warrants are presented as a component of Stockholders’ Equity in accordance with derivative accounting. The fair value of the Warrants was determined to be $<span id="xdx_90D_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20211231__us-gaap--StatementClassOfStockAxis__custom--ClassAWarrantMember_zVw6GwuZUbEd" title="Warranty liability">8.29 per Class A Warrant, $<span id="xdx_907_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20211231__us-gaap--StatementClassOfStockAxis__custom--ClassBWarrantMember_z3fiCj8KChO3" title="Warranty liability">8.10 per Class B warrant, and $<span id="xdx_907_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_pid_uUSDPShares_c20211231__us-gaap--StatementClassOfStockAxis__custom--ClassCWarrantMember_zBh9neGrDFyc" title="Warranty liability">7.95 per Class C warrant as of the valuation date, using Monte Carlo simulations and certain Level 3 inputs. Inherent in a Monte Carlo simulation are assumptions related to expected stock-price volatility, expected life, risk-free interest rate and dividend yield. The Company estimates the volatility of its common stock warrants based on implied volatility from its traded warrants and historical volatility of select peers’ common stock with a similar expected term of the Warrants. The risk-free interest rate is based on the U.S. Treasury zero-coupon yield on the grant date with a maturity similar to the expected remaining term of the warrants. The expected term of the Warrants is assumed to be equivalent to their remaining contractual term. The dividend rate is based on the historical rate, which the Company expects to remain at zero. <p id="xdx_89B_eus-gaap--FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_z5G2pAjvdGBl" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify; background-color: white">The following table provides quantitative information regarding the inputs to the fair value measurement of the Warrants as of the valuation date: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="border-bottom: Black 1pt solid; font-weight: bold">Input</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 85%; text-align: left">Risk-free interest rate</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">1.19</td><td style="width: 1%; text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Expected term (years)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5.00</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Expected volatility</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate_pid_dp_uPure_c20210101__20211231_zz664hlMzvm6" title="Expected volatility">150.00</td><td style="text-align: left">%</td></tr> </table> Consistent with the guidance in purchase accounting, the value of the pipeline of certain cryptocurrency mining projects previously owned by HEL acquired in the Soluna Callisto acquisition in October 2021 as of the acquisition date was estimated using an expected value approach, which probability-weights various future outcomes and uses certain Level 3 inputs. Including in those inputs are the following key assumptions: expected growth in share price at a risk-free rate in the risk-neutral framework based on U.S. Treasury Rates as of the valuation date, volatility of share price based on historical equity volatilities of comparable companies over a lookback period, and assessment associated with qualified projects based on assessment on timing of payments and assessment of active megawatt scenarios and the associated probabilities. The resulting amounts are then discounted to present value through use of a discount rate that considers, among other things, the risk of the payments, credit risk of the Company, and overall weighted average cost of capital of the acquired business. The resulting calculations resulted in an estimated fair value of the acquired assets and consideration paid in common stock of approximately $33 million, which was included as part of the consideration paid in the Soluna Callisto acquisition. As noted in Note 5, Accounting Standards Codification (“ASC”) 805-50 provides that assets acquired in an asset acquisition are measured based on the costs of the acquisition, which is the consideration that the acquirer transfers to the seller, and includes direct transaction costs related to the acquisition in which costs were an additional $3.5 million including as part of the acquired assets.

</us-gaap:FairValueMeasurementPolicyPolicyTextBlock>

<mkty:PurchaseOfShares contextRef="From2021-10-202021-10-25_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 1776073 </mkty:PurchaseOfShares>

<us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 contextRef="AsOf2021-10-25_us-gaap_CommonClassAMember" decimals="INF" unitRef="USDPShares"> 12.50 </us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1>

<us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 contextRef="AsOf2021-10-26_us-gaap_CommonClassBMember" decimals="INF" unitRef="USDPShares"> 15 </us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1>

<us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 contextRef="AsOf2021-10-25_us-gaap_CommonClassCMember" decimals="INF" unitRef="USDPShares"> 18 </us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1>

<us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 contextRef="AsOf2021-12-31_custom_ClassAWarrantMember" decimals="INF" unitRef="USDPShares"> 8.29 </us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1>

<us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 contextRef="AsOf2021-12-31_custom_ClassBWarrantMember" decimals="INF" unitRef="USDPShares"> 8.10 </us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1>

<us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 contextRef="AsOf2021-12-31_custom_ClassCWarrantMember" decimals="INF" unitRef="USDPShares"> 7.95 </us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1>

<us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_89B_eus-gaap--FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock_z5G2pAjvdGBl" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify; background-color: white">The following table provides quantitative information regarding the inputs to the fair value measurement of the Warrants as of the valuation date: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="border-bottom: Black 1pt solid; font-weight: bold">Input</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 85%; text-align: left">Risk-free interest rate</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">1.19</td><td style="width: 1%; text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Expected term (years)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">5.00</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Expected volatility</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate_pid_dp_uPure_c20210101__20211231_zz664hlMzvm6" title="Expected volatility">150.00</td><td style="text-align: left">%</td></tr> </table>

</us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 0.0119 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 1.5000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate>

<us-gaap:FairValueOfAssetsAcquired contextRef="From2021-01-01to2021-12-31" decimals="-6" unitRef="USD"> 33000000 </us-gaap:FairValueOfAssetsAcquired>

<us-gaap:AcquisitionCosts contextRef="From2021-01-01to2021-12-31" decimals="0" unitRef="USD"> 3500000 </us-gaap:AcquisitionCosts>

<us-gaap:RevenueRecognitionPolicyTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_84D_eus-gaap--RevenueRecognitionPolicyTextBlock_z7k1dKOIGC0e" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Revenue Recognition Cryptocurrency Mining Revenue The Company recognizes revenue under ASC 606, Revenue from Contracts with Customers. The core principles of the revenue standard is that a company should recognize revenue to depict the transfer of promised good or services to customers in an amount that reflects the consideration to which the company expects to be entitled for those goods or services. The following five steps are applied to achieve that core principle: ● Step 1: Identify the contract with the customer ● Step 2: Identify the performance obligations in the contract ● Step 3: Determine the transaction price ● Step 4: Allocate the transaction price to the performance obligations in the contract ● Step 5: Recognize revenue when the Company satisfies a performance obligation In order to identify the performance obligations in a contract with a customer, a company must assess the promised goods or services in the contract and identify each promised good or service that is distinct. A performance obligation meets ASC 606’s definition of a “distinct” good or service (or bundle of goods or services) if both of the following criteria are met: The customer can benefit from the good or service either on its own or together with other resources that are readily available to the customer (i.e., the good or service is capable of being distinct), and the entity’s promise to transfer the good or service to the customer is separately identifiable from other promises in the contract (i.e., the promise to transfer the good or service is distinct within the context of the contract). If a good or service is not distinct, the good or service is combined with other promised goods or services until a bundle of goods or services is identified that is distinct. The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer. The consideration promised in a contract with a customer may include fixed amounts, variable amounts, or both. When determining the transaction price, an entity must consider the effects of all of the following: ● Variable consideration ● Constraining estimates of variable consideration ● The existence of a significant financing component in the contract ● Noncash consideration ● Consideration payable to a customer Variable consideration is included in the transaction price only to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. The transaction price is allocated to each performance obligation on a relative standalone selling price basis. The transaction price allocated to each performance obligation is recognized when that performance obligation is satisfied, at a point in time or over time as appropriate. Providing computing power to solve complex cryptographic algorithms in support of the Bitcoin blockchain (in a process known as “solving a block”) is an output of the Company’s ordinary activities. The provision of providing such computing power is the only performance obligation in the Company’s contracts with mining pool operators. The transaction consideration the Company receives, if any, is noncash consideration, which the Company measures at fair value on the date received, which is not materially different than the fair value at contract inception or the time the Company has earned the award from the pools. The consideration is all variable. Because it is not probable that a significant reversal of cumulative revenue will not occur, the consideration is constrained until the mining pool operator successfully places a block (by being the first to solve an algorithm) and the Company receives confirmation of the consideration it will receive, at which time revenue is recognized. There is no significant financing component in these transactions. Fair value of the cryptocurrency award received is determined using the quoted price of the related cryptocurrency where the Company is registered at the time of receipt. The mined cryptocurrency is immediately paid to the Coinbase wallet. Cryptocurrency is converted to U.S. dollars daily, as SCI is not in the business of accumulating cryptocurrency on its balance sheet. Data center hosting The Company has entered into customer hosting contracts whereby the Company provides electrical power and network connectivity to cryptocurrency mining customers, and the customers pay a stated amount per megawatt-hour (“MWh”) (“Contract Capacity”), a fixed rate, as well as a share of the coins mined. The fee is paid monthly in advance. The actual monthly amounts are calculated after the close of each month and reconciled to the monthly advance based on the clauses contained in the respective contracts. If any shortfalls due to outages are experienced, service level credits may be made to customers to offset outages which prevented them from cryptocurrency mining. Monthly advanced payments and customer deposits are reflected as other liabilities. Customer contract security deposits are made at the time the contract is signed and held until the conclusion of the contract relationship. Deferred revenue is primarily from advance monthly payments received and revenue is recognized when service is completed. Product Revenue The Company notes that product revenue is included within Net income from discontinued operations for the year ended December 31, 2021 and 2020. Product revenue consists of revenue recognized from MTI Instruments’ product lines. In general, the Company determines revenue recognition by: (1) identifying the contract, or contracts, with the customer; (2) identifying the performance obligations in the contract; (3) determining the contract price; (4) allocating the transaction price to performance obligations in the contract; and (5) recognizing revenue when, or as, the performance obligations are satisfied by transferring the promised goods or services. Based on past experience, the Company reasonably estimates its returns and warranty reserves. Revenue is presented net of discounts and allowances, which are determined when the sale is negotiated. The nature of the Company’s contracts do not give rise to variable consideration. The Company enters into contracts that can include various combinations of products and services, which are generally capable of being distinct and accounted for as separate performance obligations. If the product requires that the Company provide installation, all revenue related to the product is deferred and recognized upon the completion of the installation. If the product requires specific customer acceptance criteria, such as on-site customer acceptance and/or acceptance after install, then revenue is deferred until customer acceptance occurs or the acceptance provisions lapse, unless the Company can objectively and reliably demonstrate that the criteria specified in the acceptance provisions is satisfied. The Company may also record unearned revenues, which include payments for other offerings for which we have been paid in advance. The resulting revenue would be earned when we transfer control of the product or service. As of December 31, 2021 and December 31, 2020 the Company had no deferred or unearned revenue. MTI Instruments currently has distributor agreements in place for the international sale of general instrument and semiconductor products in certain global regions. Such agreements grant a distributor the right of first refusal to act as distributor for such products in the distributor’s territory. In return, the distributor agrees to not market other products which are considered by MTI Instruments to be in direct competition with MTI Instruments’ products. The distributor is allowed to purchase MTI Instruments’ equipment at a price which is discounted off the published domestic/international list prices. Such list prices can be adjusted by MTI Instruments during the term of the distributor agreement. Generally, payment terms with the distributor are standard net 30 days; however, on occasion, extended payment terms have been granted. Title and risk of loss of the product passes to the distributor upon delivery to the independent carrier (standard “free-on-board” factory), and the distributor is responsible for any required training and/or service with the end-user. The sale (and subsequent payment) between MTI Instruments and the distributor is not contingent upon the successful resale of the product by the distributor. Distributor sales are covered by MTI Instruments’ standard one-year warranty and there are no special return policies for distributors. The transaction price is determined based on the consideration to which the Company will be entitled in exchange for transferring services to the customer. If the contract contains a single performance obligation, the entire transaction price is allocated to the single performance obligation. Contracts that contain multiple performance obligations require an allocation of the transaction price to each performance obligation based on a relative standalone selling price basis unless the transaction price is variable and meets the criteria to be allocated entirely to a performance obligation or to a distinct good or service that forms part of a single performance obligation. The Company determines standalone selling price based on the price at which the performance obligation is sold separately. If the standalone selling price is not observable through past transactions, the Company estimates the standalone selling price taking into account available information such as market conditions and internally approved pricing guidelines related to the performance obligations. Shipping and handling charges billed to customers is a pass-through from the freight forwarder and is included in product revenue. Cost of Cryptocurrency Mining and Data Center Hosting Revenue Cost of cryptocurrency mining and data center hosting revenue includes direct utility costs as well as overhead costs that relate to the operations of SCI’s cryptocurrency mining facility. Cost of Product Revenue Cost of product revenue includes material, labor, overhead and shipping and handling costs.

</us-gaap:RevenueRecognitionPolicyTextBlock>

<us-gaap:ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy contextRef="From2021-01-01to2021-12-31">

<p id="xdx_849_eus-gaap--ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy_zD1jJRKmcLCk" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Accounts Receivable and Allowance for Doubtful Accounts Trade accounts receivable are stated at the invoiced amount billed to customers and do not bear interest. An allowance for doubtful accounts, if necessary, represents the Company’s best estimate of the amount of probable credit losses in its existing accounts receivable. The Company determines the allowance based on historical write-off experience and current exposures identified. The Company reviews its allowance for doubtful accounts monthly. Past due balances over 90 days and over a specified amount are reviewed individually for collectability. All other balances are reviewed on a pooled basis by type of receivable. Account balances are charged off against the allowance when the Company believes it is probable the receivable will not be recovered. The Company does not have any off-balance-sheet credit exposure related to its customers. The Company’s allowance for doubtful accounts was $0 at both December 31, 2021 and December 31, 2020. Payment terms and conditions vary by contract type, although terms generally include a requirement of payment within 20 days. In instances where the timing of revenue recognition differs from the timing of invoicing, we have determined our contracts generally do not include a significant financing component. The primary purpose of the Company’s invoicing terms is to provide customers with simplified and predictable ways of purchasing our products and services, not to receive financing from its customers. The Company recognizes an asset for the incremental costs of obtaining a contract with a customer, if the Company expects the benefit of those costs to be longer than one year. As of December 31, 2021 and December 31, 2020, the Company has recorded no capitalized costs to obtain a contract.

</us-gaap:ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy>

<mkty:DepositeOnEquipmentsPolicy contextRef="From2021-01-01to2021-12-31">

<p id="xdx_84E_ecustom--DepositeOnEquipmentsPolicy_zC7nLZO3N9v9" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify; text-indent: 0in">Deposits on Equipment As of December 31, 2021 and 2020, the Company had approximately $10.2 million and $279 thousand in deposits on equipment, which consisted mainly of miners, that had not yet been received by the Company as of the year end. within current assets as they expect to receive within three months. Once the Company receives such miners and other equipment in the subsequent period, the Company will reclassify such balance into Property, Plant, and Equipment.

</mkty:DepositeOnEquipmentsPolicy>

<us-gaap:DepositsOnFlightEquipment contextRef="AsOf2021-12-31" decimals="0" unitRef="USD"> 10200000 </us-gaap:DepositsOnFlightEquipment>

<us-gaap:DepositsOnFlightEquipment contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 279000 </us-gaap:DepositsOnFlightEquipment>

<us-gaap:StandardProductWarrantyPolicy contextRef="From2021-01-01to2021-12-31">

Warranty The Company notes that warranty liability is included in current liabilities associated with discontinued operations for the year ended December 31, 2021 and 2020. The Company accrues a warranty liability at the time product revenue is recorded based on historical experience. The liability is reviewed during the year and is adjusted, if appropriate, to reflect new product offerings or changes in experience. Actual warranty claims are tracked by product line. Warranty liability was $18 thousand and $22 thousand as of December 31, 2021 and 2020, respectively. Warranty expense was $3 thousand and $11 thousand for 2021 and 2020, respectively, in which was included in Net income from discontinued operations.

</us-gaap:StandardProductWarrantyPolicy>

<mkty:WarrantyLiability contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 18000 </mkty:WarrantyLiability>

<mkty:WarrantyLiability contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 22000 </mkty:WarrantyLiability>

<us-gaap:ProductWarrantyExpense contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 3000 </us-gaap:ProductWarrantyExpense>

<us-gaap:ProductWarrantyExpense contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 11000 </us-gaap:ProductWarrantyExpense>

<us-gaap:ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_840_eus-gaap--ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_zf9wEMOnaG1b" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Long-Lived Assets The Company accounts for impairment or disposal of long-lived assets in accordance with accounting standards that address the financial accounting and reporting for the impairment or disposal of long-lived assets, specify how impairment will be measured, and how impaired assets will be classified in the consolidated financial statements. On a quarterly basis, the Company analyzes the status of its long-lived assets at each subsidiary for potential impairment. As of December 31, 2021, the Company does not believe that any of its long-lived assets have suffered any type of impairment that would require an adjustment to that asset’s recorded value.

</us-gaap:ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock>

<us-gaap:CashAndCashEquivalentsPolicyTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_842_eus-gaap--CashAndCashEquivalentsPolicyTextBlock_zSxHmVyBYKz3" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Cash and Cash Equivalents Cash and cash equivalents consist of cash and highly liquid short-term investments with original maturities of less than three months.

</us-gaap:CashAndCashEquivalentsPolicyTextBlock>

<us-gaap:EarningsPerSharePolicyTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_844_eus-gaap--EarningsPerSharePolicyTextBlock_zugCxVFLX0y3" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Net Income (Loss) per Share The Company computes basic income (loss) per common share by dividing net income by the weighted average number of common shares outstanding during the reporting period. Diluted income (loss) per share reflects the potential dilution, if any, computed by dividing income (loss) by the combination of dilutive common share equivalents, comprised of shares issuable under outstanding investment rights, warrants and the Company’s share-based compensation plans, and the weighted average number of common shares outstanding during the reporting period. Dilutive common share equivalents include the dilutive effect of in-the-money stock options, which are calculated based on the average share price for each period using the treasury stock method. Under the treasury stock method, the exercise price of a stock option and the amount of compensation cost, if any, for future service that the Company has not yet recognized are assumed to be used to repurchase shares in the current period.

</us-gaap:EarningsPerSharePolicyTextBlock>

<us-gaap:CompensationRelatedCostsPolicyTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_848_eus-gaap--CompensationRelatedCostsPolicyTextBlock_zzb684vUirte" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Share-Based Payments The Company grants options to purchase our common stock and awards restricted stock to our employees and directors under our equity incentive plans. The benefits provided under these plans are share-based payments and the Company accounts for stock-based awards exchanged for employee service in accordance with the appropriate share-based payment accounting guidance. Stock-based compensation represents the cost related to stock-based awards granted to employees and directors. The Company measures stock-based compensation cost at grant date based on the estimated fair value of the award and recognizes the cost as expense on a straight-line basis in accordance with the vesting of the options (net of estimated forfeitures) over the employee’s requisite service period. The Company estimates the fair value of stock-based awards on the grant date using a Black- Scholes valuation model. The Company uses the fair value method of accounting, which provides for certain changes to the method for valuing share-based compensation. The valuation provisions apply to new awards and to awards that are outstanding on the effective date and subsequently modified. Under the modified prospective application, prior periods are not revised for comparative purposes. Stock-based compensation expense is recorded in the lines titled “Cost of revenue,” and “Selling, general and administrative expenses” in the Consolidated Statements of Operations based on the employees’ respective functions. The Company records deferred tax assets for awards that potentially can result in deductions on the Company’s income tax returns based on the amount of expense that is recognized and the Company’s statutory tax rate. All income tax effects of awards, including excess tax benefits, recognized on stock-based compensation expense are reflected in the Consolidated Statements of Operations as a component of the provision for income taxes on a prospective basis. The determination of the fair value of share-based payment awards on the date of grant using an option-pricing model is affected by the Company’s stock price as well as assumptions regarding a number of complex and subjective variables. These variables include the Company’s expected stock price volatility over the term of the awards, actual and projected employee stock option exercise behaviors, risk-free interest rate, and expected dividends. Theoretical valuation models and market-based methods are evolving and may result in lower or higher fair value estimates for share-based compensation. The timing, readiness, adoption, general acceptance, reliability, and testing of these methods is uncertain. Sophisticated mathematical models may require voluminous historical information, modeling expertise, financial analyses, correlation analyses, integrated software and databases, consulting fees, customization, and testing for adequacy of internal controls. For purposes of estimating the fair value of stock options granted using the Black-Scholes model, the Company uses the historical volatility of its stock for the expected volatility assumption input to the Black-Scholes model, consistent with the accounting guidance. The risk-free interest rate is based on the risk-free zero-coupon rate for a period consistent with the expected option term at the time of grant. The expected option term is calculated based on our historical forfeitures and cancellation rates. The fair value of restricted stock awards is based on the market close price per share on the grant date. The Company expenses the compensation cost of these awards as the restriction period lapses, which is typically a one- to three-year service period to the Company. The shares represented by restricted stock awards are outstanding at the grant date, and the recipients are entitled to voting rights with respect to such shares upon issuance.

</us-gaap:CompensationRelatedCostsPolicyTextBlock>

<mkty:NotesPayablePolicyTextBlock contextRef="From2021-01-01to2021-12-31">

Notes payable The Company records notes payable net of any discount or premiums. Discounts and premiums are amortized as interest expense or income over the life of the note in such a way as to result in a constant rate of interest when applied to the amount outstanding at the beginning of any given period.

</mkty:NotesPayablePolicyTextBlock>

<us-gaap:ConcentrationRiskCreditRisk contextRef="From2021-01-01to2021-12-31">

Concentration of Credit Risk Financial instruments that subject the Company to concentrations of credit risk principally consist of cash equivalents and trade accounts receivable. The Company’s trade accounts receivable are from data hosting revenue with the Company’s two customers. The Company does not require collateral and has not historically experienced significant credit losses related to receivables from individual customers or groups of customers in any particular industry or geographic area. From time to time, the Company’s cash account balances exceed the balances as covered by the Federal Deposit Insurance System. The Company has never suffered a loss due to such excess balances.

</us-gaap:ConcentrationRiskCreditRisk>

<us-gaap:ResearchAndDevelopmentExpensePolicy contextRef="From2021-01-01to2021-12-31">

<p id="xdx_848_eus-gaap--ResearchAndDevelopmentExpensePolicy_zNExiWt16R3d" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Research and Development Costs Research and development costs entirely related to the MTI Instruments business and as such was included within Net income from discontinued operations. The Company expenses research and development costs as incurred. The Company incurred research and development costs of approximately $1.5 million and $1.5 million for the years ended December 31, 2021 and 2020, respectively.

</us-gaap:ResearchAndDevelopmentExpensePolicy>

<us-gaap:AdvertisingCostsPolicyTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_84B_eus-gaap--AdvertisingCostsPolicyTextBlock_zBgTV0w4YiQk" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Advertising Costs Advertising costs entirely related to the MTI Instruments business and as such was included within Net income from discontinued operations . The Company expenses advertising costs as incurred. The Company incurred advertising costs of approximately $66 thousand and $39 thousand, for the years ended December 31, 2021 and 2020, respectively.

</us-gaap:AdvertisingCostsPolicyTextBlock>

<us-gaap:ComprehensiveIncomePolicyPolicyTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_848_eus-gaap--ComprehensiveIncomePolicyPolicyTextBlock_zXY44x5pqfi8" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Other Comprehensive Income The Company had no other comprehensive income items for the years ended December 31, 2021 and 2020.

</us-gaap:ComprehensiveIncomePolicyPolicyTextBlock>

<us-gaap:LesseeLeasesPolicyTextBlock contextRef="From2021-01-01to2021-12-31">

Leases The Company determines if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liability on our consolidated balance sheets. The Company did not have any finance leases as of December 31, 2021 or December 31, 2020. Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of the Company’s leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of future payments. The Company’s lease terms may include options to extend or terminate its leases when it is reasonably certain that the Company will exercise those options. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. The Company has lease agreements with lease and non-lease components, which are generally accounted for separately. For real estate leases, the Company accounts for lease components together with non-lease components (e.g. common-area maintenance).

</us-gaap:LesseeLeasesPolicyTextBlock>

<mkty:AccountingUpdatesNotYetEffectivePolicyTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_841_ecustom--AccountingUpdatesNotYetEffectivePolicyTextBlock_zuHXj9vFqFY9" style="font: italic bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Accounting Updates Not Yet Effective Changes to U.S. GAAP are established by the Financial Accounting Standards Board (“FASB”) in the form of accounting standard updates (“ASUs”) to the FASB’s Accounting Standards Codification (ASC). The Company considered the applicability and impact of all ASUs. ASUs not mentioned below were assessed and determined to be either not applicable or are expected to have minimal impact on our consolidated financial position or results of operations. In June 2016, the FASB issued ASU 2016-13 (Financial Instruments - Credit Losses (Topic 326)) and its subsequent amendments to the initial guidance within ASU 2018-19, ASU 2019-04, ASU 2019-05, ASU 2019-10, ASU 2019-11 and ASU 2020-02, respectively (collectively, Topic 326). Topic 326 changes how entities will measure credit losses for most financial assets and certain other instruments that are not accounted for at fair value through net income. This standard replaces the existing incurred credit loss model and establishes a single credit loss framework based on a current expected credit loss model for financial assets carried at amortized cost, including loans and held-to- maturity debt securities. The current expected loss model requires an entity to estimate credit losses expected over the life of the credit exposure upon initial recognition of that exposure when the financial asset is originated or acquired, which will generally result in earlier recognition of credit losses. This standard also requires expanded credit quality disclosures. For available-for-sale debt securities, entities will be required to record allowances rather than reduce the carrying amount, as they do today under the other-than-temporary impairment model. This standard also simplifies the accounting model for purchased credit-impaired debt securities and loans. This standard will affect loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. ASU 2018-19 clarifies that receivables arising from operating leases are accounted for using lease guidance and not as financial instruments. ASU 2019-04 clarifies that equity instruments without readily determinable fair values for which an entity has elected the measurement alternative should be remeasured to fair value as of the date that an observable transaction occurred. ASU 2019-05 provides an option to irrevocably elect to measure certain individual financial assets at fair value instead of amortized cost. This standard should be applied on either a prospective transition or modified-retrospective approach depending on the subtopic. This standard will be effective for the Company for annual and interim reporting periods beginning on or after December 15, 2022, and while early adoption is permitted, the Company does not expect to elect that option. The Company is currently evaluating the impact of the adoption of this standard on its consolidated financial statements, including assessing and evaluating assumptions and models to estimate losses. Upon adoption of this standard on January 1, 2023, the Company will be required to record a cumulative effect adjustment to retained earnings for the impact as of the date of adoption. The impact will depend on the Company’s portfolio composition and credit quality at the date of adoption, as well as forecasts at that time.

</mkty:AccountingUpdatesNotYetEffectivePolicyTextBlock>

<us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock contextRef="From2021-01-01to2021-12-31">

Accounting Updates Recently Adopted by the Company On January 1, 2021, the Company adopted ASU 2019-12 (Income Taxes (Topic 740) – Simplifying the Accounting for Income Taxes). This standard removes exceptions to the general principles in Topic 740 for allocating tax expense between financial statement components, accounting basis differences stemming from an ownership change in foreign investments and interim period income tax accounting for year-to-date losses that exceed projected losses. The adoption of this standard did not have a material impact on the Company’s consolidated financial statements. On January 1, 2021, the Company adopted ASU 2020-01 (Investments - Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815)). This standard clarifies certain interactions between the guidance to account for certain equity securities under Topic 321, the guidance to account for investments under the equity method of accounting in Topic 323, and the guidance in Topic 815, which could change how an entity accounts for an equity security under the measurement alternative or a forward contract or purchased option to purchase securities that, upon settlement of the forward contract or exercise of the purchased option, would be accounted for under the equity method of accounting or the fair value option in accordance with Topic 825, Financial Instruments. This standard improves current GAAP by reducing diversity in practice and increasing comparability of the accounting for these interactions. The adoption of this standard did not have a material impact on the Company’s consolidated financial statements. On January 1, 2021, the Company early adopted ASU 2020-06 (Debt-Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging- Contracts in Entity’s Own Equity (Subtopic 815-40). ASU 2020-06 simplifies the guidance in Accounting Standards Codification (ASC) 470-20, Debt - Debt with Conversion and Other Options. Under ASU 2020-06, convertible instruments with embedded conversion features, that are not required to be accounted for as a derivative or that do not result in a substantial premium, are no longer required to be separated from the host contract thereby eliminating the cash conversion and beneficial conversion feature model. Instead, these convertible debt instruments will be accounted for as a single liability measured at amortized cost under the traditional convertible debt accounting model. ASU 2020-06 also requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share. The Company has early adopted this standard for the year ended December 31, 2021. The early adoption of this standard eliminated calculating a beneficial conversion feature in relation to the SPA agreements that were entered into on October 25, 2021. Refer to Note 9 for more details. There have been no other significant changes in the Company’s reported financial position or results of operations and cash flows as a result of its adoption of new accounting pronouncements or changes to its significant accounting policies that were disclosed in its consolidated financial statements for the fiscal year ended December 31, 2021.

</us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock>

<us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">3.</td><td>Accounts Receivable</td></tr></table> Accounts receivables consist of the following at: Schedule of accounts receivables <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">December 31, 2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; text-align: left; text-indent: -0.25in; padding-left: 0.25in">Data Hosting</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98F_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_c20211231__us-gaap--AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis__custom--DatahostingMember_z3JlKLh3ISy9" style="width: 12%; text-align: right">450</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_989_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_d0_c20201231__us-gaap--AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis__custom--DatahostingMember_zaUOHIW5vb63" style="width: 12%; text-align: right">—</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1pt; text-indent: -0.25in; padding-left: 0.25in">Other</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_c20211231__us-gaap--AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis__custom--OtherReceivablesMember_z5JxlOqQ4iYb" style="border-bottom: Black 1pt solid; text-align: right">81</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_980_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_c20201231__us-gaap--AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis__custom--OtherReceivablesMember_zA201B0aqBp8" style="border-bottom: Black 1pt solid; text-align: right">59</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt; text-indent: -0.25in; padding-left: 27pt">Total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_988_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_c20211231_zWwUwtrAFcM5" style="border-bottom: Black 2.5pt double; text-align: right">531</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98C_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_c20201231_z95094eU0rZd" style="border-bottom: Black 2.5pt double; text-align: right">59</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock>

<us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock contextRef="From2021-01-01to2021-12-31">

Accounts receivables consist of the following at: Schedule of accounts receivables <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">December 31, 2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; text-align: left; text-indent: -0.25in; padding-left: 0.25in">Data Hosting</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98F_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_c20211231__us-gaap--AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis__custom--DatahostingMember_z3JlKLh3ISy9" style="width: 12%; text-align: right">450</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_989_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_d0_c20201231__us-gaap--AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis__custom--DatahostingMember_zaUOHIW5vb63" style="width: 12%; text-align: right">—</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1pt; text-indent: -0.25in; padding-left: 0.25in">Other</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_c20211231__us-gaap--AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis__custom--OtherReceivablesMember_z5JxlOqQ4iYb" style="border-bottom: Black 1pt solid; text-align: right">81</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_980_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_c20201231__us-gaap--AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis__custom--OtherReceivablesMember_zA201B0aqBp8" style="border-bottom: Black 1pt solid; text-align: right">59</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt; text-indent: -0.25in; padding-left: 27pt">Total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_988_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_c20211231_zWwUwtrAFcM5" style="border-bottom: Black 2.5pt double; text-align: right">531</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98C_eus-gaap--AccountsReceivableNetCurrent_iI_pn3n3_c20201231_z95094eU0rZd" style="border-bottom: Black 2.5pt double; text-align: right">59</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

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<us-gaap:AccountsReceivableNetCurrent contextRef="AsOf2021-12-31_custom_DatahostingMember" decimals="-3" unitRef="USD"> 450000 </us-gaap:AccountsReceivableNetCurrent>

<us-gaap:AccountsReceivableNetCurrent contextRef="AsOf2020-12-31_custom_DatahostingMember" decimals="-3" unitRef="USD"> 0 </us-gaap:AccountsReceivableNetCurrent>

<us-gaap:AccountsReceivableNetCurrent contextRef="AsOf2021-12-31_custom_OtherReceivablesMember" decimals="-3" unitRef="USD"> 81000 </us-gaap:AccountsReceivableNetCurrent>

<us-gaap:AccountsReceivableNetCurrent contextRef="AsOf2020-12-31_custom_OtherReceivablesMember" decimals="-3" unitRef="USD"> 59000 </us-gaap:AccountsReceivableNetCurrent>

<us-gaap:AccountsReceivableNetCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 531000 </us-gaap:AccountsReceivableNetCurrent>

<us-gaap:AccountsReceivableNetCurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 59000 </us-gaap:AccountsReceivableNetCurrent>

<us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">4.</td><td>Property, Plant and Equipment</td></tr></table> Property, plant and equipment consist of the following at: Schedule of Property, Plant and Equipment <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">December 31, 2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%">Land</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98F_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LandMember_zOV5FEEfJ3Eh" style="width: 12%; text-align: right">52</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_982_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LandMember_zTZlFJawNyLa" style="width: 12%; text-align: right">—</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Land improvements</td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--LandImprovements_iI_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LandImprovementsMember_zZrNDLNffU4f" style="text-align: right" title="Land improvements">238</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--LandImprovements_iI_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LandImprovementsMember_zp5OFFKraj1a" style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Buildings</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_ecustom--Buildings_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--BuildingsMember_zA0EfWoo36aa" style="text-align: right" title="Buildings">5,650</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_ecustom--Buildings_iI_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--BuildingsMember_zXjjmgh1gES5" style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Leasehold improvements</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_zp88Ru6sT2Td" style="text-align: right">317</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_zjfTr7e5fp15" style="text-align: right">223</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Vehicles</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--VehiclesMember_zbwbqPpUm9X2" style="text-align: right">15</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--VehiclesMember_zKOsbmMG7K9h" style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Computers and related software</td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--TechnologyEquipmentMember_zkEVqDwZm7ne" style="text-align: right">30,890</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--TechnologyEquipmentMember_zaRaEs9CPfDh" style="text-align: right">1,140</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Machinery and equipment</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--MachineryAndEquipmentMember_zK2qdRwmsxxa" style="text-align: right">2,588</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--MachineryAndEquipmentMember_zNOVpnWR8ki" style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Office furniture and fixtures</td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--FurnitureAndFixturesMember_z2uRkmip6pMc" style="text-align: right">22</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--FurnitureAndFixturesMember_zpOb5Dhkteci" style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Construction in progress</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_989_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--ConstructionInProgressMember_zrNhCsAGRCJg" style="border-bottom: Black 1pt solid; text-align: right">7,590</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--ConstructionInProgressMember_zwWq5028KI87" style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98C_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231_z9kUIKcNSQ78" style="text-align: right">47,362</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_983_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20201231_zRQr5fzR3i0c" style="text-align: right">1,363</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Less: Accumulated depreciation</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_985_eus-gaap--AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_iNI_pn3n3_di_c20211231_zsNHbLizp8Zj" style="border-bottom: Black 1pt solid; text-align: right">(2,765</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_981_eus-gaap--AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_iNI_pn3n3_di_c20201231_zNvmawv7D7L1" style="border-bottom: Black 1pt solid; text-align: right">(641</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98A_eus-gaap--PropertyPlantAndEquipmentNet_iI_pn3n3_c20211231_z8k4rhuiILH1" style="border-bottom: Black 2.5pt double; text-align: right">44,597</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98C_eus-gaap--PropertyPlantAndEquipmentNet_iI_pn3n3_c20201231_zQ1KhbEm6hxi" style="border-bottom: Black 2.5pt double; text-align: right">722</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Depreciation expense was $2.1 million and $81 thousand for the years ended December 31, 2021 and 2020, respectively. Repairs and maintenance expense was $77 thousand and $16 thousand for the years ended December 31, 2021 and 2020, respectively.

</us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock>

<us-gaap:PropertyPlantAndEquipmentTextBlock contextRef="From2021-01-01to2021-12-31">

Property, plant and equipment consist of the following at: Schedule of Property, Plant and Equipment <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">December 31, 2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%">Land</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98F_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LandMember_zOV5FEEfJ3Eh" style="width: 12%; text-align: right">52</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_982_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LandMember_zTZlFJawNyLa" style="width: 12%; text-align: right">—</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Land improvements</td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--LandImprovements_iI_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LandImprovementsMember_zZrNDLNffU4f" style="text-align: right" title="Land improvements">238</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--LandImprovements_iI_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LandImprovementsMember_zp5OFFKraj1a" style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Buildings</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_ecustom--Buildings_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--BuildingsMember_zA0EfWoo36aa" style="text-align: right" title="Buildings">5,650</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_ecustom--Buildings_iI_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--BuildingsMember_zXjjmgh1gES5" style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Leasehold improvements</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_zp88Ru6sT2Td" style="text-align: right">317</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_zjfTr7e5fp15" style="text-align: right">223</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Vehicles</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--VehiclesMember_zbwbqPpUm9X2" style="text-align: right">15</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--VehiclesMember_zKOsbmMG7K9h" style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Computers and related software</td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--TechnologyEquipmentMember_zkEVqDwZm7ne" style="text-align: right">30,890</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--TechnologyEquipmentMember_zaRaEs9CPfDh" style="text-align: right">1,140</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Machinery and equipment</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--MachineryAndEquipmentMember_zK2qdRwmsxxa" style="text-align: right">2,588</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--MachineryAndEquipmentMember_zNOVpnWR8ki" style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Office furniture and fixtures</td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--FurnitureAndFixturesMember_z2uRkmip6pMc" style="text-align: right">22</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--FurnitureAndFixturesMember_zpOb5Dhkteci" style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Construction in progress</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_989_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--ConstructionInProgressMember_zrNhCsAGRCJg" style="border-bottom: Black 1pt solid; text-align: right">7,590</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_d0_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--ConstructionInProgressMember_zwWq5028KI87" style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98C_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20211231_z9kUIKcNSQ78" style="text-align: right">47,362</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_983_eus-gaap--PropertyPlantAndEquipmentGross_iI_pn3n3_c20201231_zRQr5fzR3i0c" style="text-align: right">1,363</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Less: Accumulated depreciation</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_985_eus-gaap--AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_iNI_pn3n3_di_c20211231_zsNHbLizp8Zj" style="border-bottom: Black 1pt solid; text-align: right">(2,765</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_981_eus-gaap--AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_iNI_pn3n3_di_c20201231_zNvmawv7D7L1" style="border-bottom: Black 1pt solid; text-align: right">(641</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98A_eus-gaap--PropertyPlantAndEquipmentNet_iI_pn3n3_c20211231_z8k4rhuiILH1" style="border-bottom: Black 2.5pt double; text-align: right">44,597</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98C_eus-gaap--PropertyPlantAndEquipmentNet_iI_pn3n3_c20201231_zQ1KhbEm6hxi" style="border-bottom: Black 2.5pt double; text-align: right">722</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

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<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2021-12-31_us-gaap_LandMember" decimals="-3" unitRef="USD"> 52000 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2020-12-31_us-gaap_LandMember" decimals="-3" unitRef="USD"> 0 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:LandImprovements contextRef="AsOf2021-12-31_us-gaap_LandImprovementsMember" decimals="-3" unitRef="USD"> 238000 </us-gaap:LandImprovements>

<us-gaap:LandImprovements contextRef="AsOf2020-12-31_us-gaap_LandImprovementsMember" decimals="-3" unitRef="USD"> 0 </us-gaap:LandImprovements>

<mkty:Buildings contextRef="AsOf2021-12-31_custom_BuildingsMember" decimals="-3" unitRef="USD"> 5650000 </mkty:Buildings>

<mkty:Buildings contextRef="AsOf2020-12-31_custom_BuildingsMember" decimals="-3" unitRef="USD"> 0 </mkty:Buildings>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2021-12-31_us-gaap_LeaseholdImprovementsMember" decimals="-3" unitRef="USD"> 317000 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2020-12-31_us-gaap_LeaseholdImprovementsMember" decimals="-3" unitRef="USD"> 223000 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2021-12-31_us-gaap_VehiclesMember" decimals="-3" unitRef="USD"> 15000 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2020-12-31_us-gaap_VehiclesMember" decimals="-3" unitRef="USD"> 0 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2021-12-31_us-gaap_TechnologyEquipmentMember" decimals="-3" unitRef="USD"> 30890000 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2020-12-31_us-gaap_TechnologyEquipmentMember" decimals="-3" unitRef="USD"> 1140000 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2021-12-31_us-gaap_MachineryAndEquipmentMember" decimals="-3" unitRef="USD"> 2588000 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2020-12-31_us-gaap_MachineryAndEquipmentMember" decimals="-3" unitRef="USD"> 0 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2021-12-31_us-gaap_FurnitureAndFixturesMember" decimals="-3" unitRef="USD"> 22000 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2020-12-31_us-gaap_FurnitureAndFixturesMember" decimals="-3" unitRef="USD"> 0 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2021-12-31_us-gaap_ConstructionInProgressMember" decimals="-3" unitRef="USD"> 7590000 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2020-12-31_us-gaap_ConstructionInProgressMember" decimals="-3" unitRef="USD"> 0 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 47362000 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:PropertyPlantAndEquipmentGross contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 1363000 </us-gaap:PropertyPlantAndEquipmentGross>

<us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 2765000 </us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment>

<us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 641000 </us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment>

<us-gaap:PropertyPlantAndEquipmentNet contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 44597000 </us-gaap:PropertyPlantAndEquipmentNet>

<us-gaap:PropertyPlantAndEquipmentNet contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 722000 </us-gaap:PropertyPlantAndEquipmentNet>

<us-gaap:Depreciation contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 81000 </us-gaap:Depreciation>

<mkty:RepairAndMaintenanceExpenses contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 77000 </mkty:RepairAndMaintenanceExpenses>

<mkty:RepairAndMaintenanceExpenses contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 16000 </mkty:RepairAndMaintenanceExpenses>

<us-gaap:AssetAcquisitionTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">5.</td><td>Asset Acquisition</td></tr></table> As discussed above, on October 29, 2021, we completed the Soluna Callisto acquisition pursuant to an Agreement and Plan of Merger dated as of August 11, 2021, by and among the Company, SCI and Soluna Callisto (the “Merger Agreement”). The purpose of the transaction was for SCI to acquire substantially all of the assets (other than those assets physically located in Morocco) formerly held by HEL, which assets consisted of Soluna Callisto’s existing pipeline of certain cryptocurrency mining projects that HEL previously transferred to Soluna Callisto and to provide SCI with the opportunity to directly employ or retain the services of four individuals whose services it had retained through HEL prior to the merger. As a result of the merger, each share of common stock of Soluna Callisto issued and outstanding immediately prior to the effective time of the merger, other than shares owned by the Company or any of our subsidiaries, was cancelled and converted into the right to receive a proportionate share of up to 2,970,000 shares (the “Merger Shares”) of the Company’s common stock payable upon the achievement of certain milestones within five years after the effective date in the merger, as set forth in the merger agreement and the schedules thereto (the “Merger Consideration”). See Note 15 for further information regarding our relationship with HEL. The acquisition was accounted for, for purposes of U.S. GAAP, using the asset acquisition method of accounting under the ASC 805-50. We determined that we acquired in the acquisition a group of similar identifiable assets (primarily, the “strategic pipeline contract” of certain cryptocurrency mining projects), which it classified as an intangible asset for accounting purposes. As a result, our acquisition of the set of assets and activities constituted an asset acquisition, as opposed to a business acquisition, under ASC 805. ASC 805-50 provides that assets acquired in an asset acquisition are measured based on the costs of the acquisition, which is the consideration that the acquirer transfers to the seller, and includes direct transaction costs related to the acquisition. We include Soluna Callisto’s results of operations in our results of operations beginning on the effective date of the acquisition. Termination Consideration In connection with the Soluna Callisto acquisition, effective as of October 29, 2021, pursuant to the terms of a termination agreement dated as of August 11, 2021 by and among the Company, SCI, and HEL, on November 5, 2021, <span id="xdx_90D_eus-gaap--TerminationLoansDescription_c20210101__20211231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--SolunaMember_zZPSr8gfINS8" title="Description of termination consideration">SCI paid HEL $725,000 and SHI issued to HEL 150,000 shares of SHI common stock (the “Termination Shares”). SCI also reimbursed HEL $75,000 for transaction-related fees and expenses. SHI included the termination costs as part of asset acquisition per ASC 805-50. Based on the closing price of the SHI common stock on Nasdaq on November 5, 2021, SHI has valued the aggregate termination consideration at approximately $1.9 million. Merger Consideration The fair value of the Merger Consideration includes various assumptions, including those related to the allocation of the estimated value of the maximum number of Merger Shares (2,970,000) issuable as Merger Consideration, which issuance is contingent on the achievement of certain milestones of generating active Megawatts from Qualified Projects in which the Cost Requirement is satisfied within five years after the effective date of the merger, as set forth in the Merger Agreement and the schedules thereto, as set forth below. The Merger Consideration and the timing of the payment thereof is subject to the following qualifications and limitations: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt; color: #231F20"><tr style="vertical-align: top"> <td style="width: 48pt"/><td style="width: 24pt">1a)</td><td style="text-align: justify">Upon buyer achieving each one active MegaWatts (“Active MWs”) from the projects in which the cost requirement is satisfied, this will cause SHI to issue to HEL 19,800 shares for each one MW up to a maximum 150 Active MW.</td></tr></table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt; color: #231F20"><tr style="vertical-align: top"> <td style="width: 48pt"/><td style="width: 24pt">i.</td><td style="text-align: justify">If, on or before June 30, 2022, SCI or Soluna Callisto directly or indirectly achieves at least 50 active MWs from one or more of three current projects as set forth in the Merger Agreement that satisfy the Cost Requirement as defined within the Merger Agreement, then the Merger Shares will be issued at an accelerated rate of 29,700 Merger Shares for each of such first 50 Active MW, such that the Merger Shares in respect of the remaining 100 Active MWs (if any) will be issued at a reduced rate of 14,850 Merger Shares per Active MW;</td></tr></table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt; color: #231F20"><tr style="vertical-align: top"> <td style="width: 48pt"/><td style="width: 24pt">ii.</td><td style="text-align: justify">If, by June 30, 2023, SCI or Soluna Calisto fail to achieve directly or indirectly (other than pursuant to a Portfolio Acquisition) at least 50 Active MW from Projects that satisfy the Cost Requirement, then the maximum aggregate number of Merger Shares shall be reduced from 2,970,000 to 1,485,000;</td></tr></table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt; color: #231F20"><tr style="vertical-align: top"> <td style="width: 48pt"/><td style="width: 24pt">iii.</td><td style="text-align: justify; padding-right: 23.95pt">No Merger Shares will be issued to HEL without our prior written consent;</td></tr></table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt; color: #231F20"><tr style="vertical-align: top"> <td style="width: 48pt"/><td style="width: 24pt">iv.</td><td style="text-align: justify">Issuance of the Merger Shares will also be subject to the continued employment with or engagement by SCI or the surviving corporation of (A) John Belizaire and (B) at least two of Dipul Patel, Mohammed Larbi Loudiyi, (through ML&K Contractor), and Phillip Ng at the time that such Merger Shares are earned. If both (A) and (B) cease to be satisfied on or prior to the date that all Merger Shares are earned (such date, a “Trigger Date”), then “Qualified Projects” for purposes of determining Merger Shares shall only apply to those Qualified Projects that are in the pipeline as of the Trigger Date. For these purposes, if any such individual’s employment or service relationship with SCI is terminated without cause, as a result of his death or disability, or with good reason (as such terms are defined in the employment and consulting agreements), such individual shall be deemed to continue to be employed or engaged by SCI for these purposes;</td></tr></table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt; color: #231F20"><tr style="vertical-align: top"> <td style="width: 48pt"/><td style="width: 24pt">v.</td><td style="text-align: justify">If SHI or SCI consummates a Change of Control before the fifth anniversary of the date of the closing of the merger, then we will be obligated to issue all of the unissued Merger Shares (subject to (ii) and (iii) above). The Merger Agreement defines “Change of Control” as (A) the sale, exchange, transfer, or other disposition of all or substantially all of the assets of us or SCI, (B) our failure to continue to own (directly or indirectly) 100% of the outstanding equity securities of SCI and/or the surviving corporation, or (C) a merger, consolidation, or other transaction in which the holders of SHI’s, SCI’s, or the surviving corporation’s outstanding voting securities immediately prior to such transaction own, immediately after such transaction, securities representing less than <span id="xdx_90B_eus-gaap--SaleOfStockPercentageOfOwnershipAfterTransaction_pid_dp_uPure_c20210101__20211231__custom--EquityMethodInvestmentNonconsolidatedInvesteeAxis__custom--SolunaMember_zyMMf82BudNe" title="Transaction own share">50% of the voting power of the corporation or other entity surviving such transaction (excluding any such transaction principally for bona fide equity financing purposes, so long as, in the case of SHI or SCI (but not the surviving corporation) such transactions, individually and in the aggregate, do not result in a change in membership of such entity’s board of directors so that the persons who were members of the board of directors immediately prior to the first such transaction constitute less than 50% of the board membership at any time after such transaction(s) are consummated). Notwithstanding the foregoing, a transaction shall not constitute a Change of Control if its sole purpose is to change the state of SHI’s or SCI’s incorporation or to create a holding company that will be owned in the same proportions by the persons who held SHI’s or SCI’s securities immediately prior to such transaction; and</td></tr></table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt; color: #231F20"><tr style="vertical-align: top"> <td style="width: 47.95pt"/><td style="width: 24pt">vi.</td><td style="text-align: justify">if on any of the fifth anniversary of the effective time of the merger, June 30, 2022 or June 30, 2023, a facility has not become a Qualified Facility and therefore is not taken into consideration in the calculation of Active MW because any of the elements set forth in the definition of “Qualified Facility” as defined in the Merger Agreement have not been met for reasons beyond the reasonable control of SCI’s management team, but SCI’s management team is then actively engaged in the process of completing and is diligently pursuing the completion of the missing elements, then (A) the target dates set forth above shall be extended for an additional 90 days, and (B) additional extensions of time may be granted by the Board of Directors in its commercially reasonable discretion, in each case for the purpose of enabling SCI’s management team to complete the steps needed to qualify the facility as a Qualified Facility.</td></tr></table> The number of Merger Shares is also subject to customary anti-dilution adjustments in the event of any stock split, stock consolidation, stock dividend, or similar event involving the shares of our common stock. Based on the assessment performed, the fair value of the merger consideration as of October 29, 2021 was approximately $33.0 million. Based on management’s evaluation, management concluded that due to the high volatility of its share price, the low probability of not achieving the MW targets, and the fact the value associated with meeting the performance measures are not intended to drive the number of shares to be issued, but rather act as a proxy for and driver of share value, the monetary value of the obligation at inception is predominantly a function of equity shares. As such, the consideration will be treated as equity as ASC 480-10-25-14 is not applicable since the monetary value of the Merger Shares is not (1) fixed, or (2) dependent on (i) variations in something other than the fair value of the Company’s equity shares, or (ii) variations inversely related to changes in the fair value of the Company’s equity shares and is instead exposed to changes in the fair value of the Company’s share price, and as such does not represent a liability under ASC 480. The economic risks and characteristics of the share consideration are clearly and closely related to a residual equity interest since the underlying (i.e., the incremental shares of common stock delivered upon achievement of each MW target) will participate in the increase in value of the common equity of the Company, similar to a call option on common stock. Based on guidance in ASC 815-40-25-7 through 25-35, the share consideration is considered to be indexed to the Company’s stock and meets the additional criteria for equity classification.

</us-gaap:AssetAcquisitionTextBlock>

<us-gaap:SharesIssued contextRef="AsOf2021-10-29_custom_SolunaMember" decimals="INF" unitRef="Shares"> 2970000 </us-gaap:SharesIssued>

<us-gaap:TerminationLoansDescription contextRef="From2021-01-012021-12-31_custom_SolunaMember"> SCI paid HEL $725,000 and SHI issued to HEL 150,000 shares of SHI common stock (the “Termination Shares”). SCI also reimbursed HEL $75,000 for transaction-related fees and expenses. SHI included the termination costs as part of asset acquisition per ASC 805-50. Based on the closing price of the SHI common stock on Nasdaq on November 5, 2021, SHI has valued the aggregate termination consideration at approximately $1.9 million. </us-gaap:TerminationLoansDescription>

<mkty:MaximumNumberOfMergerShares contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Shares"> 2970000 </mkty:MaximumNumberOfMergerShares>

<mkty:MergerSharesReduce contextRef="AsOf2021-12-31_srt_MaximumMember" decimals="INF" unitRef="Shares"> 2970000 </mkty:MergerSharesReduce>

<mkty:MergerSharesReduce contextRef="AsOf2021-12-31_srt_MinimumMember" decimals="INF" unitRef="Shares"> 1485000 </mkty:MergerSharesReduce>

<mkty:EquityMethodInvestmentOwnershipPercentage1 contextRef="AsOf2021-12-31_custom_SolunaMember" decimals="INF" unitRef="Pure"> 1 </mkty:EquityMethodInvestmentOwnershipPercentage1>

<us-gaap:SaleOfStockPercentageOfOwnershipAfterTransaction contextRef="From2021-01-012021-12-31_custom_SolunaMember" decimals="INF" unitRef="Pure"> 0.50 </us-gaap:SaleOfStockPercentageOfOwnershipAfterTransaction>

<us-gaap:IntangibleAssetsDisclosureTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">6.</td><td>Intangible Assets</td></tr></table> Intangible assets consist of the following as of December 31, 2021: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Intangible Assets</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Accumulated Amortization</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Total</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-decoration: underline">For the year ended December 31, 2021</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 55%; text-align: left">Strategic pipeline contract</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--IntangibleAssetsCurrent_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--StrategicPipelineContractMember_zxSauPzen534" style="width: 12%; text-align: right" title="IntangibleAssets">46,885</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--StrategicPipelineContractMember_zqf1xR1HePk6" style="width: 12%; text-align: right" title="Accumulated Amortization">1,562</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_981_eus-gaap--OtherIntangibleAssetsNet_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--StrategicPipelineContractMember_zSQFKDA5rgxg" style="width: 12%; text-align: right" title="Total">45,323</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Assembled workforce</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--IntangibleAssetsCurrent_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--AssembledWorkforceMember_zx3nRfT96efc" style="text-align: right">500</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98C_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--AssembledWorkforceMember_zc3oU7svUaCf" style="text-align: right">17</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--OtherIntangibleAssetsNet_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--AssembledWorkforceMember_zQa7xNFFfOe" style="text-align: right">483</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1pt">Patents</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98D_eus-gaap--IntangibleAssetsCurrent_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_z0FxDpf5ISO6" style="border-bottom: Black 1pt solid; text-align: right">33</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_988_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_z4g3d3Zk7jvg" style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--OtherIntangibleAssetsNet_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zdla8jiXgSgb" style="border-bottom: Black 1pt solid; text-align: right">33</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98A_eus-gaap--IntangibleAssetsCurrent_iI_c20211231_z3buxMnjlBNg" style="border-bottom: Black 2.5pt double; text-align: right">47,418</td><td style="text-align: left; padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_981_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20211231_zoVs4P7tRZ8l" style="border-bottom: Black 2.5pt double; text-align: right">1,579</td><td style="text-align: left; padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98D_eus-gaap--OtherIntangibleAssetsNet_iI_c20211231_zkzTtVCApNYc" style="border-bottom: Black 2.5pt double; text-align: right">45,839</td><td style="text-align: left; padding-bottom: 2.5pt"> </td></tr> </table> There were no intangible assets or amortization expense as of December 31, 2020. Amortization expense for the year ended December 31, 2021 was approximately $1.6 million. The strategic pipeline contract relates to supply of a critical input to our digital mining business. The Company has analyzed this strategic pipeline contract similar to a permit for future benefit. The strategic pipeline contract relates to potential renewable energy datacenters that fit in the alignment of the Company structure to expand operations of the Company’s new focus in their business. The Company expects to record amortization expense of intangible assets over the next five years and thereafter as follows: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left">(Dollars in thousands)</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2" id="xdx_490_20211231_zcoZ92qZxFu" style="text-align: center"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td style="border-bottom: Black 1pt solid; font-weight: bold; text-align: left">Year</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr id="xdx_403_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_iI_zmcpk2i2osVf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 84%; text-align: left">2022</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">9,479</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_iI_zRFvSBDE3FX7" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">2023</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9,479</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_iI_zXOcaGAnf547" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">2024</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9,479</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_iI_zIlAx5omxus9" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">2025</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9,479</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_iI_zlHmgMpHTDZa" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">2026</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">7,899</td><td style="text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_iI_z2mmV4Px9NN9" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Thereafter</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">24</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_zPWpOcenYivi" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in; padding-bottom: 2.5pt">Total</td><td style="text-align: left; padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">45,839</td><td style="text-align: left; padding-bottom: 2.5pt"> </td></tr> </table>

</us-gaap:IntangibleAssetsDisclosureTextBlock>

<mkty:IntengibleAssetsTableTextBlock contextRef="From2021-01-01to2021-12-31">

Intangible assets consist of the following as of December 31, 2021: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Intangible Assets</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Accumulated Amortization</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Total</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-decoration: underline">For the year ended December 31, 2021</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 55%; text-align: left">Strategic pipeline contract</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--IntangibleAssetsCurrent_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--StrategicPipelineContractMember_zxSauPzen534" style="width: 12%; text-align: right" title="IntangibleAssets">46,885</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--StrategicPipelineContractMember_zqf1xR1HePk6" style="width: 12%; text-align: right" title="Accumulated Amortization">1,562</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_981_eus-gaap--OtherIntangibleAssetsNet_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--StrategicPipelineContractMember_zSQFKDA5rgxg" style="width: 12%; text-align: right" title="Total">45,323</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Assembled workforce</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--IntangibleAssetsCurrent_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--AssembledWorkforceMember_zx3nRfT96efc" style="text-align: right">500</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98C_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--AssembledWorkforceMember_zc3oU7svUaCf" style="text-align: right">17</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--OtherIntangibleAssetsNet_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--AssembledWorkforceMember_zQa7xNFFfOe" style="text-align: right">483</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1pt">Patents</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98D_eus-gaap--IntangibleAssetsCurrent_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_z0FxDpf5ISO6" style="border-bottom: Black 1pt solid; text-align: right">33</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_988_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_z4g3d3Zk7jvg" style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--OtherIntangibleAssetsNet_iI_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zdla8jiXgSgb" style="border-bottom: Black 1pt solid; text-align: right">33</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98A_eus-gaap--IntangibleAssetsCurrent_iI_c20211231_z3buxMnjlBNg" style="border-bottom: Black 2.5pt double; text-align: right">47,418</td><td style="text-align: left; padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_981_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_c20211231_zoVs4P7tRZ8l" style="border-bottom: Black 2.5pt double; text-align: right">1,579</td><td style="text-align: left; padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98D_eus-gaap--OtherIntangibleAssetsNet_iI_c20211231_zkzTtVCApNYc" style="border-bottom: Black 2.5pt double; text-align: right">45,839</td><td style="text-align: left; padding-bottom: 2.5pt"> </td></tr> </table>

</mkty:IntengibleAssetsTableTextBlock>

<us-gaap:IntangibleAssetsCurrent contextRef="AsOf2021-12-31_custom_StrategicPipelineContractMember" decimals="-3" unitRef="USD"> 46885000 </us-gaap:IntangibleAssetsCurrent>

<us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization contextRef="AsOf2021-12-31_custom_StrategicPipelineContractMember" decimals="-3" unitRef="USD"> 1562000 </us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization>

<us-gaap:OtherIntangibleAssetsNet contextRef="AsOf2021-12-31_custom_StrategicPipelineContractMember" decimals="-3" unitRef="USD"> 45323000 </us-gaap:OtherIntangibleAssetsNet>

<us-gaap:IntangibleAssetsCurrent contextRef="AsOf2021-12-31_custom_AssembledWorkforceMember" decimals="-3" unitRef="USD"> 500000 </us-gaap:IntangibleAssetsCurrent>

<us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization contextRef="AsOf2021-12-31_custom_AssembledWorkforceMember" decimals="-3" unitRef="USD"> 17000 </us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization>

<us-gaap:OtherIntangibleAssetsNet contextRef="AsOf2021-12-31_custom_AssembledWorkforceMember" decimals="-3" unitRef="USD"> 483000 </us-gaap:OtherIntangibleAssetsNet>

<us-gaap:IntangibleAssetsCurrent contextRef="AsOf2021-12-31_us-gaap_PatentsMember" decimals="-3" unitRef="USD"> 33000 </us-gaap:IntangibleAssetsCurrent>

<us-gaap:OtherIntangibleAssetsNet contextRef="AsOf2021-12-31_us-gaap_PatentsMember" decimals="-3" unitRef="USD"> 33000 </us-gaap:OtherIntangibleAssetsNet>

<us-gaap:IntangibleAssetsCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 47418000 </us-gaap:IntangibleAssetsCurrent>

<us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 1579000 </us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization>

<us-gaap:OtherIntangibleAssetsNet contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 45839000 </us-gaap:OtherIntangibleAssetsNet>

<us-gaap:OtherExpenses contextRef="From2021-01-01to2021-12-31" decimals="0" unitRef="USD"> 1600000 </us-gaap:OtherExpenses>

<mkty:AmortizationExpensesOfIntangibleAssetsTableTextBlock contextRef="From2021-01-01to2021-12-31">

The Company expects to record amortization expense of intangible assets over the next five years and thereafter as follows: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left">(Dollars in thousands)</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2" id="xdx_490_20211231_zcoZ92qZxFu" style="text-align: center"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td style="border-bottom: Black 1pt solid; font-weight: bold; text-align: left">Year</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr id="xdx_403_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_iI_zmcpk2i2osVf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 84%; text-align: left">2022</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">9,479</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_iI_zRFvSBDE3FX7" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">2023</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9,479</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_iI_zXOcaGAnf547" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">2024</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9,479</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_iI_zIlAx5omxus9" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">2025</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9,479</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_iI_zlHmgMpHTDZa" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">2026</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">7,899</td><td style="text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_iI_z2mmV4Px9NN9" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Thereafter</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">24</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_zPWpOcenYivi" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in; padding-bottom: 2.5pt">Total</td><td style="text-align: left; padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">45,839</td><td style="text-align: left; padding-bottom: 2.5pt"> </td></tr> </table>

</mkty:AmortizationExpensesOfIntangibleAssetsTableTextBlock>

<us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 9479000 </us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths>

<us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 9479000 </us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo>

<us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 9479000 </us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree>

<us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 9479000 </us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour>

<us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 7899000 </us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive>

<us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 24000 </us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive>

<us-gaap:FiniteLivedIntangibleAssetsNet contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 45839000 </us-gaap:FiniteLivedIntangibleAssetsNet>

<us-gaap:IncomeTaxDisclosureTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">7.</td><td>Income Taxes </td></tr></table> Income tax expense (benefit) for each of the years ended December 31 consists of the following: Schedule of income tax expense <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_499_20210101__20211231_zmP6437yh6Hk" style="border-bottom: Black 1pt solid; text-align: center">2021 </td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_49B_20200101__20201231_zJfZsOYm7Z65" style="border-bottom: Black 1pt solid; text-align: center">2020 </td><td style="padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6"> </td><td> </td></tr> <tr id="xdx_404_eus-gaap--CurrentFederalTaxExpenseBenefit_zOUqDBO9w5E8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Federal</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--CurrentStateAndLocalTaxExpenseBenefit_zls3d3dQyT83" style="vertical-align: bottom; background-color: White"> <td style="width: 70%">State</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">3</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">4</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--DeferredOtherTaxExpenseBenefit_zetyceOYqIxd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Deferred</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">41</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(336</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr id="xdx_40E_ecustom--IncomeTaxExpenseBenefit1_zef9fgzKsTz7" style="vertical-align: bottom; background-color: White"> <td>Total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">44</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(332</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> </table> <p id="xdx_89E_ecustom--ScheduleOfDeferredIncomeTaxExpenseTableTextBlock_zmeKQAcYZIOb" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">The significant components of deferred income tax expense (benefit) from operations for each of the years ended December 31 consists of the following: Schedule of deferred income tax expense <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_49E_20211231_zCq1XqGUKHec" style="border-bottom: Black 1pt solid; text-align: center">2021 </td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_49C_20201231_zASocV0eY0Q" style="border-bottom: Black 1pt solid; text-align: center">2020 </td><td style="padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6"> </td><td> </td></tr> <tr id="xdx_40C_ecustom--DeferredOtherTaxExpenseBenefit1_iI_zX0nDhomMSRi" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; text-align: left">Deferred tax (expense) benefit</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">(574</td><td style="width: 1%; text-align: left">)</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">(73</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_40A_eus-gaap--DeferredTaxAssetsOperatingLossCarryforwardsDomestic_iNI_di_zrtbILJttCw2" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Net operating loss carry forward</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(1,589</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">331</td><td style="text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--DeferredTaxAssetsValuationAllowance_iI_zqEHJRc7MKJ7" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Valuation allowance</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">2,204</td><td style="padding-bottom: 1pt; text-align: left"></td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(594</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr id="xdx_40E_ecustom--DeferredIncomeTaxExpenseBenefit12_iI_z1WpzB7xPUz4" style="vertical-align: bottom; background-color: White"> <td> Deferred tax benefit (expense)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">41</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(336</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> </table> <p id="xdx_898_eus-gaap--ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_zwIW2cuHkYFi" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">The Company’s effective income tax rate from operations differed from the Federal statutory rate for each of the years ended December 31 as follows: Schedule of effective income tax rate <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">2021 </td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">2020 </td><td style="padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; text-align: left">Federal statutory tax rate</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">21</td><td style="width: 1%; text-align: left">%</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">21</td><td style="width: 1%; text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Change in valuation allowance</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(35</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(39</td><td style="text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">State taxes, net of federal benefit</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Expiration of stock option</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Intangible amortization</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"></td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Change in UTP</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Federal tax benefits, R&D</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(3</td><td style="text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Other Deferred Adjustments</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">2</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(1</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Tax rate</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">1</td><td style="padding-bottom: 2.5pt; text-align: left">%</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">(21</td><td style="padding-bottom: 2.5pt; text-align: left">)%</td></tr> </table> Deferred Tax (Liabilities) Assets: <p id="xdx_890_eus-gaap--ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_zeQ36F4iE6a3" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Deferred tax (liabilities) assets are determined based on the temporary differences between the financial statement and tax bases of assets and liabilities as measured by the enacted tax rates. Temporary differences, net operating loss carryforwards and tax credit carryforwards that give rise to deferred tax assets and liabilities are summarized as follows as of December 31: Schedule of deferred tax assets <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left; padding-left: 0in">(Dollars in thousands)</td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_498_20211231_zTGcnJn1hJa7" style="border-bottom: Black 1pt solid; text-align: center">2021 </td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_49E_20201231_zrYoU3G1cV45" style="border-bottom: Black 1pt solid; text-align: center">2020 </td><td style="padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left; padding-left: 0.125in"> </td><td> </td> <td colspan="6" style="text-align: center"> </td><td> </td></tr> <tr id="xdx_408_eus-gaap--DeferredTaxAssetsGrossAbstract_iB_zD3CvwN8QxP5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0in">Deferred tax assets:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--DeferredTaxAssetsInventory_iI_z9lqLfgqR0wj" style="vertical-align: bottom; background-color: White"> <td style="width: 70%; text-align: left; padding-left: 0.125in">Vacation accrual</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">—</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">3</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_405_ecustom--DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsRelatedParty_iI_zDoJg1vF5MX8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in">Allowance for related party note receivable</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">76</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">69</td><td style="text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--DeferredTaxAssetsOperatingLossCarryforwards_iI_zOvZOzs5Jz42" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-left: 0.125in">Net operating loss</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">11,777</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">10,187</td><td style="text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--DeferredTaxAssetsPropertyPlantAndEquipment_iNI_di_ztC3gyUKLjG" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in">Property, plant and equipment</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"/><td> </td> <td style="text-align: left"> </td><td style="text-align: right">6</td><td style="text-align: left"/></tr> <tr id="xdx_409_eus-gaap--DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_iI_zZoBCYIPwWC1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-left: 0.125in">Stock options</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">278</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">31</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--DeferredTaxAssetsInProcessResearchAndDevelopment_iI_z3tqPFSgdWPl" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in">Research and development tax credit</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">144</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">120</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--DeferredTaxAssetsGross_iI_zrABH0eEjlti" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-left: 0.125in"> Deferred tax assets</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">12,275</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">10,416</td><td style="text-align: left"> </td></tr> <tr id="xdx_404_ecustom--DeferredTaxAssetsValuationAllowance1_iNI_di_zgCQIFlHMhRe" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Valuation allowance</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(11,921</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(9,717</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr id="xdx_401_eus-gaap--DeferredTaxAssetsNet_iI_zPQiiXGVBEbi" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Deferred tax assets, net of valuation allowance</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">354</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">699</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--DeferredTaxLiabilitiesAbstract_iB_zl5pDVps2dGi" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Deferred tax liabilities:</td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--DeferredTaxLiabilitiesPropertyPlantAndEquipment_iI_zYqxt5ZWUvwc" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in">Property, plant and equipment</td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right">(61</td><td style="text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"> —</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_iI_zDmJslH5Ghqh" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in">Intangibles</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(10,570</td><td style="text-align: left; padding-bottom: 1pt">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--DeferredIncomeTaxLiabilities_iI_zWvnX7o6puQg" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.25in">Deferred tax liabilities</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(10,631</td><td style="text-align: left; padding-bottom: 1pt">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40C_ecustom--DeferredTaxLiabilities1_iNI_di_zGIMX6zyVOvg" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Deferred tax (liabilities) assets</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(10,277</td><td style="text-align: left; padding-bottom: 2.5pt">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">699</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> In connection with the strategic contract pipeline acquired in the Soluna Callisto acquisition as further discussed in Note 6, ASC 740-10-25-51 requires the recognition of a deferred tax impact of acquiring an asset in a transaction that is not a business combination when the amount paid exceeds the tax basis on the acquisition date. As such, the Company is required to adjust the value of the strategic contract pipeline by approximately $10.9 million and this amount will be amortized over the life of the asset. Valuation Allowance: The Company believes that the accounting estimate for the valuation of deferred tax assets is a critical accounting estimate because judgment is required in assessing the likely future tax consequences of events that have been recognized in our financial statements or tax returns. The Company based the estimate of deferred tax assets and liabilities on current tax laws and rates and, in certain cases, business plans and other expectations about future outcomes. As a result of its assessment in 2021, the Company increased its valuation allowance against its deferred tax assets. The increase in the valuation allowance caused incremental tax expense of $2.2 million to be recognized in 2021. The increase of the valuation allowance was based upon the uncertainty surrounding the Company’s projected future taxable income, causing the Company to evaluate what portion of the Company’s deferred tax assets it believes are more likely than not to be realized. The Company has determined that it will not generate sufficient levels of pre-tax earnings in the future to realize the deferred tax assets relating to net operating loss carryforwards and research and development credit carryforwards recorded on the balance sheet as of December 31, 2021. Taking into consideration existing levels of permanent differences, non-deductible expenses and the reversal of significant temporary differences, the Company has determined that all other deferred tax assets recorded on the balance sheet as of December 31, 2021, will be fully realized. The valuation allowance at December 31, 2021 and 2020 was $11.9 million and $9.7 million, respectively. Activity in the valuation allowance for deferred tax assets is as follows as of December 31: Schedule of deferred tax asset valuation allowance <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_493_20210101__20211231_zwc54h3r5q3k" style="border-bottom: Black 1pt solid; text-align: center">2021 </td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_493_20200101__20201231_zIsEqGb982fa" style="border-bottom: Black 1pt solid; text-align: center">2020 </td><td style="padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6"> </td><td> </td></tr> <tr id="xdx_401_ecustom--DeferredTaxAssetsValuationAllowanceBegining_iS_zp5ZuNHKK0m6" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; text-align: left">Valuation allowance, beginning of year</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">9,717</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">10,310</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_401_ecustom--DeferredTaxAssetsValuationAllowanceRelatedPartyNoteReceivable_iI_zbAgFIscCuid" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Allowance for related party note receivable</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(65</td><td style="text-align: left">) </td></tr> <tr id="xdx_409_ecustom--DeferredTaxAssetsValuationAllowanceInventory_zXKuzLTbqCPd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Inventory</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1</td><td style="text-align: left"></td></tr> <tr id="xdx_40E_ecustom--DeferredTaxAssetsValuationAllowanceInventory1_zVh9XqXOnZN1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Net operating (loss) income</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,179</td><td style="text-align: left"></td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(406</td><td style="text-align: left">)</td></tr> <tr id="xdx_40A_ecustom--DeferredTaxAssetsValuationAllowancePropertyPlantEquipment_zdxLoOHtjLwf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Property, plant and equipment</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(27</td><td style="text-align: left">)</td></tr> <tr id="xdx_40E_ecustom--DeferredTaxAssetsValuationAllowanceStockOptions_zD2v0zZ6Uc4h" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Stock options</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(57</td><td style="text-align: left">)</td></tr> <tr id="xdx_40D_ecustom--DeferredTaxAssetsValuationAllowanceResearchAndDevelopmentCredit_zyDfCGmBmnl7" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Research and development credit</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">25</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(32</td><td style="text-align: left">)</td></tr> <tr id="xdx_407_ecustom--DeferredTaxAssetsValuationAllowanceWarrantyAndOtherSalesObligations_z2mGf1s1hBXe" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Warranty and other sales obligations</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">13</td><td style="text-align: left"></td></tr> <tr id="xdx_402_ecustom--DeferredTaxAssetsValuationAllowanceDeferredRevenue_z4WxGoA067N8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Deferred revenue</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(10</td><td style="text-align: left">) </td></tr> <tr id="xdx_40E_ecustom--DeferredTaxAssetsValuationAllowanceAccruedCompensation_zMO05JEC1Omg" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Accrued compensation</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(10</td><td style="padding-bottom: 1pt; text-align: left">) </td></tr> <tr id="xdx_407_ecustom--DeferredTaxAssetsNet1_iE_z1dawOTFGtG3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Valuation allowance, end of year</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">11,921</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">9,717</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Net operating losses: At December 31, 2021, the Company has unused Federal net operating loss carryforwards of approximately $55 million. Of these, none will expire in 2021, $52 million expiring through 2035 and the remainder being carried forward indefinitely. The Company’s and/or its subsidiaries’ ability to utilize their net operating loss carryforwards may be significantly limited by Section 382 of the IRC of 1986, as amended, if the Company or any of its subsidiaries undergoes an “ownership change” as a result of changes in the ownership of the Company’s or its subsidiaries’ outstanding stock pursuant to the exercise of the warrants or otherwise. Unrecognized tax benefits: The Company has unrecognized tax benefits of $0 and $710 thousand at December 31, 2021 and 2020. These unrecognized tax benefits relate to former subsidiaries of the Company and a prior investment in a partnership. Additionally, the Company does not have uncertain tax positions that it expects will increase or decrease within twelve months of this reporting date. The Company recognizes interest and penalties related to uncertain tax positions as a component of tax expense. The Company did not recognize any interest or penalties in 2021 and 2020. The Company files income tax returns, including returns for its subsidiaries, with federal and state jurisdictions. The Company is no longer subject to IRS or state examinations for any periods prior to 2018, although carryforward attributes that were generated prior to 2018 may still be adjusted upon examination by the IRS if they either have been or will be used in a future period.

</us-gaap:IncomeTaxDisclosureTextBlock>

<us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock contextRef="From2021-01-01to2021-12-31">

Income tax expense (benefit) for each of the years ended December 31 consists of the following: Schedule of income tax expense <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_499_20210101__20211231_zmP6437yh6Hk" style="border-bottom: Black 1pt solid; text-align: center">2021 </td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_49B_20200101__20201231_zJfZsOYm7Z65" style="border-bottom: Black 1pt solid; text-align: center">2020 </td><td style="padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6"> </td><td> </td></tr> <tr id="xdx_404_eus-gaap--CurrentFederalTaxExpenseBenefit_zOUqDBO9w5E8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Federal</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--CurrentStateAndLocalTaxExpenseBenefit_zls3d3dQyT83" style="vertical-align: bottom; background-color: White"> <td style="width: 70%">State</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">3</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">4</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--DeferredOtherTaxExpenseBenefit_zetyceOYqIxd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Deferred</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">41</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(336</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr id="xdx_40E_ecustom--IncomeTaxExpenseBenefit1_zef9fgzKsTz7" style="vertical-align: bottom; background-color: White"> <td>Total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">44</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(332</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> </table>

</us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock>

<us-gaap:CurrentStateAndLocalTaxExpenseBenefit contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 3000 </us-gaap:CurrentStateAndLocalTaxExpenseBenefit>

<us-gaap:CurrentStateAndLocalTaxExpenseBenefit contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 4000 </us-gaap:CurrentStateAndLocalTaxExpenseBenefit>

<us-gaap:DeferredOtherTaxExpenseBenefit contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 41000 </us-gaap:DeferredOtherTaxExpenseBenefit>

<us-gaap:DeferredOtherTaxExpenseBenefit contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -336000 </us-gaap:DeferredOtherTaxExpenseBenefit>

<mkty:IncomeTaxExpenseBenefit1 contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 44000 </mkty:IncomeTaxExpenseBenefit1>

<mkty:IncomeTaxExpenseBenefit1 contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -332000 </mkty:IncomeTaxExpenseBenefit1>

<mkty:ScheduleOfDeferredIncomeTaxExpenseTableTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_89E_ecustom--ScheduleOfDeferredIncomeTaxExpenseTableTextBlock_zmeKQAcYZIOb" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">The significant components of deferred income tax expense (benefit) from operations for each of the years ended December 31 consists of the following: Schedule of deferred income tax expense <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_49E_20211231_zCq1XqGUKHec" style="border-bottom: Black 1pt solid; text-align: center">2021 </td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_49C_20201231_zASocV0eY0Q" style="border-bottom: Black 1pt solid; text-align: center">2020 </td><td style="padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6"> </td><td> </td></tr> <tr id="xdx_40C_ecustom--DeferredOtherTaxExpenseBenefit1_iI_zX0nDhomMSRi" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; text-align: left">Deferred tax (expense) benefit</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">(574</td><td style="width: 1%; text-align: left">)</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">(73</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_40A_eus-gaap--DeferredTaxAssetsOperatingLossCarryforwardsDomestic_iNI_di_zrtbILJttCw2" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Net operating loss carry forward</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(1,589</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">331</td><td style="text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--DeferredTaxAssetsValuationAllowance_iI_zqEHJRc7MKJ7" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Valuation allowance</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">2,204</td><td style="padding-bottom: 1pt; text-align: left"></td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(594</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr id="xdx_40E_ecustom--DeferredIncomeTaxExpenseBenefit12_iI_z1WpzB7xPUz4" style="vertical-align: bottom; background-color: White"> <td> Deferred tax benefit (expense)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">41</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(336</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> </table>

</mkty:ScheduleOfDeferredIncomeTaxExpenseTableTextBlock>

<mkty:DeferredOtherTaxExpenseBenefit1 contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> -574000 </mkty:DeferredOtherTaxExpenseBenefit1>

<mkty:DeferredOtherTaxExpenseBenefit1 contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> -73000 </mkty:DeferredOtherTaxExpenseBenefit1>

<us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 1589000 </us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic>

<us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> -331000 </us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic>

<us-gaap:DeferredTaxAssetsValuationAllowance contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 2204000 </us-gaap:DeferredTaxAssetsValuationAllowance>

<us-gaap:DeferredTaxAssetsValuationAllowance contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> -594000 </us-gaap:DeferredTaxAssetsValuationAllowance>

<mkty:DeferredIncomeTaxExpenseBenefit12 contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 41000 </mkty:DeferredIncomeTaxExpenseBenefit12>

<mkty:DeferredIncomeTaxExpenseBenefit12 contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> -336000 </mkty:DeferredIncomeTaxExpenseBenefit12>

<us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_898_eus-gaap--ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_zwIW2cuHkYFi" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">The Company’s effective income tax rate from operations differed from the Federal statutory rate for each of the years ended December 31 as follows: Schedule of effective income tax rate <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">2021 </td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; text-align: center">2020 </td><td style="padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; text-align: left">Federal statutory tax rate</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">21</td><td style="width: 1%; text-align: left">%</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">21</td><td style="width: 1%; text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Change in valuation allowance</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(35</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(39</td><td style="text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">State taxes, net of federal benefit</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Expiration of stock option</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Intangible amortization</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"></td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Change in UTP</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Federal tax benefits, R&D</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(3</td><td style="text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Other Deferred Adjustments</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">2</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(1</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Tax rate</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">1</td><td style="padding-bottom: 2.5pt; text-align: left">%</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">(21</td><td style="padding-bottom: 2.5pt; text-align: left">)%</td></tr> </table>

</us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock>

<us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 0.21 </us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate>

<us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate contextRef="From2020-01-012020-12-31" decimals="INF" unitRef="Pure"> 0.21 </us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate>

<us-gaap:EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 0.35 </us-gaap:EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance>

<us-gaap:EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance contextRef="From2020-01-012020-12-31" decimals="INF" unitRef="Pure"> 0.39 </us-gaap:EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance>

<us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 0.01 </us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes>

<us-gaap:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 0.02 </us-gaap:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost>

<us-gaap:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost contextRef="From2020-01-012020-12-31" decimals="INF" unitRef="Pure"> 0.01 </us-gaap:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost>

<mkty:ChangeInUTP contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 0.09 </mkty:ChangeInUTP>

<us-gaap:EffectiveIncomeTaxRateReconciliationTaxCreditsResearch contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 0.01 </us-gaap:EffectiveIncomeTaxRateReconciliationTaxCreditsResearch>

<us-gaap:EffectiveIncomeTaxRateReconciliationTaxCreditsResearch contextRef="From2020-01-012020-12-31" decimals="INF" unitRef="Pure"> 0.03 </us-gaap:EffectiveIncomeTaxRateReconciliationTaxCreditsResearch>

<us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 0.02 </us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments>

<us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments contextRef="From2020-01-012020-12-31" decimals="INF" unitRef="Pure"> 0.01 </us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments>

<us-gaap:EffectiveIncomeTaxRateContinuingOperations contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 0.01 </us-gaap:EffectiveIncomeTaxRateContinuingOperations>

<us-gaap:EffectiveIncomeTaxRateContinuingOperations contextRef="From2020-01-012020-12-31" decimals="INF" unitRef="Pure"> 0.21 </us-gaap:EffectiveIncomeTaxRateContinuingOperations>

<us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_890_eus-gaap--ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_zeQ36F4iE6a3" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">Deferred tax (liabilities) assets are determined based on the temporary differences between the financial statement and tax bases of assets and liabilities as measured by the enacted tax rates. Temporary differences, net operating loss carryforwards and tax credit carryforwards that give rise to deferred tax assets and liabilities are summarized as follows as of December 31: Schedule of deferred tax assets <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: left; padding-left: 0in">(Dollars in thousands)</td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_498_20211231_zTGcnJn1hJa7" style="border-bottom: Black 1pt solid; text-align: center">2021 </td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_49E_20201231_zrYoU3G1cV45" style="border-bottom: Black 1pt solid; text-align: center">2020 </td><td style="padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: left; padding-left: 0.125in"> </td><td> </td> <td colspan="6" style="text-align: center"> </td><td> </td></tr> <tr id="xdx_408_eus-gaap--DeferredTaxAssetsGrossAbstract_iB_zD3CvwN8QxP5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0in">Deferred tax assets:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--DeferredTaxAssetsInventory_iI_z9lqLfgqR0wj" style="vertical-align: bottom; background-color: White"> <td style="width: 70%; text-align: left; padding-left: 0.125in">Vacation accrual</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">—</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">3</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_405_ecustom--DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsRelatedParty_iI_zDoJg1vF5MX8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in">Allowance for related party note receivable</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">76</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">69</td><td style="text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--DeferredTaxAssetsOperatingLossCarryforwards_iI_zOvZOzs5Jz42" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-left: 0.125in">Net operating loss</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">11,777</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">10,187</td><td style="text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--DeferredTaxAssetsPropertyPlantAndEquipment_iNI_di_ztC3gyUKLjG" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in">Property, plant and equipment</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"/><td> </td> <td style="text-align: left"> </td><td style="text-align: right">6</td><td style="text-align: left"/></tr> <tr id="xdx_409_eus-gaap--DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_iI_zZoBCYIPwWC1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-left: 0.125in">Stock options</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">278</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">31</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--DeferredTaxAssetsInProcessResearchAndDevelopment_iI_z3tqPFSgdWPl" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in">Research and development tax credit</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">144</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">120</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--DeferredTaxAssetsGross_iI_zrABH0eEjlti" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-left: 0.125in"> Deferred tax assets</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">12,275</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">10,416</td><td style="text-align: left"> </td></tr> <tr id="xdx_404_ecustom--DeferredTaxAssetsValuationAllowance1_iNI_di_zgCQIFlHMhRe" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Valuation allowance</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(11,921</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(9,717</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr id="xdx_401_eus-gaap--DeferredTaxAssetsNet_iI_zPQiiXGVBEbi" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Deferred tax assets, net of valuation allowance</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">354</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">699</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--DeferredTaxLiabilitiesAbstract_iB_zl5pDVps2dGi" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Deferred tax liabilities:</td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--DeferredTaxLiabilitiesPropertyPlantAndEquipment_iI_zYqxt5ZWUvwc" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in">Property, plant and equipment</td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right">(61</td><td style="text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td style="text-align: right"> —</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_iI_zDmJslH5Ghqh" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in">Intangibles</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(10,570</td><td style="text-align: left; padding-bottom: 1pt">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40B_eus-gaap--DeferredIncomeTaxLiabilities_iI_zWvnX7o6puQg" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.25in">Deferred tax liabilities</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(10,631</td><td style="text-align: left; padding-bottom: 1pt">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40C_ecustom--DeferredTaxLiabilities1_iNI_di_zGIMX6zyVOvg" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Deferred tax (liabilities) assets</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(10,277</td><td style="text-align: left; padding-bottom: 2.5pt">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">699</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> In connection with the strategic contract pipeline acquired in the Soluna Callisto acquisition as further discussed in Note 6, ASC 740-10-25-51 requires the recognition of a deferred tax impact of acquiring an asset in a transaction that is not a business combination when the amount paid exceeds the tax basis on the acquisition date. As such, the Company is required to adjust the value of the strategic contract pipeline by approximately $10.9 million and this amount will be amortized over the life of the asset.

</us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock>

<us-gaap:DeferredTaxAssetsInventory contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 3000 </us-gaap:DeferredTaxAssetsInventory>

<mkty:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsRelatedParty contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 76000 </mkty:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsRelatedParty>

<mkty:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsRelatedParty contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 69000 </mkty:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccountsRelatedParty>

<us-gaap:DeferredTaxAssetsOperatingLossCarryforwards contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 11777000 </us-gaap:DeferredTaxAssetsOperatingLossCarryforwards>

<us-gaap:DeferredTaxAssetsOperatingLossCarryforwards contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 10187000 </us-gaap:DeferredTaxAssetsOperatingLossCarryforwards>

<us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> -6000 </us-gaap:DeferredTaxAssetsPropertyPlantAndEquipment>

<us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 278000 </us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost>

<us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 31000 </us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost>

<us-gaap:DeferredTaxAssetsInProcessResearchAndDevelopment contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 144000 </us-gaap:DeferredTaxAssetsInProcessResearchAndDevelopment>

<us-gaap:DeferredTaxAssetsInProcessResearchAndDevelopment contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 120000 </us-gaap:DeferredTaxAssetsInProcessResearchAndDevelopment>

<us-gaap:DeferredTaxAssetsGross contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 12275000 </us-gaap:DeferredTaxAssetsGross>

<us-gaap:DeferredTaxAssetsGross contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 10416000 </us-gaap:DeferredTaxAssetsGross>

<mkty:DeferredTaxAssetsValuationAllowance1 contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 11921000 </mkty:DeferredTaxAssetsValuationAllowance1>

<mkty:DeferredTaxAssetsValuationAllowance1 contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 9717000 </mkty:DeferredTaxAssetsValuationAllowance1>

<us-gaap:DeferredTaxAssetsNet contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 354000 </us-gaap:DeferredTaxAssetsNet>

<us-gaap:DeferredTaxAssetsNet contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 699000 </us-gaap:DeferredTaxAssetsNet>

<us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> -61000 </us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment>

<us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> -10570000 </us-gaap:DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets>

<us-gaap:DeferredIncomeTaxLiabilities contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> -10631000 </us-gaap:DeferredIncomeTaxLiabilities>

<mkty:DeferredTaxLiabilities1 contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 10277000 </mkty:DeferredTaxLiabilities1>

<mkty:DeferredTaxLiabilities1 contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> -699000 </mkty:DeferredTaxLiabilities1>

<us-gaap:ServicingAssetAtAmortizedValue contextRef="AsOf2021-12-31" decimals="0" unitRef="USD"> 10900000 </us-gaap:ServicingAssetAtAmortizedValue>

<mkty:IncrementalTaxBenefit contextRef="AsOf2021-12-31" decimals="0" unitRef="USD"> 2200000 </mkty:IncrementalTaxBenefit>

<us-gaap:SummaryOfValuationAllowanceTextBlock contextRef="From2021-01-01to2021-12-31">

The valuation allowance at December 31, 2021 and 2020 was $11.9 million and $9.7 million, respectively. Activity in the valuation allowance for deferred tax assets is as follows as of December 31: Schedule of deferred tax asset valuation allowance <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_493_20210101__20211231_zwc54h3r5q3k" style="border-bottom: Black 1pt solid; text-align: center">2021 </td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_493_20200101__20201231_zIsEqGb982fa" style="border-bottom: Black 1pt solid; text-align: center">2020 </td><td style="padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6"> </td><td> </td></tr> <tr id="xdx_401_ecustom--DeferredTaxAssetsValuationAllowanceBegining_iS_zp5ZuNHKK0m6" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; text-align: left">Valuation allowance, beginning of year</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">9,717</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">10,310</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_401_ecustom--DeferredTaxAssetsValuationAllowanceRelatedPartyNoteReceivable_iI_zbAgFIscCuid" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Allowance for related party note receivable</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(65</td><td style="text-align: left">) </td></tr> <tr id="xdx_409_ecustom--DeferredTaxAssetsValuationAllowanceInventory_zXKuzLTbqCPd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Inventory</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1</td><td style="text-align: left"></td></tr> <tr id="xdx_40E_ecustom--DeferredTaxAssetsValuationAllowanceInventory1_zVh9XqXOnZN1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Net operating (loss) income</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,179</td><td style="text-align: left"></td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(406</td><td style="text-align: left">)</td></tr> <tr id="xdx_40A_ecustom--DeferredTaxAssetsValuationAllowancePropertyPlantEquipment_zdxLoOHtjLwf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Property, plant and equipment</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(27</td><td style="text-align: left">)</td></tr> <tr id="xdx_40E_ecustom--DeferredTaxAssetsValuationAllowanceStockOptions_zD2v0zZ6Uc4h" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Stock options</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(57</td><td style="text-align: left">)</td></tr> <tr id="xdx_40D_ecustom--DeferredTaxAssetsValuationAllowanceResearchAndDevelopmentCredit_zyDfCGmBmnl7" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Research and development credit</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">25</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(32</td><td style="text-align: left">)</td></tr> <tr id="xdx_407_ecustom--DeferredTaxAssetsValuationAllowanceWarrantyAndOtherSalesObligations_z2mGf1s1hBXe" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Warranty and other sales obligations</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">13</td><td style="text-align: left"></td></tr> <tr id="xdx_402_ecustom--DeferredTaxAssetsValuationAllowanceDeferredRevenue_z4WxGoA067N8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Deferred revenue</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(10</td><td style="text-align: left">) </td></tr> <tr id="xdx_40E_ecustom--DeferredTaxAssetsValuationAllowanceAccruedCompensation_zMO05JEC1Omg" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Accrued compensation</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(10</td><td style="padding-bottom: 1pt; text-align: left">) </td></tr> <tr id="xdx_407_ecustom--DeferredTaxAssetsNet1_iE_z1dawOTFGtG3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Valuation allowance, end of year</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">11,921</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">9,717</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</us-gaap:SummaryOfValuationAllowanceTextBlock>

<mkty:DeferredTaxAssetsValuationAllowanceBegining contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 9717000 </mkty:DeferredTaxAssetsValuationAllowanceBegining>

<mkty:DeferredTaxAssetsValuationAllowanceBegining contextRef="AsOf2019-12-31" decimals="-3" unitRef="USD"> 10310000 </mkty:DeferredTaxAssetsValuationAllowanceBegining>

<mkty:DeferredTaxAssetsValuationAllowanceRelatedPartyNoteReceivable contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -65000 </mkty:DeferredTaxAssetsValuationAllowanceRelatedPartyNoteReceivable>

<mkty:DeferredTaxAssetsValuationAllowanceInventory contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 1000 </mkty:DeferredTaxAssetsValuationAllowanceInventory>

<mkty:DeferredTaxAssetsValuationAllowanceInventory1 contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 2179000 </mkty:DeferredTaxAssetsValuationAllowanceInventory1>

<mkty:DeferredTaxAssetsValuationAllowanceInventory1 contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -406000 </mkty:DeferredTaxAssetsValuationAllowanceInventory1>

<mkty:DeferredTaxAssetsValuationAllowancePropertyPlantEquipment contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -27000 </mkty:DeferredTaxAssetsValuationAllowancePropertyPlantEquipment>

<mkty:DeferredTaxAssetsValuationAllowanceStockOptions contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -57000 </mkty:DeferredTaxAssetsValuationAllowanceStockOptions>

<mkty:DeferredTaxAssetsValuationAllowanceResearchAndDevelopmentCredit contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 25000 </mkty:DeferredTaxAssetsValuationAllowanceResearchAndDevelopmentCredit>

<mkty:DeferredTaxAssetsValuationAllowanceResearchAndDevelopmentCredit contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -32000 </mkty:DeferredTaxAssetsValuationAllowanceResearchAndDevelopmentCredit>

<mkty:DeferredTaxAssetsValuationAllowanceWarrantyAndOtherSalesObligations contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 13000 </mkty:DeferredTaxAssetsValuationAllowanceWarrantyAndOtherSalesObligations>

<mkty:DeferredTaxAssetsValuationAllowanceDeferredRevenue contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -10000 </mkty:DeferredTaxAssetsValuationAllowanceDeferredRevenue>

<mkty:DeferredTaxAssetsValuationAllowanceAccruedCompensation contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -10000 </mkty:DeferredTaxAssetsValuationAllowanceAccruedCompensation>

<mkty:DeferredTaxAssetsNet1 contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 11921000 </mkty:DeferredTaxAssetsNet1>

<mkty:DeferredTaxAssetsNet1 contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 9717000 </mkty:DeferredTaxAssetsNet1>

<us-gaap:OperatingLossCarryforwards contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 55000 </us-gaap:OperatingLossCarryforwards>

<us-gaap:UnrecognizedTaxBenefits contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 0 </us-gaap:UnrecognizedTaxBenefits>

<us-gaap:UnrecognizedTaxBenefits contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 710000 </us-gaap:UnrecognizedTaxBenefits>

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<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">8.</td><td>Accrued Liabilities</td></tr></table> Accrued liabilities consist of the following at: Schedule of accrued liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_499_20211231_zhe0fSmogOS6" style="border-bottom: Black 1pt solid; text-align: center">December 31, 2021</td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_497_20201231_zGC2PDg5ZSBi" style="border-bottom: Black 1pt solid; text-align: center">December 31, 2020</td><td style="padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr id="xdx_403_eus-gaap--EmployeeRelatedLiabilitiesCurrent_iI_z9Wd4ldce0Ie" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; text-align: left">Salaries, wages and related expenses</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">611</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">70</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--AccountsPayableRelatedPartiesCurrent_iI_z7hGy2niVXnc" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Liability to shareholders for previous acquisition</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">363</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">363</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--AccruedProfessionalFeesCurrent_iI_zAYxvSP6y5di" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Legal, audit, tax and professional fees</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">363</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">158</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_ecustom--SalesTaxAccrual_zE89fWVDRvnj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Sales tax accrual</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">248</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">-</td><td style="text-align: left"> </td></tr> <tr id="xdx_404_ecustom--DevelopmentFees_z7mapiGVwaO5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Development fees</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">373</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">-</td><td style="text-align: left"> </td></tr> <tr id="xdx_402_ecustom--HostingAndUtilityFees_z57dCCsslkkl" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Hosting and utility fees</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">626</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">-</td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--AccountsPayableOtherCurrent_iI_z8vlruUwB77g" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 1pt">Other</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">275</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">72</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--AccruedLiabilitiesCurrent_iI_zFOG5P09fUT9" style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 2.5pt"> Total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,859</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">663</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

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<us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock contextRef="From2021-01-01to2021-12-31">

Accrued liabilities consist of the following at: Schedule of accrued liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_499_20211231_zhe0fSmogOS6" style="border-bottom: Black 1pt solid; text-align: center">December 31, 2021</td><td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_497_20201231_zGC2PDg5ZSBi" style="border-bottom: Black 1pt solid; text-align: center">December 31, 2020</td><td style="padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr id="xdx_403_eus-gaap--EmployeeRelatedLiabilitiesCurrent_iI_z9Wd4ldce0Ie" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; text-align: left">Salaries, wages and related expenses</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">611</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">70</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--AccountsPayableRelatedPartiesCurrent_iI_z7hGy2niVXnc" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Liability to shareholders for previous acquisition</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">363</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">363</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--AccruedProfessionalFeesCurrent_iI_zAYxvSP6y5di" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Legal, audit, tax and professional fees</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">363</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">158</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_ecustom--SalesTaxAccrual_zE89fWVDRvnj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Sales tax accrual</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">248</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">-</td><td style="text-align: left"> </td></tr> <tr id="xdx_404_ecustom--DevelopmentFees_z7mapiGVwaO5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Development fees</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">373</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">-</td><td style="text-align: left"> </td></tr> <tr id="xdx_402_ecustom--HostingAndUtilityFees_z57dCCsslkkl" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Hosting and utility fees</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">626</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">-</td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--AccountsPayableOtherCurrent_iI_z8vlruUwB77g" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 1pt">Other</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">275</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">72</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--AccruedLiabilitiesCurrent_iI_zFOG5P09fUT9" style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 2.5pt"> Total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,859</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">663</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

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<us-gaap:EmployeeRelatedLiabilitiesCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 611000 </us-gaap:EmployeeRelatedLiabilitiesCurrent>

<us-gaap:EmployeeRelatedLiabilitiesCurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 70000 </us-gaap:EmployeeRelatedLiabilitiesCurrent>

<us-gaap:AccountsPayableRelatedPartiesCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 363000 </us-gaap:AccountsPayableRelatedPartiesCurrent>

<us-gaap:AccountsPayableRelatedPartiesCurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 363000 </us-gaap:AccountsPayableRelatedPartiesCurrent>

<us-gaap:AccruedProfessionalFeesCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 363000 </us-gaap:AccruedProfessionalFeesCurrent>

<us-gaap:AccruedProfessionalFeesCurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 158000 </us-gaap:AccruedProfessionalFeesCurrent>

<mkty:SalesTaxAccrual contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 248000 </mkty:SalesTaxAccrual>

<mkty:DevelopmentFees contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 373000 </mkty:DevelopmentFees>

<mkty:HostingAndUtilityFees contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 626000 </mkty:HostingAndUtilityFees>

<us-gaap:AccountsPayableOtherCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 275000 </us-gaap:AccountsPayableOtherCurrent>

<us-gaap:AccountsPayableOtherCurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 72000 </us-gaap:AccountsPayableOtherCurrent>

<us-gaap:AccruedLiabilitiesCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 2859000 </us-gaap:AccruedLiabilitiesCurrent>

<us-gaap:AccruedLiabilitiesCurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 663000 </us-gaap:AccruedLiabilitiesCurrent>

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<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">9.</td><td>Debt</td></tr></table> Convertible Notes Debt consists of the following (dollar in thousands): <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td style="text-align: center">Maturity Date</td><td> </td> <td colspan="2" style="text-align: center">Interest Rate</td><td> </td><td> </td> <td colspan="2" style="text-align: center">December 31, 2021</td><td> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 57%; text-align: left">Convertible Note</td><td style="width: 1%"> </td> <td style="width: 12%; padding-left: 5.4pt; text-align: center">October 25, 2022</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">8</td><td style="width: 1%; text-align: left">%</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--DeferredFinanceCostsNoncurrentGross_iI_pn3n3_c20211231_z0ECRWcjLUa3" style="width: 12%; text-align: right" title="Convertible notes">14,927</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Less: debt discount</td><td> </td> <td style="padding-left: 5.4pt"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--AccumulatedAmortizationOfNoncurrentDeferredFinanceCosts_iI_pn3n3_c20211231_zobBaQ3ZVdB5" style="text-align: right" title="Less: debt discount">967</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Less: discount from issuance of warrants</td><td> </td> <td style="padding-left: 5.4pt"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_ecustom--DebtInstrumentLessdiscountFromIssuanceOfWarrants_iI_pn3n3_c20211231_zzZpIqrb6KR9" style="text-align: right" title="Less: discount from issuance of warrants">5,747</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Less: debt issuance costs</td><td style="padding-bottom: 1pt"> </td> <td style="padding-left: 5.4pt; padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td style="text-align: left; padding-bottom: 1pt"> </td><td style="text-align: right"> </td><td style="text-align: left; padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98D_eus-gaap--DeferredFinanceCostsGross_iI_pn3n3_c20211231_zBM6x3MCswZi" style="border-bottom: Black 1pt solid; text-align: right" title="Less: debt issuance costs">1,092</td><td style="text-align: left; padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total convertible notes, net of discount and issuance costs</td><td style="padding-bottom: 2.5pt"> </td> <td style="padding-left: 5.4pt; padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left; padding-bottom: 2.5pt"> </td><td style="text-align: right"> </td><td style="text-align: left; padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_982_eus-gaap--DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_iI_pn3n3_c20211231_zWbokQL2hbra" style="border-bottom: Black 2.5pt double; text-align: right" title="Total convertible notes, net of discount and issuance costs">7,121</td><td style="text-align: left; padding-bottom: 2.5pt"> </td></tr> </table> On October 25, 2021, pursuant to the SPA, <span id="xdx_904_ecustom--DescriptionOfAccreditedInvestors_c20211024__20211025__us-gaap--ShortTermDebtTypeAxis__us-gaap--ConvertibleNotesPayableMember_z9bjHDTdasMl" title="Description of accredited investors">the Company issued to certain accredited investors (i) secured convertible notes in an aggregate principal amount of $16.3 million for an aggregate purchase price of $15 million (collectively, the “Notes”), which are, subject to certain conditions, convertible at any time by the investors, into an aggregate of 1,776,073 shares (the “Conversion Shares”) of the Company’s common stock, at a price per share of $9.18 (the “Fixed Conversion Price”) and (ii) Class A, Class B and Class C common stock purchase warrants (collectively, the “Warrants”) to purchase up to an aggregate of 1,776,073 shares of common stock , at an exercise price $12.50, $15 and $18 per share, respectively. The Warrants are legally detachable and can be separately be exercised immediately for five years upon issuance, subject to applicable Nasdaq rules. The Notes, subject to an original issue discount of 8%, have a maturity date of October 25, 2022 (the “Maturity Date”), upon which the Notes shall be payable in full. Commencing on the Maturity Date and also five (5) days after the occurrence of any Event of Default (as defined in the Notes), interest on the Notes will accrue at an interest rate equal to the lesser of 18% per annum or the maximum rate permitted under applicable law. If any Event of Default or a Fundamental Transaction (as defined in the Notes) or a Change of Control (as defined in the Notes) occurs, the outstanding principal amount of the Notes, liquidated damages and other amounts owing in respect thereof through the date of acceleration, will become, at the Investor’s election, immediately due and payable in cash at the Mandatory Default Amount (as defined in the Notes). The Notes may not be prepaid, redeemed or mandatory converted without the consent of the Investors. The obligations of the Company pursuant to the Notes are (i) secured to the extent and as provided in the Security Agreement, dated as of October 25, 2021, by and among the Company, MTI Instruments and SCI, Soluna MC, LLC and Soluna SW, LLC (both of which are wholly owned subsidiaries of SCI, and together with MTI Instruments and SCI, the “Subsidiary Guarantors”), and Collateral Services LLC, as collateral agent for and the holders of the Notes (the “Security Agreement”); and (ii) guaranteed jointly and severally by the Subsidiary Guarantors pursuant to each Subsidiary Guaranty, dated as of October 25, 2021, by and among each Subsidiary Guarantor and the purchasers signatory to the SPA (each, a “Subsidiary Guaranty”). The fair value of the Warrants, as of the issuance date, was $7.0 million and is recorded as equity with the offset recorded as debt discount against the net proceeds. The proceeds of $15.0 million were allocated between the Notes and the Warrants, in which the discount related to the warrants are being amortized based on the straight-line method over the twelve months term of the Notes. For the year ended, December 31, 2021, the Company has recorded amortized debt discount, related to the warrants, the amount of $1.3 million, which is included in interest expense. The Company has also recorded a debt discount on the Notes as the difference between the face amount of the notes payable of $16.3 million and purchase price of $15.0 million of $1.3 million in which approximately $300 thousand has been amortized. There was also debt issuance costs of approximately $1.3 million and approximately $300 thousand has been amortized. All amortized costs are included in interest expense. During the year ended December 31, 2021, $14.9 million is remaining in the principal balance of the Notes and approximately $1.4 million was converted into 150,000 shares of the Company’s common stock. Line of Credit On September 13, 2021, the Company entered into a $1.0 million unsecured line of credit with KeyBank National Association, that will, among other things, allow the Company to request loans and to use the proceeds of such loans for working capital and other general corporate purposes. The line of credit may be drawn at the discretion of the Company, and bears interest at a rate of Prime + 0.75% per annum (4% interest rate as of December 31, 2021). Accrued interest is due monthly and principal is due in full following lender’s demand. As of December 31, 2021, the entire line of credit of $1 million was drawn and outstanding. MTI Instruments previously held a secured line of credit with Pioneer Bank in the amount of $300 thousand. The secured line of credit was closed on September 10, 2021 with no outstanding amounts.

</us-gaap:DebtDisclosureTextBlock>

<us-gaap:ConvertibleDebtTableTextBlock contextRef="From2021-01-01to2021-12-31">

Convertible Notes Debt consists of the following (dollar in thousands): <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td style="text-align: center">Maturity Date</td><td> </td> <td colspan="2" style="text-align: center">Interest Rate</td><td> </td><td> </td> <td colspan="2" style="text-align: center">December 31, 2021</td><td> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 57%; text-align: left">Convertible Note</td><td style="width: 1%"> </td> <td style="width: 12%; padding-left: 5.4pt; text-align: center">October 25, 2022</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">8</td><td style="width: 1%; text-align: left">%</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--DeferredFinanceCostsNoncurrentGross_iI_pn3n3_c20211231_z0ECRWcjLUa3" style="width: 12%; text-align: right" title="Convertible notes">14,927</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Less: debt discount</td><td> </td> <td style="padding-left: 5.4pt"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--AccumulatedAmortizationOfNoncurrentDeferredFinanceCosts_iI_pn3n3_c20211231_zobBaQ3ZVdB5" style="text-align: right" title="Less: debt discount">967</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Less: discount from issuance of warrants</td><td> </td> <td style="padding-left: 5.4pt"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_ecustom--DebtInstrumentLessdiscountFromIssuanceOfWarrants_iI_pn3n3_c20211231_zzZpIqrb6KR9" style="text-align: right" title="Less: discount from issuance of warrants">5,747</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Less: debt issuance costs</td><td style="padding-bottom: 1pt"> </td> <td style="padding-left: 5.4pt; padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td style="text-align: left; padding-bottom: 1pt"> </td><td style="text-align: right"> </td><td style="text-align: left; padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98D_eus-gaap--DeferredFinanceCostsGross_iI_pn3n3_c20211231_zBM6x3MCswZi" style="border-bottom: Black 1pt solid; text-align: right" title="Less: debt issuance costs">1,092</td><td style="text-align: left; padding-bottom: 1pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total convertible notes, net of discount and issuance costs</td><td style="padding-bottom: 2.5pt"> </td> <td style="padding-left: 5.4pt; padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left; padding-bottom: 2.5pt"> </td><td style="text-align: right"> </td><td style="text-align: left; padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_982_eus-gaap--DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_iI_pn3n3_c20211231_zWbokQL2hbra" style="border-bottom: Black 2.5pt double; text-align: right" title="Total convertible notes, net of discount and issuance costs">7,121</td><td style="text-align: left; padding-bottom: 2.5pt"> </td></tr> </table>

</us-gaap:ConvertibleDebtTableTextBlock>

<us-gaap:InvestmentMaturityDate contextRef="AsOf2021-12-31"> 2022-10-25 </us-gaap:InvestmentMaturityDate>

<us-gaap:SubordinatedBorrowingInterestRate contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 0.08 </us-gaap:SubordinatedBorrowingInterestRate>

<us-gaap:DeferredFinanceCostsNoncurrentGross contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 14927000 </us-gaap:DeferredFinanceCostsNoncurrentGross>

<us-gaap:AccumulatedAmortizationOfNoncurrentDeferredFinanceCosts contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 967000 </us-gaap:AccumulatedAmortizationOfNoncurrentDeferredFinanceCosts>

<mkty:DebtInstrumentLessdiscountFromIssuanceOfWarrants contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 5747000 </mkty:DebtInstrumentLessdiscountFromIssuanceOfWarrants>

<us-gaap:DeferredFinanceCostsGross contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 1092000 </us-gaap:DeferredFinanceCostsGross>

<us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 7121000 </us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet>

<mkty:DescriptionOfAccreditedInvestors contextRef="From2021-10-242021-10-25_us-gaap_ConvertibleNotesPayableMember"> the Company issued to certain accredited investors (i) secured convertible notes in an aggregate principal amount of $16.3 million for an aggregate purchase price of $15 million (collectively, the “Notes”), which are, subject to certain conditions, convertible at any time by the investors, into an aggregate of 1,776,073 shares (the “Conversion Shares”) of the Company’s common stock, at a price per share of $9.18 (the “Fixed Conversion Price”) and (ii) Class A, Class B and Class C common stock purchase warrants (collectively, the “Warrants”) to purchase up to an aggregate of 1,776,073 shares of common stock , at an exercise price $12.50, $15 and $18 per share, respectively. The Warrants are legally detachable and can be separately be exercised immediately for five years upon issuance, subject to applicable Nasdaq rules. </mkty:DescriptionOfAccreditedInvestors>

<us-gaap:DebtInstrumentInterestRateEffectivePercentage contextRef="AsOf2021-12-31" decimals="INF" unitRef="Pure"> 0.08 </us-gaap:DebtInstrumentInterestRateEffectivePercentage>

<us-gaap:FairValueAdjustmentOfWarrants contextRef="From2021-01-01to2021-12-31" decimals="-6" unitRef="USD"> 7000000 </us-gaap:FairValueAdjustmentOfWarrants>

<us-gaap:DebtInstrumentFaceAmount contextRef="AsOf2021-12-31" decimals="0" unitRef="USD"> 16300000 </us-gaap:DebtInstrumentFaceAmount>

<us-gaap:DebtSecuritiesHeldToMaturityPurchase contextRef="From2021-01-01to2021-12-31" decimals="-6" unitRef="USD"> 15000000 </us-gaap:DebtSecuritiesHeldToMaturityPurchase>

<us-gaap:AmortizationOfDebtDiscountPremium contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 300000 </us-gaap:AmortizationOfDebtDiscountPremium>

<us-gaap:AmortizationOfFinancingCosts contextRef="From2021-01-01to2021-12-31" decimals="0" unitRef="USD"> 1300000 </us-gaap:AmortizationOfFinancingCosts>

<us-gaap:ProceedsFromUnsecuredLinesOfCredit contextRef="From2021-09-122021-09-13" decimals="-6" unitRef="USD"> 1000000 </us-gaap:ProceedsFromUnsecuredLinesOfCredit>

<us-gaap:LineOfCreditFacilityInterestRateDuringPeriod contextRef="From2021-09-122021-09-13" decimals="INF" unitRef="Pure"> 0.04 </us-gaap:LineOfCreditFacilityInterestRateDuringPeriod>

<us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity contextRef="AsOf2021-09-13" decimals="-6" unitRef="USD"> 1000000 </us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity>

<us-gaap:StockholdersEquityNoteDisclosureTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">10.</td><td>Stockholders’ Equity</td></tr></table> Preferred Stock The Company has one series of preferred stock outstanding, known as the Series A Cumulative Perpetual Preferred Stock, par value $0.001 per share, with a $<span id="xdx_901_eus-gaap--PreferredStockLiquidationPreference_iI_pii_uUSDPShares_c20211231__us-gaap--StatementClassOfStockAxis__custom--SeriesACumulativePreferredStockMember_zGb1bIOTn5yf" title="Liquidation preference">25.00 liquidation preference. As of December 31, 2021 and December 31, 2020, there were <span id="xdx_90F_eus-gaap--PreferredStockSharesOutstanding_iI_pid_c20211231__us-gaap--StatementClassOfStockAxis__custom--SeriesACumulativePreferredStockMember_zdOihSfgRhe1" title="Preferred stock, outstanding">1,252,299 and 0 shares of preferred stock issued and outstanding, respectively. Common Stock The Company has one class of common stock, par value $0.001. Each share of the Company’s common stock is entitled to one vote on all matters submitted to stockholders. As of December 31, 2021 and December 31, 2020, there were 13,754,206 and 9,734,607 shares of common stock issued and outstanding, respectively. Dividends Pursuant to the Certificate of Designations, Preferences and Rights of 9.0% Series A Cumulative Perpetual Preferred Stock of the Company, dividends, when, as and if declared by the Board of Directors, (or a duly authorized committee of the Board of Directors), will be payable monthly in arrears on the final day of each month, beginning August 31, 2021. During the year ended December 31, 2021, the Board of Directors declared and the Company paid monthly preferred stock dividends totaling an amount of approximately $630 thousand. There were no dividends declared or paid on either the common or preferred stock during 2020. Reservation of Shares <p id="xdx_898_ecustom--ScheduleOfReservedCommonSharesForFutureIssuanceTableTextBlock_zOc2PRwTpe3g" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">The Company had reserved shares of common stock for future issuance as follows as of December 31, 2021: Schedule of reserved common shares for future issuance <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2" id="xdx_497_20211231_zzkjHix0G6Cb" style="text-align: right"> </td><td> </td></tr> <tr id="xdx_40A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_pii_uShares_zMNxbQrWgTf4" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 85%; text-align: left">Stock options outstanding</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">991,550</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_iI_pii_uShares_zlTxaAiZ0VZf" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Restricted stock units outstanding</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">160,473</td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pii_uShares_zr5taDLe4SJb" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Warrants outstanding</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,193,512</td><td style="text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_iI_pid_uShares_zeHDqlQ6dTA1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Common stock available for future equity awards or issuance of options</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">392,717</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_iI_pii_uShares_z4IiVF1vsrO9" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt">Number of common shares reserved</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">3,738,252</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</us-gaap:StockholdersEquityNoteDisclosureTextBlock>

<us-gaap:PreferredStockParOrStatedValuePerShare contextRef="AsOf2021-09-30_custom_SeriesACumulativePreferredStockMember" decimals="INF" unitRef="USDPShares"> 0.001 </us-gaap:PreferredStockParOrStatedValuePerShare>

<us-gaap:PreferredStockLiquidationPreference contextRef="AsOf2021-12-31_custom_SeriesACumulativePreferredStockMember" decimals="INF" unitRef="USDPShares"> 25.00 </us-gaap:PreferredStockLiquidationPreference>

<us-gaap:PreferredStockSharesOutstanding contextRef="AsOf2021-12-31_custom_SeriesACumulativePreferredStockMember" decimals="INF" unitRef="Shares"> 1252299 </us-gaap:PreferredStockSharesOutstanding>

<us-gaap:PreferredStockSharesOutstanding contextRef="AsOf2020-12-31_custom_SeriesACumulativePreferredStockMember" decimals="INF" unitRef="Shares"> 0 </us-gaap:PreferredStockSharesOutstanding>

<us-gaap:CommonStockParOrStatedValuePerShare contextRef="AsOf2021-12-31" decimals="INF" unitRef="USDPShares"> 0.001 </us-gaap:CommonStockParOrStatedValuePerShare>

<us-gaap:PreferredStockParticipationRights contextRef="From2021-01-012021-12-31_us-gaap_SeriesAPreferredStockMember"> Preferences and Rights of 9.0% Series A Cumulative Perpetual Preferred Stock of the Company, dividends, when, as and if declared by the Board of Directors </us-gaap:PreferredStockParticipationRights>

<us-gaap:Dividends contextRef="From2021-01-012021-12-31_custom_DividendMember" decimals="-3" unitRef="USD"> 630000 </us-gaap:Dividends>

<mkty:ScheduleOfReservedCommonSharesForFutureIssuanceTableTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_898_ecustom--ScheduleOfReservedCommonSharesForFutureIssuanceTableTextBlock_zOc2PRwTpe3g" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">The Company had reserved shares of common stock for future issuance as follows as of December 31, 2021: Schedule of reserved common shares for future issuance <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2" id="xdx_497_20211231_zzkjHix0G6Cb" style="text-align: right"> </td><td> </td></tr> <tr id="xdx_40A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_pii_uShares_zMNxbQrWgTf4" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 85%; text-align: left">Stock options outstanding</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 12%; text-align: right">991,550</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_iI_pii_uShares_zlTxaAiZ0VZf" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Restricted stock units outstanding</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">160,473</td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--ClassOfWarrantOrRightOutstanding_iI_pii_uShares_zr5taDLe4SJb" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Warrants outstanding</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,193,512</td><td style="text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_iI_pid_uShares_zeHDqlQ6dTA1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Common stock available for future equity awards or issuance of options</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">392,717</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_iI_pii_uShares_z4IiVF1vsrO9" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt">Number of common shares reserved</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">3,738,252</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</mkty:ScheduleOfReservedCommonSharesForFutureIssuanceTableTextBlock>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber contextRef="AsOf2021-12-31" decimals="INF" unitRef="Shares"> 991550 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber contextRef="AsOf2021-12-31" decimals="INF" unitRef="Shares"> 160473 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber>

<us-gaap:ClassOfWarrantOrRightOutstanding contextRef="AsOf2021-12-31" decimals="INF" unitRef="Shares"> 2193512 </us-gaap:ClassOfWarrantOrRightOutstanding>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant contextRef="AsOf2021-12-31" decimals="INF" unitRef="Shares"> 392717 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant>

<us-gaap:CommonStockCapitalSharesReservedForFutureIssuance contextRef="AsOf2021-12-31" decimals="INF" unitRef="Shares"> 3738252 </us-gaap:CommonStockCapitalSharesReservedForFutureIssuance>

<us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">11.</td><td>Retirement Plan</td></tr></table> The Company maintains a voluntary savings and retirement plan under IRC Section 401(k) covering substantially all employees. Employees must complete six months of service and have attained the age of twenty-one prior to becoming eligible for participation in the plan. The Company plan allows eligible employees to contribute a percentage of their compensation on a pre-tax basis and the Company matches employee contributions, on a discretionary basis, currently in an amount equal to 100% of the first 3% and 50% of the next 2% of the employee’s salary, subject to annual tax deduction limitations. Effective January 1, 2017, Company matching contributions are vested immediately. Company matching contributions were $18 thousand and $11 thousand for 2021 and 2020, respectively. The Company may also make additional discretionary contributions in amounts as determined by management and the Board of Directors. There were no additional discretionary contributions by the Company for the years 2021 or 2020.

</us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock>

<us-gaap:DefinedBenefitPlanContributionsByEmployer contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 18000 </us-gaap:DefinedBenefitPlanContributionsByEmployer>

<us-gaap:DefinedBenefitPlanContributionsByEmployer contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 11000 </us-gaap:DefinedBenefitPlanContributionsByEmployer>

<us-gaap:EarningsPerShareTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">12.</td><td style="text-align: justify">Net (loss) income per Share</td></tr></table> <p id="xdx_892_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zlq8hf3fDKja" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">The following table sets forth the reconciliation of the numerators and denominators of the basic and diluted per share computations for continuing operations for the years ended December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands, except shares)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_499_20210101__20211231_zsCIDCwqmfWi" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_491_20200101__20201231_zEvsNMQ4aTwc" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2" style="text-align: right"> </td><td> </td><td> </td> <td colspan="2" style="text-align: right"> </td><td> </td></tr> <tr id="xdx_40A_ecustom--NumeratorAbstract_iB_zxYrARjaylmk" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold">Numerator:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--IncomeLossFromContinuingOperations_pn3n3_zTWg1YfwVTlb" style="vertical-align: bottom; background-color: White"> <td style="width: 70%; text-align: left">Net loss from continuing operations</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">(6,388</td><td style="width: 1%; text-align: left">)</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">(1,210</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_40A_eus-gaap--IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_pn3n3_zFzjnaR0t2Oj" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Net income from discontinuing operations</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">1,127</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">3,156</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--NetIncomeLoss_i01_pn3n3_zTd56Rq8HEv1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Net (Loss) Income</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">(5,261</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,946</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_ecustom--PreferredDividend_i01N_pn3n3_di_zO9lvatDNFKk" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Less: Preferred Dividend</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(630</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">-</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_406_ecustom--NetIncomeLossBalance_i01_pn3n3_zDI77QgtiAH2" style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 2.5pt">Balance</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(5,891</td><td style="text-align: left; padding-bottom: 2.5pt">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,946</td><td style="text-align: left; padding-bottom: 2.5pt"> </td></tr> <tr id="xdx_40C_ecustom--EarningsPerShareDenominatorAbstract_iB" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-decoration: underline; font-weight: bold">Denominator:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_401_ecustom--WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAbstract_i01B_zLLlqsHNntS8" style="vertical-align: bottom; background-color: White"> <td style="font-weight: bold; text-align: left">Basic and Diluted EPS:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--WeightedAverageNumberOfDilutedSharesOutstanding_i02_pid_hus-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zt5OwlUwt5N" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Common shares outstanding, beginning of period</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9,734,607</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9,570,677</td><td style="text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--WeightedAverageNumberDilutedSharesOutstandingAdjustment_i01_pii" style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1pt; padding-left: 0.125in">Weighted average common shares issued during the period</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">2,105,635</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">11,209</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Denominator for basic earnings per common shares —</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--WeightedAverageNumberOfDilutedSharesOutstanding_i01_pii" style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 2.5pt; padding-left: 0.125in">Weighted average common shares</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">11,840,242</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">9,581,886</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> The Company notes as continuing operations was in a Net loss for fiscal year 2021 and 2020, as such basic and diluted EPS is the same balance as continuing operations acts as the control amount in which would cause antidilution. Not included in the computation of earnings per share, assuming dilution, for the year ended December 31, 2021, were options to purchase <span id="xdx_904_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20210101__20211231__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zzqgcGiLHLwf" title="Potentially dilutive securities">991,550 shares of the Company’s common stock, <span id="xdx_909_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20210101__20211231__us-gaap--StatementClassOfStockAxis__us-gaap--RestrictedStockUnitsRSUMember_zsl7tkQ2lPN6">160,473 nonvested restricted stock units, 2,193,512 outstanding warrants not exercised, and 1,626,073 shares of convertible notes outstanding. These potentially dilutive items were excluded because the calculation of incremental shares resulted in an anti-dilutive effect. Not included in the computation of earnings per share, assuming dilution, for the year ended December 31, 2020, were options to purchase 398,550 shares of the Company’s common stock. These potentially dilutive items were excluded even though the average market price of the common stock exceeded the exercise prices for a portion of the options because the calculation of shares resulted in an anti-dilutive effect.

</us-gaap:EarningsPerShareTextBlock>

<us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_892_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_zlq8hf3fDKja" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0; text-align: justify">The following table sets forth the reconciliation of the numerators and denominators of the basic and diluted per share computations for continuing operations for the years ended December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands, except shares)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_499_20210101__20211231_zsCIDCwqmfWi" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_491_20200101__20201231_zEvsNMQ4aTwc" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2" style="text-align: right"> </td><td> </td><td> </td> <td colspan="2" style="text-align: right"> </td><td> </td></tr> <tr id="xdx_40A_ecustom--NumeratorAbstract_iB_zxYrARjaylmk" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold">Numerator:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--IncomeLossFromContinuingOperations_pn3n3_zTWg1YfwVTlb" style="vertical-align: bottom; background-color: White"> <td style="width: 70%; text-align: left">Net loss from continuing operations</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">(6,388</td><td style="width: 1%; text-align: left">)</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 12%; text-align: right">(1,210</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_40A_eus-gaap--IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_pn3n3_zFzjnaR0t2Oj" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Net income from discontinuing operations</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">1,127</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">3,156</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--NetIncomeLoss_i01_pn3n3_zTd56Rq8HEv1" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Net (Loss) Income</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">(5,261</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1,946</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_ecustom--PreferredDividend_i01N_pn3n3_di_zO9lvatDNFKk" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Less: Preferred Dividend</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(630</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">-</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_406_ecustom--NetIncomeLossBalance_i01_pn3n3_zDI77QgtiAH2" style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 2.5pt">Balance</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(5,891</td><td style="text-align: left; padding-bottom: 2.5pt">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,946</td><td style="text-align: left; padding-bottom: 2.5pt"> </td></tr> <tr id="xdx_40C_ecustom--EarningsPerShareDenominatorAbstract_iB" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-decoration: underline; font-weight: bold">Denominator:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_401_ecustom--WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAbstract_i01B_zLLlqsHNntS8" style="vertical-align: bottom; background-color: White"> <td style="font-weight: bold; text-align: left">Basic and Diluted EPS:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--WeightedAverageNumberOfDilutedSharesOutstanding_i02_pid_hus-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zt5OwlUwt5N" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Common shares outstanding, beginning of period</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9,734,607</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9,570,677</td><td style="text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--WeightedAverageNumberDilutedSharesOutstandingAdjustment_i01_pii" style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1pt; padding-left: 0.125in">Weighted average common shares issued during the period</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">2,105,635</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">11,209</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Denominator for basic earnings per common shares —</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--WeightedAverageNumberOfDilutedSharesOutstanding_i01_pii" style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 2.5pt; padding-left: 0.125in">Weighted average common shares</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">11,840,242</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">9,581,886</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock>

<us-gaap:IncomeLossFromContinuingOperations contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> -6388000 </us-gaap:IncomeLossFromContinuingOperations>

<us-gaap:IncomeLossFromContinuingOperations contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> -1210000 </us-gaap:IncomeLossFromContinuingOperations>

<us-gaap:NetIncomeLoss contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> -5261000 </us-gaap:NetIncomeLoss>

<us-gaap:NetIncomeLoss contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 1946000 </us-gaap:NetIncomeLoss>

<mkty:PreferredDividend contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 630000 </mkty:PreferredDividend>

<mkty:NetIncomeLossBalance contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> -5891000 </mkty:NetIncomeLossBalance>

<mkty:NetIncomeLossBalance contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 1946000 </mkty:NetIncomeLossBalance>

<us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding contextRef="From2021-01-012021-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 9734607 </us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>

<us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding contextRef="From2020-01-012020-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 9570677 </us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>

<us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Shares"> 2105635 </us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment>

<us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment contextRef="From2020-01-012020-12-31" decimals="INF" unitRef="Shares"> 11209 </us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment>

<us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Shares"> 11840242 </us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>

<us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding contextRef="From2020-01-012020-12-31" decimals="INF" unitRef="Shares"> 9581886 </us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>

<us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount contextRef="From2021-01-012021-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 991550 </us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>

<us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount contextRef="From2021-01-012021-12-31_us-gaap_RestrictedStockUnitsRSUMember" decimals="INF" unitRef="Shares"> 160473 </us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>

<us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount contextRef="From2021-01-012021-12-31_us-gaap_WarrantMember" decimals="INF" unitRef="Shares"> 2193512 </us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>

<us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount contextRef="From2021-01-012021-12-31_us-gaap_ConvertibleNotesPayableMember" decimals="INF" unitRef="Shares"> 1626073 </us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>

<us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Shares"> 398550 </us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>

<us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">13.</td><td style="text-align: justify">Stock Based Compensation</td></tr></table> Stock-based incentive awards are provided to employees and directors under the terms of the Company’s 2012 Equity Incentive Plan (the 2012 Plan), which was amended and restated as of October 20, 2016, 2014 Equity Incentive Plan (the 2014 Plan), and the 2021 Equity Incentive Plan, which was amended and restated effective as of October 29, 2021, (collectively, the Plans). Awards under the Plans have generally included at-the-money options and restricted stock grants. The 2012 Plan was adopted by the Company’s Board of Directors on April 14, 2012 and approved by its stockholders on June 14, 2012. The 2012 Plan was amended and restated by the Board of Directors effective October 20, 2016. The October 2016 amendment allowed for the award agreement or another agreement entered into between the Company and the award grantee to vary the method of exercise of options issued under the 2012 Plan and an agreement entered into between the Company and the award grantee to vary the provisions governing expiration of options or other awards under the 2012 Plan following termination of the award recipient. The 2012 Plan provides an initial aggregate number of <span id="xdx_906_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_c20211231__us-gaap--PlanNameAxis__custom--Plan2012Member_pii" title="Number of shares authorized">600,000 shares of common stock that may be awarded or issued. The number of shares that may be awarded under the 2012 Plan and awards outstanding may be subject to adjustment on account of any recapitalization, reclassification, stock split, reverse stock split and other dilutive changes in our common stock. Under the 2012 Plan, the Board of Directors is authorized to issue stock options (incentive and nonqualified), stock appreciation rights, restricted stock, restricted stock units and other stock-based awards to employees, officers, directors, consultants and advisors of the Company and its subsidiaries. Incentive stock options may only be granted to employees of the Company and its subsidiaries. The 2014 Plan was adopted by the Company’s Board of Directors on March 12, 2014 and approved by its stockholders on June 11, 2014. The 2014 Plan provides an initial aggregate number of <span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_iI_pid_c20211231__us-gaap--PlanNameAxis__custom--Plan2014Member_zsRSC5H4z8eg" title="Number of shares authorized">500,000 shares of common stock that may be awarded or issued. The number of shares that may be awarded under the 2014 Plan and awards outstanding may be subject to adjustment on account of any stock dividend, spin-off, stock split, reverse stock split, split-up, recapitalization, reclassification, reorganization, combination or exchange of shares, merger, consolidation, liquidation, business combination, exchange of shares or the like. Under the 2014 Plan, the Board-appointed administrator of the 2014 Plan is authorized to issue stock options (incentive and nonqualified), stock appreciation rights, restricted stock, restricted stock units, phantom stock, performance awards and other stock-based awards to employees, officers and directors of, and other individuals providing bona fide services to or for, the Company or any affiliate of the Company. Incentive stock options may only be granted to employees of the Company and its subsidiaries. The Company’s 2021 Plan was adopted by the Board on February 12, 2021 and approved by the stockholders on March 25, 2021. The 2021 Plan was amended and restated effective as of October 29, 2021. The 2021 Plan authorizes the Company to issue shares of common stock upon the exercise of stock options, the grant of restricted stock awards, and the conversion of restricted stock units (collectively, the “Awards”). The Compensation Committee has full authority, subject to the terms of the 2021 Plan, to interpret the 2021 Plan and establish rules and regulations for the proper administration of the 2021 Plan. Subject to certain adjustments as provided in the 2021 Plan, the maximum aggregate number of shares of the Company’s common stock that may be issued under the 2021 Plan (i) pursuant to the exercise of stock options, (ii) as restricted stock, and (iii) as available pursuant to restricted stock units shall be limited to (A) during the Company’s fiscal year ending December 31, 2021 (the “2021 Fiscal Year”), <span id="xdx_908_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20210101__20211231__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zwheLgrnfxqk" title="Number of option shares granted">1,460,191 shares of common stock, and (B) beginning with the Company’s fiscal year ending December 31, 2022 (the “2022 Fiscal Year”), 15% of the number of shares of common stock outstanding. Subject to certain adjustments as provided in the 2021 Plan, (i) shares of the Company’s common stock subject to the 2021 Plan shall include shares of common stock forfeited in a prior year and (ii) the number of shares of common stock that may be issued under the 2021 Plan may never be less than the number of shares of the Company’s common stock that are then outstanding under outstanding Awards. During the fiscal year ended December 31, 2021, the Company granted options to purchase <span id="xdx_909_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pii_uShares_c20210101__20211230__us-gaap--PlanNameAxis__custom--Stock2021PlanMember__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z3xYqdVMoc7g" title="Number of option shares granted">716,200 shares of the Company’s common stock under the 2021 Plan, of which <span id="xdx_90F_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_pii_uShares_c20210101__20211230__us-gaap--PlanNameAxis__custom--Stock2021PlanMember__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zftdhcqCW8gf" title="Number of option shares vested">186,200 shares immediately vested with an exercise price of $<span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_c20210101__20211230__us-gaap--PlanNameAxis__custom--Stock2021PlanMember__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" title="Number of exercise price per share">7.52 per share, based on the closing price plus <span id="xdx_90A_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_c20210101__20211230__us-gaap--PlanNameAxis__custom--Stock2021PlanMember__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" title="Closing price percent">10% of the Company’s common stock on the date of the grant. The remaining <span id="xdx_90B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_c20210101__20211230__us-gaap--PlanNameAxis__custom--Stock2021PlanMember__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember__custom--RedemptionPeriodAxis__custom--ThirdAnniversaryOnOrPriorClosingDateMember_pii" title="Number of option shares granted">530,000 shares will vest in equal installments of 33 1/3% on each of the three anniversaries of the date of the grant. The weighted exercise price of these options is $<span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20210101__20211230__us-gaap--PlanNameAxis__custom--Stock2021PlanMember__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" title="Weighted average fair value shares granted (in dollars per share)">7.08 per share and was based on the closing market price of the Company’s common stock on the dates of grant. Using a Black-Scholes Option Pricing Model, the weighted average fair value of these options was $<span id="xdx_901_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1_c20210101__20211230__us-gaap--PlanNameAxis__custom--Stock2021PlanMember__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zkYWQ0EQZYQa" title="Weighted average exercise price shares granted (in dollars per share)">5.04 per share and was estimated at the date of grant. During the fiscal year ended December 31, 2021, the Company awarded 201,926 shares of restricted common stock under the 2021 Plan, <span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_c20210101__20211230__us-gaap--PlanNameAxis__custom--Stock2021PlanMember__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_pii" title="Restricted stock grants during period">47,500 shares of valued at $<span id="xdx_903_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_c20211231__us-gaap--PlanNameAxis__custom--Stock2021PlanMember__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_pii" title="Price per share on date of grant">11.10 per share and 154,426 shares valued at $12.23 per share based on the closing market price of the Company’s common stock on the date of the award. 47,500 of the shares will be restricted for one year, with the entire award vesting on the first anniversary of the award date. For the remaining 154,426 shares, 33 1/3% of the shares will vest on the first anniversary of the award date, and the remaining shares shall vest ratably over the succeeding 24 month period, with (1/24) of such remaining shares vesting on the last day of each calendar month. During the fiscal year ended December 31, 2021, the Company awarded 160,473 restricted stock units under the 2021 Plan, valued ranging from $<span id="xdx_90E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iI_pid_c20211231__us-gaap--PlanNameAxis__custom--Stock2021PlanMember__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember__srt--RangeAxis__srt--MinimumMember_zDGvnROn6A71" title="Price per share on date of grant">11.10-$<span id="xdx_909_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iI_pid_c20211231__us-gaap--PlanNameAxis__custom--Stock2021PlanMember__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember__srt--RangeAxis__srt--MaximumMember_zg0sYnaDvjsg" title="Price per share on date of grant">16.61 per share based on the closing market price of the Company’s common stock on the date of the grant. For <span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_c20210101__20211230__us-gaap--PlanNameAxis__custom--Stock2021PlanMember__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" title="Restricted stock grants during period">15,000 restricted stock units, 33 1/3% of such restricted stock units will vest on each of the first three anniversaries of the date of the grant. For 121,822 restricted stock units, 25% of the grant shares shall vest on the first anniversary of the effective time, and the remaining 75% shall vest over the succeeding 36 month period, with (1/36) of such remaining grant shares vest on the last day of the calendar month. For 14,782 shares, 25% of such restricted stock units shall vest after six months of the award, and the remaining shares shall vest ratably over the succeeding 36 month period, with (1/36) of such vesting on the last day of each such calendar month. For 8,869 shares, they are performance based awards that will vest in the following year in January based on approval of the Board of Directors based on achievement of key performance objectives. In connection with the sale of shares of common stock to Brookstone, the Company entered into an Option Exercise and Stock Transfer Restriction Agreement (collectively, the Option and Transfer Agreements) with its Chief Executive Officer, its Chief Financial Officer and each of its non-employee directors (collectively, the Insiders). The Option and Transfer Agreements amend the stock option grant agreements between the Company and each Insider with respect to an option granted under and modify the terms of any option to purchase common stock held by each such Insider (collectively, Options) granted under, the Plans. The Option and Transfer Agreements restrict the aggregate amount of shares of common stock for which the Insiders may exercise Options during calendar years 2016, 2017, 2018 and 2019, and provide for a modified procedure for exercising Options in order to ensure the limit on the aggregate amount of Options that may be exercised in any such year is not exceeded. Such amendments and modifications also operate to, except with respect to the termination of Options in connection with an Insider’s termination of employment or service in connection with misconduct as described in the Option and Transfer Agreements, (i) remove all references to an expiration of the exercisability of such Options within a special, delineated time period following the termination of service to or employment by the Company, and (ii) provide that all vested Options are exercisable by the Insider until default expiration under the applicable Plan (i.e., ten years from the date of grant). If an Option and Transfer Agreement is terminated, the limitations on Option exercises described above will terminate, but the exercisability of the Insider’s vested Options until default expiration under the applicable Plan and stock option agreement (i.e., ten years from the date of grant) will survive indefinitely. On January 14, 2020, the Company awarded to members of the Company’s Investment Committee and to the Company’s CEO special one-time restricted stock awards totaling <span id="xdx_903_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_pii_uShares_c20200101__20200114__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--InvestmentCommitteeAndCeoMember_zbqMxzJiOwv" title="Restricted stock grants during period">68,930 shares of common stock (<span id="xdx_907_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_pii_uShares_c20200101__20200114__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--InvestmentCommitteeAndCeoMember__us-gaap--PlanNameAxis__custom--Plan2012Member_z7Go3dQruqT4" title="Restricted stock grants during period">67,930 from the 2012 Plan and <span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_pii_uShares_c20200101__20200114__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--InvestmentCommitteeAndCeoMember__us-gaap--PlanNameAxis__custom--Plan2014Member_zMcGPShmdyT8" title="Restricted stock grants during period">1,000 from the 2014 Plan) valued at $<span id="xdx_906_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_c20200114__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--InvestmentCommitteeAndCeoMember_pii" title="Price per share on date of grant">0.99 per share based on the closing market price of the Company’s common stock on the date of grant. The shares will be restricted until vested and vest in two annual installments, with half vesting on the first anniversary of the award date and the remainder vesting on the second anniversary of the award date. During 2020, the Company granted options to purchase <span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pii_uShares_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2014Member_zQXsVrM8iMf2" title="Number of option shares granted">25,000 shares of the Company’s common stock from the 2014 Plan, which generally vest 25% on each of the first four anniversaries of the date of the award. The exercise price of these options is $<span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pii_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2014Member_zopvyR8A0XYh" title="Weighted average exercise price shares granted (in dollars per share)">0.70 per share and was based on the closing market price of the Company’s common stock on the day prior to the date of grant. Using a Black-Scholes Option Pricing Model, the weighted average fair value of these options is $<span id="xdx_901_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1_pii_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2014Member_zPF4xUYgK5Ei" title="Weighted average fair value shares granted (in dollars per share)">0.57 per share and was estimated at the date of grant. During 2020, the Company granted options to purchase <span id="xdx_906_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pii_uShares_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2012Member_z1kIwKyj3Dyf" title="Number of option shares granted">25,000 shares of the Company’s common stock from the 2012 Plan, which generally vest 25% on each of the first four anniversaries of the date of the award. The exercise price of these options is $<span id="xdx_906_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2012Member_pii" title="Weighted average exercise price shares granted (in dollars per share)">0.75 per share and was based on the closing market price of the Company’s common stock on the date of grant. Using a Black-Scholes Option Pricing Model, the weighted average fair value of these options is $<span id="xdx_90F_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2012Member_pii" title="Weighted average fair value shares granted (in dollars per share)">0.61 per share and was estimated at the date of grant. On December 21, 2020, the Company awarded to its CFO and the President of MTI Instruments restricted stock awards totaling <span id="xdx_903_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_uShares_c20210101__20211231__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--MtiCfoAndPresidentMember__us-gaap--PlanNameAxis__custom--Plan2014Member_zKNHghJ9FtQc" title="Number of option shares granted">15,000 shares of common stock from the 2014 Plan valued at $<span id="xdx_90D_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20210101__20211231__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--MtiCfoAndPresidentMember__us-gaap--PlanNameAxis__custom--Plan2014Member_ztMMUltxvAsd">3.63 per share based on the closing market price of the Company’s common stock on the date of grant. The shares will be restricted until vested and vest in three annual installments beginning on the first anniversary of the award date. Stock-based compensation expense for the years ended December 31, 2021 and 2020 was generated from stock option and restricted stock awards. Stock options are awards that allow holders to purchase shares of the Company’s common stock at a fixed price. Certain options granted may be fully or partially exercisable immediately, may vest on other than a four-year schedule or vest upon attainment of specific performance criteria. Restricted stock awards generally vest one to three years after the date of grant, although certain awards may vest immediately or vest upon attainment of specific performance criteria. Option exercise prices are generally equivalent to the closing market value price of the Company’s common stock on the date of grant. Unexercised options generally terminate ten years after date of grant. The following table presents the weighted-average assumptions used for options granted under the 2021 Plan: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 70%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 55%; text-align: left">Option term (years)</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_ddxL_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2021Member_zlaLEQajMJe3" style="width: 12%; text-align: right" title="Option term (years)::XDX::P4Y0M15D">4.04</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Volatility</td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pii_dp_uPure_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2021Member_zQZRNXvMz4Z8" style="text-align: right" title="Volatility">108.33</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Unvested forfeiture rate</td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_pid_dp_uPure_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2021Member_zM5WNvwcdpM6" style="text-align: right" title="Unvested forfeiture rate">0.18</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Risk-free interest rate</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pii_dp_uPure_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2021Member_zpYncO6UJxI9" style="text-align: right" title="Risk-free interest rate">0.84</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Dividend yield</td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pii_dp_uPure_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2021Member_ztqZAmBgDhTf" style="text-align: right" title="Dividend yield">0.00</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Weighted-average fair value per option granted</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue_pid_dp_uUSDPShares_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2021Member_z4optgF3IVhk" style="text-align: right" title="Weighted-average fair value per option granted">5.04</td><td style="text-align: left"> </td></tr> </table> The following table presents the weighted-average assumptions used for options granted under the 2014 Plan: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 86%; text-align: left">Option term (years)</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_988_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtYxL_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2014Member_zDTAZqR70L58" style="width: 11%; text-align: right" title="Option term (years)::XDX::P6Y2M30D">6.25</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Volatility</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pii_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2014Member_zcmPOs2GQLli" style="text-align: right" title="Volatility">106.22</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Unvested forfeiture rate</td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_pii_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2014Member_z5Kfi5Gq5v79" style="text-align: right" title="Unvested forfeiture rate">0.20</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Risk-free interest rate</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pii_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2014Member_zYmlDkAW7hl4" style="text-align: right" title="Risk-free interest rate">0.31</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Dividend yield</td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pii_dp_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2014Member_zuPZl5M8aEhj" style="text-align: right" title="Dividend yield">0.00</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Weighted-average fair value per option granted</td><td> </td> <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue_pid_dp_uUSDPShares_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2014Member_z0NjtkDfQMFl" style="text-align: right" title="Weighted-average fair value per option granted">0.57</td><td style="text-align: left"> </td></tr> </table> No options were granted under the 2014 Plan for the year ended December 31, 2021. The following table presents the weighted-average assumptions used for options granted under the 2012 Plan: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 86%; text-align: left">Option term (years)</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtYxL_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2012Member_zdjqQSTvQGSi" style="width: 11%; text-align: right" title="Option term (years)::XDX::P6Y2M30D">6.25</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Volatility</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pii_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2012Member_zQlQ2elwMUW2" style="text-align: right" title="Volatility">106.46</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Unvested forfeiture rate</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_pii_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2012Member_zF2mYnFVAaHh" style="text-align: right" title="Unvested forfeiture rate">0.20</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Risk-free interest rate</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2012Member_zpaoYvx2ahH8" style="text-align: right" title="Risk-free interest rate">0.28</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Dividend yield</td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pii_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2012Member_zSL2wzKvqXRg" style="text-align: right" title="Dividend yield">0.00</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Weighted-average fair value per option granted</td><td> </td> <td style="text-align: left">$</td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue_pid_dp_uUSDPShares_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2012Member_zYG7cjei8Hog" style="text-align: right" title="Weighted-average fair value per option granted">0.61</td><td style="text-align: left"> </td></tr> </table> No options were granted under the 2012 Plan for the year ended December 31, 2021. Share-based compensation expense recognized in the Consolidated Statements of Operations is based on awards ultimately expected to vest, therefore, awards are reduced for estimated forfeitures. The accounting standard requires forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. <p id="xdx_895_eus-gaap--ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_zt825SnNDqwa" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Total share-based compensation expense, related to the Company’s share-based awards, recognized for the years ended December 31, was comprised as follows: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">(Dollars in thousands)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 74%; text-align: left">Cost of cryptocurrency revenue</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensation_pn3n3_c20210101__20211231__us-gaap--IncomeStatementLocationAxis__custom--CostOfCryptocurrencyRevenueMember_zoH45IMLkJvg" style="width: 10%; text-align: right" title="Share-based compensation expense">3</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--ShareBasedCompensation_pn3n3_c20200101__20201231__us-gaap--IncomeStatementLocationAxis__custom--CostOfCryptocurrencyRevenueMember_znPK2WyWoiQl" style="width: 10%; text-align: right" title="Share-based compensation expense">—</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Selling, general and administrative</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98D_eus-gaap--ShareBasedCompensation_c20210101__20211231__us-gaap--IncomeStatementLocationAxis__custom--SellingGeneralAndAdministrativeMember_pn3n3" style="border-bottom: Black 1pt solid; text-align: right" title="Share-based compensation expense">1,938</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--ShareBasedCompensation_pn3n3_c20200101__20201231__us-gaap--IncomeStatementLocationAxis__custom--SellingGeneralAndAdministrativeMember_zOIFTlFIUFKl" style="border-bottom: Black 1pt solid; text-align: right" title="Share-based compensation expense">40</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Share-based compensation expense</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensation_c20210101__20211231_pn3n3" style="border-bottom: Black 2.5pt double; text-align: right" title="Share-based compensation expense">1,941</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_980_eus-gaap--ShareBasedCompensation_pn3n3_c20200101__20201231_zwoYSIjuzj43" style="border-bottom: Black 2.5pt double; text-align: right" title="Share-based compensation expense">40</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Total unrecognized compensation costs related to non-vested stock options as of December 31, 2021 and December 31, 2020 is approximately $<span id="xdx_900_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_iI_dm_c20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zEHvs4xOom82" title="Total unrecognized compensation costs - options">1.9 million and $<span id="xdx_902_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_iI_pn3n3_c20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zz3aAWfgbPLi" title="Total unrecognized compensation costs - options">78 thousand, respectively, and is expected to be recognized over a weighted-average remaining vesting period of approximately <span id="xdx_90B_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_dtYxL_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z4flwK6TM7e3" title="Weighted-average remaining vesting period::XDX::P2Y4M2D">2.34 years and <span id="xdx_906_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_dtYxL_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z7gTQvfh6gB2" title="Weighted-average remaining vesting period::XDX::P2Y6M18D">2.55 years, respectively. Presented below is a summary of the Company’s stock option activity for the Plans for the years ended December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 74%; text-align: left">Shares under option, beginning</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zGxS6lQKEkp7" style="width: 10%; text-align: right" title="Shares under option, beginning">398,750</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zaA3t4dnQxNi" style="width: 10%; text-align: right" title="Shares under option, beginning">527,875</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Granted</td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pii_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zSLtuuTbusN" style="text-align: right" title="Granted">716,200</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pii_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zJdKv4J46EZk" style="text-align: right" title="Granted">50,000</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Exercised</td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zbBBCsFgSoMb" style="text-align: right" title="Exercised">(123,400</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zn0iu7nMRt86" style="text-align: right" title="Exercised">(83,000</td><td style="text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Forfeited</td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_pii_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zal4grjtk1Wg" style="text-align: right" title="Forfeited">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_iN_pid_di_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zUZp8ouWZ9n3" style="text-align: right" title="Forfeited">(27,750</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 1pt">Expired/canceled</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod_pid_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z1ddj48OpAT6" style="border-bottom: Black 1pt solid; text-align: right" title="Expired/canceled">—</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod_iN_pid_di_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zyyegJ4vWKZ1" style="border-bottom: Black 1pt solid; text-align: right" title="Expired/canceled">(68,375</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 2.5pt">Shares under option, ending</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zHCEFfGXBNU8" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares under option, ending">991,550</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zotsm5OntqW8" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares under option, ending">398,750</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Options exercisable</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iI_pii_uShares_c20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zjhswiYutDs8" style="border-bottom: Black 2.5pt double; text-align: right" title="Options exercisable">385,800</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iI_pii_uShares_c20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zqyq2BeM23ai" style="border-bottom: Black 2.5pt double; text-align: right" title="Options exercisable">276,000</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Remaining shares available for granting of options</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_iI_pid_uShares_c20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zGp1BuH2aOz" style="border-bottom: Black 2.5pt double; text-align: right" title="Remaining shares available for granting of options">392,717</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_iI_pid_uShares_c20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zPL7vb9F7SO9" style="border-bottom: Black 2.5pt double; text-align: right" title="Remaining shares available for granting of options">11,125</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> The weighted average exercise price for the Company’s stock option activity for the Plans is as follows for each of the years ended December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 74%; text-align: left">Shares under option, beginning</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z4ycdkmq45l1" style="width: 10%; text-align: right" title="Weighted average exercise price under option, beginning">0.87</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zr4M1LKSUY0l" style="width: 10%; text-align: right" title="Weighted average exercise price under option, beginning">0.89</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Granted</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" style="text-align: right" title="Granted">7.20</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zJc3TQ9tqYU5" style="text-align: right" title="Granted">0.73</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Exercised</td><td> </td> <td style="text-align: left">$</td><td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" style="text-align: right" title="Exercised">0.83</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zBJtKMcCRNz7" style="text-align: right" title="Exercised">1.00</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Forfeited</td><td> </td> <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" style="text-align: right" title="Forfeited">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zvxffM9b8VX8" style="text-align: right" title="Forfeited">0.90</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Expired/canceled</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" style="text-align: right" title="Expired/canceled">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zI2h52JySVVj" style="text-align: right" title="Expired/canceled">0.73</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Shares under option, ending</td><td> </td> <td style="text-align: left">$</td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zImAlFjBGNsk" style="text-align: right" title="Weighted average exercise price under option, ending">5.44</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z9Sx6N3S5n78" style="text-align: right" title="Weighted average exercise price under option, ending">0.87</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Options exercisable, ending</td><td> </td> <td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_c20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" style="text-align: right" title="Weighted average exercise price under option exercisable, ending">4.10</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iI_pii_c20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zpDCdDd52dk9" style="text-align: right" title="Weighted average exercise price under option exercisable, ending">0.89</td><td style="text-align: left"> </td></tr> </table> The following table summarizes information for options outstanding and exercisable for the Plans as of December 31, 2021: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td colspan="13" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Outstanding</td><td style="border-bottom: Black 1pt solid; padding-bottom: 1pt; font-weight: bold"> </td><td style="border-bottom: Black 1pt solid; font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="10" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Exercisable</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted Average</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted Average</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="font-weight: bold">Exercise</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Remaining</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Average</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Remaining</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Average</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="font-weight: bold">Price Range</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Number</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Contractual Life</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Exercise Price</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Number</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Contractual Life</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Exercise Price</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 12%; text-align: left">$0.29 - $1.08</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_iI_pid_c20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option1Member_zwav2yebyRH5" style="width: 12%; text-align: right" title="Options Exercisable, Number">241,350</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_982_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option1Member_zESsMHoa80w5" style="width: 12%; text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P6Y2M30D">6.25</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option1Member_pii" style="width: 11%; text-align: right" title="Outstanding Options, Weighted Average Exercise Price">0.84</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 11%; text-align: right">165,600</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98B_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option1Member_zlmJ9eQM3Pfl" style="width: 12%; text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P5Y6M18D">5.55</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 11%; text-align: right">0.86</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">$1.09 - $1.20</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_iI_pid_c20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option2Member_zIwsWpQjYoT2" style="text-align: right" title="Options Exercisable, Number">34,000</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option2Member_zNr0Kdesz4nf" style="text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P3Y2M1D">3.17</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option2Member_pii" style="text-align: right" title="Outstanding Options, Weighted Average Exercise Price">1.20</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">34,000</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option2Member_zSkXJ7L40ACd" style="text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P3Y2M1D">3.17</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1.20</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">$6.84 - $11.10</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_984_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_iI_pid_c20211231__us-gaap--AwardTypeAxis__custom--Option3Member_z5mObQBWi4tf" style="border-bottom: Black 1pt solid; text-align: right" title="Options Exercisable, Number">716,200</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option3Member_zvTlolHcVo44" style="text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P6Y7M28D">6.66</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_iI_pii_c20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option3Member_zhenPFNr5tNl" style="text-align: right" title="Outstanding Options, Weighted Average Exercise Price">7.20</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_984_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_iI_pii_c20211231__us-gaap--AwardTypeAxis__custom--Option3Member_zibSnIWlglVj" style="border-bottom: Black 1pt solid; text-align: right" title="Options Exercisable, Number">186,200</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option3Member_zntzoaNJQ3Ri" style="text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P4Y4M9D">4.36</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="text-align: left">$</td><td style="text-align: right">7.52</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: right"> </td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_iI_pid_c20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zok0PweKwVBg" style="border-bottom: Black 2.5pt double; text-align: right" title="Options Exercisable, Number">991,550</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td id="xdx_980_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__us-gaap--OptionMember_zaVFS21VLuS2" style="text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P6Y5M9D">6.44</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left">$</td><td id="xdx_98A_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" style="text-align: right" title="Outstanding Options, Weighted Average Exercise Price">5.44</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">385,800</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td id="xdx_98B_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__us-gaap--OptionMember_zizwiSKuGREb" style="text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P4Y9M7D">4.77</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left">$</td><td style="text-align: right">4.10</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> The aggregate intrinsic value (i.e. the difference between the closing stock price and the price to be paid by the option holder to exercise the option) is approximately $<span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iI_dm_c20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zKDo3U3v6Pu3" title="Aggregate intrinsic value of outstanding options">5.3 million for the Company’s outstanding options and approximately $<span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iI_dm_c20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zlZuASTWyYW9" title="Aggregate intrinsic value of outstanding options">2.6 million for the exercisable options as of December 31, 2021. The amounts are based on the Company’s closing stock price of $10.76 as of December 31, 2021. Non-vested restricted stock activity is as follows for the year ended December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 74%; text-align: left">Non-vested restricted stock balance, beginning January 1</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iS_pid_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zLVsEDEXhIY" style="width: 10%; text-align: right" title="Non-vested restricted stock, balance beginning">80,930</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iS_pid_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zheNnMJdqO5l" style="width: 10%; text-align: right" title="Non-vested restricted stock, balance beginning">—</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Non-vested restricted stock granted</td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_pii_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zr4e1QQHKHG7" style="text-align: right" title="Non-vested restricted stock granted">362,399</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_pii_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zyugNtWklpvb" style="text-align: right" title="Non-vested restricted stock granted">83,930</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Vested restricted stock</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_pii_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zE3DV84MGhXe" style="text-align: right" title="Vested restricted stock">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_pii_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zfnSz0caHPe8" style="text-align: right" title="Vested restricted stock">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Non-vested restricted stock exercised</td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod_pii_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zcjKfUQFAsW7" style="text-align: right" title="Non-vested restricted stock exercised">(37,962</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod_pid_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zcu4K3UfP8m9" style="text-align: right" title="Non-vested restricted stock exercised">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Non-vested restricted stock forfeited/expired</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_pii_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_z8yKZdMqapee" style="border-bottom: Black 1pt solid; text-align: right" title="Non-vested restricted stock forfeited/expired">—</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_iN_pid_di_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zhcwm0Pzh9vk" style="border-bottom: Black 1pt solid; text-align: right" title="Non-vested restricted stock forfeited/expired">(3,000</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Non-vested restricted stock balance, ending December 31</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iE_pid_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_z3I3xO6NFqf3" style="border-bottom: Black 2.5pt double; text-align: right" title="Non-vested restricted stock, balance ending">405,367</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iE_pid_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zxik6PyEoppi" style="border-bottom: Black 2.5pt double; text-align: right" title="Non-vested restricted stock, balance ending">80,930</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> <p id="xdx_895_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock_zKGYecGCTE4h" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">The weighted average fair value price for the Company’s restricted stock activity for the Plans is as follows for each of the years ended December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 74%; text-align: left">Restricted stock, beginning</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98F_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zm5oMTztHoN2" style="width: 10%; text-align: right" title="Weighted Average Exercise Price, Non-vested restricted stock, balance beginning">1.48</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98C_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zaFIXhlpKtcj" style="width: 10%; text-align: right" title="Weighted Average Exercise Price, Non-vested restricted stock, balance beginning">0.00</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Granted</td><td> </td> <td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_c20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_pii" style="text-align: right" title="Non-vested restricted stock granted">12.43</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iI_pii_c20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zBeJq5Cpk1Ml" style="text-align: right" title="Non-vested restricted stock granted">1.46</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Exercised</td><td> </td> <td style="text-align: left">$</td><td id="xdx_980_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageExercisedDateFairValue_iI_pid_c20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zSsm9XAa8Db2" style="text-align: right" title="Non-vested restricted stock exercised">1.34</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_982_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageExercisedDateFairValue_iI_pii_c20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zyv5XeADYH58" style="text-align: right" title="Non-vested restricted stock exercised">0.00</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Forfeited/ expired</td><td> </td> <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_pii" style="text-align: right" title="Non-vested restricted stock forfeited">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_z4hAB8vPirnl" style="text-align: right" title="Non-vested restricted stock forfeited">0.99</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Restricted stock, ending</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98B_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice_c20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_pii" style="text-align: right" title="Weighted Average Exercise Price, Non-vested restricted stock, balance ending">11.28</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98E_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice_iI_pii_c20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zDA0nn6ATNdj" style="text-align: right" title="Weighted Average Exercise Price, Non-vested restricted stock, balance ending">1.48</td><td style="text-align: left"> </td></tr> </table> At December 31, 2021 and 2020, there was approximately $<span id="xdx_90D_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_iI_dm_c20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zzZKMHSxLmil" title="Total unrecognized compensation costs - Restricted stock">3.1 million and $<span id="xdx_90C_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_iI_pn3n3_c20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zGT1Jo5jPo76" title="Total unrecognized compensation costs - Restricted stock">94 thousand of unrecognized compensation cost related to restricted stock plans. This cost is expected to be recognized over a remaining period of <span id="xdx_903_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_dtYxL_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zwLjrOfmfb0f" title="Weighted-average remaining vesting period::XDX::P3Y2M5D">3.18 years and <span id="xdx_903_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_dtYxL_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zE5yerYTGFpa" title="Weighted-average remaining vesting period::XDX::P2Y1M24D">2.15 years, respectively. Stock Warrants: <p id="xdx_892_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock_zTX2vgJh6Zq8" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The following is a summary of common stock warrant activity during the year ended December 31, 2021. The Company did not have or issue any warrants during the year ended December 31, 2020. <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Number of Warrant Shares</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Weighted Average Exercise Price ($)</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Balance, December 31, 2020</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber1_iS_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_z3ohtNH9uG4c" style="text-align: right" title="Shares under option, beginning">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zh0RFSk97hzc" style="text-align: right" title="Weighted average exercise price under option, beginning">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 74%">Granted</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zJSzRXadqwdf" style="width: 10%; text-align: right" title="Granted">2,775,122</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zSzBDGAhH427" style="width: 10%; text-align: right" title="Granted">12.67</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Exercised</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedInPeriodGross_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zGIrvOPs8CXb" style="text-align: right" title="Exercised">(581,610</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zSLS9bfnL408" style="text-align: right" title="Exercised">8.24</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Forfeited/ Expired</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_z9uwWsqGvUFe" style="border-bottom: Black 1pt solid; text-align: right" title="Forfeited/ Expired">—</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zA5Ef4k6eA3d" style="border-bottom: Black 1pt solid; text-align: right" title="Forfeited/ Expired">—</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt">Balance, December 31, 2021</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zzkygxleqDv8" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares under option, ending">2,193,512</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zZBUuHbnNe09" style="border-bottom: Black 2.5pt double; text-align: right" title="Weighted average exercise price under option, ending">13.85</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> As of December 31, 2021, the outstanding warrants have a weighted average remaining term of 4.78 years.

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<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized contextRef="AsOf2021-12-31_custom_Plan2012Member" decimals="INF" unitRef="Shares"> 600000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized contextRef="AsOf2021-12-31_custom_Plan2014Member" decimals="INF" unitRef="Shares"> 500000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross contextRef="From2021-01-012021-12-31_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 1460191 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross contextRef="From2021-01-012021-12-30_custom_Stock2021PlanMember_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 716200 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>

<us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares contextRef="From2021-01-012021-12-30_custom_Stock2021PlanMember_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 186200 </us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice contextRef="From2021-01-012021-12-30_custom_Stock2021PlanMember_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 7.52 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice>

<us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage contextRef="From2021-01-012021-12-30_custom_Stock2021PlanMember_us-gaap_StockOptionMember" decimals="INF" unitRef="Pure"> 10 </us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross contextRef="From2021-01-012021-12-30_custom_Stock2021PlanMember_us-gaap_StockOptionMember_custom_ThirdAnniversaryOnOrPriorClosingDateMember" decimals="INF" unitRef="Shares"> 530000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice contextRef="From2021-01-012021-12-30_custom_Stock2021PlanMember_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 7.08 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice>

<mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1 contextRef="From2021-01-012021-12-30_custom_Stock2021PlanMember_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 5.04 </mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1>

<us-gaap:StockIssuedDuringPeriodSharesNewIssues contextRef="From2021-01-012021-12-31_custom_RestrictedCommonStockMember" decimals="INF" unitRef="Shares"> 201926 </us-gaap:StockIssuedDuringPeriodSharesNewIssues>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod contextRef="From2021-01-012021-12-30_custom_Stock2021PlanMember_us-gaap_RestrictedStockMember" decimals="INF" unitRef="Shares"> 47500 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue contextRef="AsOf2021-12-31_custom_Stock2021PlanMember_us-gaap_RestrictedStockMember" decimals="INF" unitRef="USDPShares"> 11.10 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue>

<us-gaap:StockIssuedDuringPeriodSharesNewIssues contextRef="From2021-01-012021-12-31_custom_RestrictedStockOneMember" decimals="INF" unitRef="Shares"> 160473 </us-gaap:StockIssuedDuringPeriodSharesNewIssues>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue contextRef="AsOf2021-12-31_custom_Stock2021PlanMember_us-gaap_RestrictedStockUnitsRSUMember_srt_MinimumMember" decimals="INF" unitRef="USDPShares"> 11.10 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue contextRef="AsOf2021-12-31_custom_Stock2021PlanMember_us-gaap_RestrictedStockUnitsRSUMember_srt_MaximumMember" decimals="INF" unitRef="USDPShares"> 16.61 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod contextRef="From2021-01-012021-12-30_custom_Stock2021PlanMember_us-gaap_RestrictedStockUnitsRSUMember" decimals="INF" unitRef="Shares"> 15000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod contextRef="From2020-01-012020-01-14_custom_InvestmentCommitteeAndCeoMember" decimals="INF" unitRef="Shares"> 68930 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod contextRef="From2020-01-012020-01-14_custom_InvestmentCommitteeAndCeoMember_custom_Plan2012Member" decimals="INF" unitRef="Shares"> 67930 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod contextRef="From2020-01-012020-01-14_custom_InvestmentCommitteeAndCeoMember_custom_Plan2014Member" decimals="INF" unitRef="Shares"> 1000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue contextRef="AsOf2020-01-14_custom_InvestmentCommitteeAndCeoMember" decimals="INF" unitRef="USDPShares"> 0.99 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross contextRef="From2021-01-012021-12-31_custom_Plan2014Member" decimals="INF" unitRef="Shares"> 25000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice contextRef="From2021-01-012021-12-31_custom_Plan2014Member" decimals="INF" unitRef="USDPShares"> 0.70 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice>

<mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1 contextRef="From2021-01-012021-12-31_custom_Plan2014Member" decimals="INF" unitRef="USDPShares"> 0.57 </mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross contextRef="From2021-01-012021-12-31_custom_Plan2012Member" decimals="INF" unitRef="Shares"> 25000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice contextRef="From2021-01-012021-12-31_custom_Plan2012Member" decimals="INF" unitRef="USDPShares"> 0.75 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice>

<mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1 contextRef="From2021-01-012021-12-31_custom_Plan2012Member" decimals="INF" unitRef="USDPShares"> 0.61 </mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue1>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross contextRef="From2021-01-012021-12-31_custom_MtiCfoAndPresidentMember_custom_Plan2014Member" decimals="INF" unitRef="Shares"> 15000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice contextRef="From2021-01-012021-12-31_custom_MtiCfoAndPresidentMember_custom_Plan2014Member" decimals="INF" unitRef="USDPShares"> 3.63 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice>

<us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock contextRef="From2021-01-01to2021-12-31">

The following table presents the weighted-average assumptions used for options granted under the 2021 Plan: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 70%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 55%; text-align: left">Option term (years)</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_ddxL_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2021Member_zlaLEQajMJe3" style="width: 12%; text-align: right" title="Option term (years)::XDX::P4Y0M15D">4.04</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Volatility</td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pii_dp_uPure_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2021Member_zQZRNXvMz4Z8" style="text-align: right" title="Volatility">108.33</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Unvested forfeiture rate</td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_pid_dp_uPure_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2021Member_zM5WNvwcdpM6" style="text-align: right" title="Unvested forfeiture rate">0.18</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Risk-free interest rate</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pii_dp_uPure_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2021Member_zpYncO6UJxI9" style="text-align: right" title="Risk-free interest rate">0.84</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Dividend yield</td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pii_dp_uPure_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2021Member_ztqZAmBgDhTf" style="text-align: right" title="Dividend yield">0.00</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Weighted-average fair value per option granted</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue_pid_dp_uUSDPShares_c20210101__20211231__us-gaap--PlanNameAxis__custom--Plan2021Member_z4optgF3IVhk" style="text-align: right" title="Weighted-average fair value per option granted">5.04</td><td style="text-align: left"> </td></tr> </table> The following table presents the weighted-average assumptions used for options granted under the 2014 Plan: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 86%; text-align: left">Option term (years)</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_988_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtYxL_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2014Member_zDTAZqR70L58" style="width: 11%; text-align: right" title="Option term (years)::XDX::P6Y2M30D">6.25</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Volatility</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pii_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2014Member_zcmPOs2GQLli" style="text-align: right" title="Volatility">106.22</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Unvested forfeiture rate</td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_pii_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2014Member_z5Kfi5Gq5v79" style="text-align: right" title="Unvested forfeiture rate">0.20</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Risk-free interest rate</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pii_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2014Member_zYmlDkAW7hl4" style="text-align: right" title="Risk-free interest rate">0.31</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Dividend yield</td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pii_dp_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2014Member_zuPZl5M8aEhj" style="text-align: right" title="Dividend yield">0.00</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Weighted-average fair value per option granted</td><td> </td> <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue_pid_dp_uUSDPShares_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2014Member_z0NjtkDfQMFl" style="text-align: right" title="Weighted-average fair value per option granted">0.57</td><td style="text-align: left"> </td></tr> </table> No options were granted under the 2014 Plan for the year ended December 31, 2021. The following table presents the weighted-average assumptions used for options granted under the 2012 Plan: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 86%; text-align: left">Option term (years)</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_dtYxL_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2012Member_zdjqQSTvQGSi" style="width: 11%; text-align: right" title="Option term (years)::XDX::P6Y2M30D">6.25</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Volatility</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_pii_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2012Member_zQlQ2elwMUW2" style="text-align: right" title="Volatility">106.46</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Unvested forfeiture rate</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_ecustom--SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2_pii_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2012Member_zF2mYnFVAaHh" style="text-align: right" title="Unvested forfeiture rate">0.20</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Risk-free interest rate</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_pid_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2012Member_zpaoYvx2ahH8" style="text-align: right" title="Risk-free interest rate">0.28</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Dividend yield</td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_pii_dp_uPure_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2012Member_zSL2wzKvqXRg" style="text-align: right" title="Dividend yield">0.00</td><td style="text-align: left">%</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Weighted-average fair value per option granted</td><td> </td> <td style="text-align: left">$</td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue_pid_dp_uUSDPShares_c20200101__20201231__us-gaap--PlanNameAxis__custom--Plan2012Member_zYG7cjei8Hog" style="text-align: right" title="Weighted-average fair value per option granted">0.61</td><td style="text-align: left"> </td></tr> </table>

</us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate contextRef="From2021-01-012021-12-31_custom_Plan2021Member" decimals="INF" unitRef="Pure"> 1.0833 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate>

<mkty:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2 contextRef="From2021-01-012021-12-31_custom_Plan2021Member" decimals="INF" unitRef="Pure"> 0.0018 </mkty:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate contextRef="From2021-01-012021-12-31_custom_Plan2021Member" decimals="INF" unitRef="Pure"> 0.0084 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate contextRef="From2021-01-012021-12-31_custom_Plan2021Member" decimals="INF" unitRef="Pure"> 0.0000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue contextRef="From2021-01-012021-12-31_custom_Plan2021Member" decimals="INF" unitRef="USDPShares"> 0.0504 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate contextRef="From2020-01-012020-12-31_custom_Plan2014Member" decimals="INF" unitRef="Pure"> 1.0622 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate>

<mkty:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2 contextRef="From2020-01-012020-12-31_custom_Plan2014Member" decimals="INF" unitRef="Pure"> 0.0020 </mkty:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate contextRef="From2020-01-012020-12-31_custom_Plan2014Member" decimals="INF" unitRef="Pure"> 0.0031 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate contextRef="From2020-01-012020-12-31_custom_Plan2014Member" decimals="INF" unitRef="Pure"> 0.0000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue contextRef="From2020-01-012020-12-31_custom_Plan2014Member" decimals="INF" unitRef="USDPShares"> 0.0057 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate contextRef="From2020-01-012020-12-31_custom_Plan2012Member" decimals="INF" unitRef="Pure"> 1.0646 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate>

<mkty:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2 contextRef="From2020-01-012020-12-31_custom_Plan2012Member" decimals="INF" unitRef="Pure"> 0.0020 </mkty:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm2>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate contextRef="From2020-01-012020-12-31_custom_Plan2012Member" decimals="INF" unitRef="Pure"> 0.0028 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate contextRef="From2020-01-012020-12-31_custom_Plan2012Member" decimals="INF" unitRef="Pure"> 0.0000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue contextRef="From2020-01-012020-12-31_custom_Plan2012Member" decimals="INF" unitRef="USDPShares"> 0.0061 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValue>

<us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_895_eus-gaap--ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_zt825SnNDqwa" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Total share-based compensation expense, related to the Company’s share-based awards, recognized for the years ended December 31, was comprised as follows: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">(Dollars in thousands)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 74%; text-align: left">Cost of cryptocurrency revenue</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensation_pn3n3_c20210101__20211231__us-gaap--IncomeStatementLocationAxis__custom--CostOfCryptocurrencyRevenueMember_zoH45IMLkJvg" style="width: 10%; text-align: right" title="Share-based compensation expense">3</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--ShareBasedCompensation_pn3n3_c20200101__20201231__us-gaap--IncomeStatementLocationAxis__custom--CostOfCryptocurrencyRevenueMember_znPK2WyWoiQl" style="width: 10%; text-align: right" title="Share-based compensation expense">—</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Selling, general and administrative</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98D_eus-gaap--ShareBasedCompensation_c20210101__20211231__us-gaap--IncomeStatementLocationAxis__custom--SellingGeneralAndAdministrativeMember_pn3n3" style="border-bottom: Black 1pt solid; text-align: right" title="Share-based compensation expense">1,938</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--ShareBasedCompensation_pn3n3_c20200101__20201231__us-gaap--IncomeStatementLocationAxis__custom--SellingGeneralAndAdministrativeMember_zOIFTlFIUFKl" style="border-bottom: Black 1pt solid; text-align: right" title="Share-based compensation expense">40</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Share-based compensation expense</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensation_c20210101__20211231_pn3n3" style="border-bottom: Black 2.5pt double; text-align: right" title="Share-based compensation expense">1,941</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_980_eus-gaap--ShareBasedCompensation_pn3n3_c20200101__20201231_zwoYSIjuzj43" style="border-bottom: Black 2.5pt double; text-align: right" title="Share-based compensation expense">40</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock>

<us-gaap:ShareBasedCompensation contextRef="From2021-01-012021-12-31_custom_CostOfCryptocurrencyRevenueMember" decimals="-3" unitRef="USD"> 3000 </us-gaap:ShareBasedCompensation>

<us-gaap:ShareBasedCompensation contextRef="From2021-01-012021-12-31_custom_SellingGeneralAndAdministrativeMember" decimals="-3" unitRef="USD"> 1938000 </us-gaap:ShareBasedCompensation>

<us-gaap:ShareBasedCompensation contextRef="From2020-01-012020-12-31_custom_SellingGeneralAndAdministrativeMember" decimals="-3" unitRef="USD"> 40000 </us-gaap:ShareBasedCompensation>

<us-gaap:ShareBasedCompensation contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 1941000 </us-gaap:ShareBasedCompensation>

<us-gaap:ShareBasedCompensation contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 40000 </us-gaap:ShareBasedCompensation>

<us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions contextRef="AsOf2021-12-31_us-gaap_StockOptionMember" decimals="0" unitRef="USD"> 1900000 </us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions>

<us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions contextRef="AsOf2020-12-31_us-gaap_StockOptionMember" decimals="-3" unitRef="USD"> 78000 </us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions>

<us-gaap:ScheduleOfOtherShareBasedCompensationActivityTableTextBlock contextRef="From2021-01-01to2021-12-31">

Presented below is a summary of the Company’s stock option activity for the Plans for the years ended December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 74%; text-align: left">Shares under option, beginning</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zGxS6lQKEkp7" style="width: 10%; text-align: right" title="Shares under option, beginning">398,750</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zaA3t4dnQxNi" style="width: 10%; text-align: right" title="Shares under option, beginning">527,875</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Granted</td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pii_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zSLtuuTbusN" style="text-align: right" title="Granted">716,200</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pii_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zJdKv4J46EZk" style="text-align: right" title="Granted">50,000</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Exercised</td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zbBBCsFgSoMb" style="text-align: right" title="Exercised">(123,400</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zn0iu7nMRt86" style="text-align: right" title="Exercised">(83,000</td><td style="text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Forfeited</td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_pii_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zal4grjtk1Wg" style="text-align: right" title="Forfeited">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_iN_pid_di_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zUZp8ouWZ9n3" style="text-align: right" title="Forfeited">(27,750</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 1pt">Expired/canceled</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod_pid_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z1ddj48OpAT6" style="border-bottom: Black 1pt solid; text-align: right" title="Expired/canceled">—</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod_iN_pid_di_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zyyegJ4vWKZ1" style="border-bottom: Black 1pt solid; text-align: right" title="Expired/canceled">(68,375</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 2.5pt">Shares under option, ending</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zHCEFfGXBNU8" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares under option, ending">991,550</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zotsm5OntqW8" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares under option, ending">398,750</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Options exercisable</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iI_pii_uShares_c20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zjhswiYutDs8" style="border-bottom: Black 2.5pt double; text-align: right" title="Options exercisable">385,800</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iI_pii_uShares_c20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zqyq2BeM23ai" style="border-bottom: Black 2.5pt double; text-align: right" title="Options exercisable">276,000</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Remaining shares available for granting of options</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_iI_pid_uShares_c20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zGp1BuH2aOz" style="border-bottom: Black 2.5pt double; text-align: right" title="Remaining shares available for granting of options">392,717</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_iI_pid_uShares_c20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zPL7vb9F7SO9" style="border-bottom: Black 2.5pt double; text-align: right" title="Remaining shares available for granting of options">11,125</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> The weighted average exercise price for the Company’s stock option activity for the Plans is as follows for each of the years ended December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 74%; text-align: left">Shares under option, beginning</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z4ycdkmq45l1" style="width: 10%; text-align: right" title="Weighted average exercise price under option, beginning">0.87</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zr4M1LKSUY0l" style="width: 10%; text-align: right" title="Weighted average exercise price under option, beginning">0.89</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Granted</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" style="text-align: right" title="Granted">7.20</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zJc3TQ9tqYU5" style="text-align: right" title="Granted">0.73</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Exercised</td><td> </td> <td style="text-align: left">$</td><td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" style="text-align: right" title="Exercised">0.83</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zBJtKMcCRNz7" style="text-align: right" title="Exercised">1.00</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Forfeited</td><td> </td> <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" style="text-align: right" title="Forfeited">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zvxffM9b8VX8" style="text-align: right" title="Forfeited">0.90</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Expired/canceled</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" style="text-align: right" title="Expired/canceled">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zI2h52JySVVj" style="text-align: right" title="Expired/canceled">0.73</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Shares under option, ending</td><td> </td> <td style="text-align: left">$</td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zImAlFjBGNsk" style="text-align: right" title="Weighted average exercise price under option, ending">5.44</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_z9Sx6N3S5n78" style="text-align: right" title="Weighted average exercise price under option, ending">0.87</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Options exercisable, ending</td><td> </td> <td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_c20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" style="text-align: right" title="Weighted average exercise price under option exercisable, ending">4.10</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iI_pii_c20201231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zpDCdDd52dk9" style="text-align: right" title="Weighted average exercise price under option exercisable, ending">0.89</td><td style="text-align: left"> </td></tr> </table>

</us-gaap:ScheduleOfOtherShareBasedCompensationActivityTableTextBlock>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber contextRef="AsOf2020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 398750 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber contextRef="AsOf2019-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 527875 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross contextRef="From2021-01-012021-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 716200 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross contextRef="From2020-01-012020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 50000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>

<us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised contextRef="From2021-01-012021-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 123400 </us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised>

<us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised contextRef="From2020-01-012020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 83000 </us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod contextRef="From2020-01-012020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 27750 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod contextRef="From2020-01-012020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 68375 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber contextRef="AsOf2021-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 991550 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber contextRef="AsOf2021-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 385800 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber contextRef="AsOf2020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 276000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant contextRef="AsOf2021-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 392717 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant contextRef="AsOf2020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 11125 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice contextRef="AsOf2020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 0.87 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice contextRef="AsOf2019-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 0.89 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice contextRef="From2021-01-012021-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 7.20 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice contextRef="From2020-01-012020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 0.73 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice contextRef="From2021-01-012021-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 0.83 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice contextRef="From2020-01-012020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 1.00 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice contextRef="From2020-01-012020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 0.90 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice contextRef="From2020-01-012020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 0.73 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice contextRef="AsOf2021-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 5.44 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice contextRef="AsOf2021-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 4.10 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice contextRef="AsOf2020-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 0.89 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice>

<us-gaap:ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock contextRef="From2021-01-01to2021-12-31">

The following table summarizes information for options outstanding and exercisable for the Plans as of December 31, 2021: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td colspan="13" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Outstanding</td><td style="border-bottom: Black 1pt solid; padding-bottom: 1pt; font-weight: bold"> </td><td style="border-bottom: Black 1pt solid; font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="10" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Exercisable</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted Average</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted Average</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="font-weight: bold">Exercise</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Remaining</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Average</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Remaining</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Average</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="font-weight: bold">Price Range</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Number</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Contractual Life</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Exercise Price</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Number</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Contractual Life</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Exercise Price</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 12%; text-align: left">$0.29 - $1.08</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_iI_pid_c20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option1Member_zwav2yebyRH5" style="width: 12%; text-align: right" title="Options Exercisable, Number">241,350</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_982_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option1Member_zESsMHoa80w5" style="width: 12%; text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P6Y2M30D">6.25</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option1Member_pii" style="width: 11%; text-align: right" title="Outstanding Options, Weighted Average Exercise Price">0.84</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 11%; text-align: right">165,600</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98B_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option1Member_zlmJ9eQM3Pfl" style="width: 12%; text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P5Y6M18D">5.55</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 11%; text-align: right">0.86</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">$1.09 - $1.20</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_iI_pid_c20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option2Member_zIwsWpQjYoT2" style="text-align: right" title="Options Exercisable, Number">34,000</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option2Member_zNr0Kdesz4nf" style="text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P3Y2M1D">3.17</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option2Member_pii" style="text-align: right" title="Outstanding Options, Weighted Average Exercise Price">1.20</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">34,000</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option2Member_zSkXJ7L40ACd" style="text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P3Y2M1D">3.17</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">1.20</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">$6.84 - $11.10</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_984_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_iI_pid_c20211231__us-gaap--AwardTypeAxis__custom--Option3Member_z5mObQBWi4tf" style="border-bottom: Black 1pt solid; text-align: right" title="Options Exercisable, Number">716,200</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option3Member_zvTlolHcVo44" style="text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P6Y7M28D">6.66</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_iI_pii_c20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option3Member_zhenPFNr5tNl" style="text-align: right" title="Outstanding Options, Weighted Average Exercise Price">7.20</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_984_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_iI_pii_c20211231__us-gaap--AwardTypeAxis__custom--Option3Member_zibSnIWlglVj" style="border-bottom: Black 1pt solid; text-align: right" title="Options Exercisable, Number">186,200</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--Option3Member_zntzoaNJQ3Ri" style="text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P4Y4M9D">4.36</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="text-align: left">$</td><td style="text-align: right">7.52</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: right"> </td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_iI_pid_c20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_zok0PweKwVBg" style="border-bottom: Black 2.5pt double; text-align: right" title="Options Exercisable, Number">991,550</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td id="xdx_980_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__us-gaap--OptionMember_zaVFS21VLuS2" style="text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P6Y5M9D">6.44</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left">$</td><td id="xdx_98A_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20211231__us-gaap--AwardTypeAxis__us-gaap--StockOptionMember_pii" style="text-align: right" title="Outstanding Options, Weighted Average Exercise Price">5.44</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td style="border-bottom: Black 2.5pt double; text-align: right">385,800</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left"> </td><td id="xdx_98B_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtYxL_c20210101__20211231__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__us-gaap--OptionMember_zizwiSKuGREb" style="text-align: right" title="Outstanding Options, Weighted Average Remaining Contractual Life::XDX::P4Y9M7D">4.77</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="text-align: left">$</td><td style="text-align: right">4.10</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</us-gaap:ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock>

<us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions contextRef="AsOf2021-12-31_custom_Option1Member" decimals="INF" unitRef="Shares"> 241350 </us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions>

<us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 contextRef="AsOf2021-12-31_custom_Option1Member" decimals="INF" unitRef="USDPShares"> 0.84 </us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1>

<us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions contextRef="AsOf2021-12-31_custom_Option2Member" decimals="INF" unitRef="Shares"> 34000 </us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions>

<us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 contextRef="AsOf2021-12-31_custom_Option2Member" decimals="INF" unitRef="USDPShares"> 1.20 </us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1>

<us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions contextRef="AsOf2021-12-31_custom_Option3Member" decimals="INF" unitRef="Shares"> 716200 </us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions>

<us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 contextRef="AsOf2021-12-31_custom_Option3Member41384453" decimals="INF" unitRef="USDPShares"> 7.20 </us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1>

<us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions contextRef="AsOf2021-12-31_custom_Option3Member" decimals="INF" unitRef="Shares"> 186200 </us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions>

<us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions contextRef="AsOf2021-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="Shares"> 991550 </us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions>

<us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 contextRef="AsOf2021-12-31_us-gaap_StockOptionMember" decimals="INF" unitRef="USDPShares"> 5.44 </us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue contextRef="AsOf2021-12-31_us-gaap_StockOptionMember" decimals="0" unitRef="USD"> 5300000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue contextRef="AsOf2020-12-31_us-gaap_StockOptionMember" decimals="0" unitRef="USD"> 2600000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue>

<us-gaap:SharePrice contextRef="AsOf2021-12-31" decimals="INF" unitRef="USDPShares"> 10.76 </us-gaap:SharePrice>

<us-gaap:NonvestedRestrictedStockSharesActivityTableTextBlock contextRef="From2021-01-01to2021-12-31">

Non-vested restricted stock activity is as follows for the year ended December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 74%; text-align: left">Non-vested restricted stock balance, beginning January 1</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iS_pid_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zLVsEDEXhIY" style="width: 10%; text-align: right" title="Non-vested restricted stock, balance beginning">80,930</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iS_pid_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zheNnMJdqO5l" style="width: 10%; text-align: right" title="Non-vested restricted stock, balance beginning">—</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Non-vested restricted stock granted</td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_pii_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zr4e1QQHKHG7" style="text-align: right" title="Non-vested restricted stock granted">362,399</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_pii_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zyugNtWklpvb" style="text-align: right" title="Non-vested restricted stock granted">83,930</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Vested restricted stock</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_pii_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zE3DV84MGhXe" style="text-align: right" title="Vested restricted stock">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_pii_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zfnSz0caHPe8" style="text-align: right" title="Vested restricted stock">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Non-vested restricted stock exercised</td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod_pii_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zcjKfUQFAsW7" style="text-align: right" title="Non-vested restricted stock exercised">(37,962</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod_pid_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zcu4K3UfP8m9" style="text-align: right" title="Non-vested restricted stock exercised">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Non-vested restricted stock forfeited/expired</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_pii_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_z8yKZdMqapee" style="border-bottom: Black 1pt solid; text-align: right" title="Non-vested restricted stock forfeited/expired">—</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_iN_pid_di_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zhcwm0Pzh9vk" style="border-bottom: Black 1pt solid; text-align: right" title="Non-vested restricted stock forfeited/expired">(3,000</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Non-vested restricted stock balance, ending December 31</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iE_pid_uShares_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_z3I3xO6NFqf3" style="border-bottom: Black 2.5pt double; text-align: right" title="Non-vested restricted stock, balance ending">405,367</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iE_pid_uShares_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zxik6PyEoppi" style="border-bottom: Black 2.5pt double; text-align: right" title="Non-vested restricted stock, balance ending">80,930</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</us-gaap:NonvestedRestrictedStockSharesActivityTableTextBlock>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber contextRef="AsOf2020-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="Shares"> 80930 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod contextRef="From2021-01-012021-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="Shares"> 362399 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod contextRef="From2020-01-012020-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="Shares"> 83930 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod>

<mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod contextRef="From2021-01-012021-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="Shares"> -37962 </mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriod>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod contextRef="From2020-01-012020-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="Shares"> 3000 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber contextRef="AsOf2021-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="Shares"> 405367 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_895_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock_zKGYecGCTE4h" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">The weighted average fair value price for the Company’s restricted stock activity for the Plans is as follows for each of the years ended December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 74%; text-align: left">Restricted stock, beginning</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98F_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zm5oMTztHoN2" style="width: 10%; text-align: right" title="Weighted Average Exercise Price, Non-vested restricted stock, balance beginning">1.48</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98C_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zaFIXhlpKtcj" style="width: 10%; text-align: right" title="Weighted Average Exercise Price, Non-vested restricted stock, balance beginning">0.00</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Granted</td><td> </td> <td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_c20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_pii" style="text-align: right" title="Non-vested restricted stock granted">12.43</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iI_pii_c20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zBeJq5Cpk1Ml" style="text-align: right" title="Non-vested restricted stock granted">1.46</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Exercised</td><td> </td> <td style="text-align: left">$</td><td id="xdx_980_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageExercisedDateFairValue_iI_pid_c20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zSsm9XAa8Db2" style="text-align: right" title="Non-vested restricted stock exercised">1.34</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_982_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageExercisedDateFairValue_iI_pii_c20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zyv5XeADYH58" style="text-align: right" title="Non-vested restricted stock exercised">0.00</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Forfeited/ expired</td><td> </td> <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_pii" style="text-align: right" title="Non-vested restricted stock forfeited">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_z4hAB8vPirnl" style="text-align: right" title="Non-vested restricted stock forfeited">0.99</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Restricted stock, ending</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98B_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice_c20211231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_pii" style="text-align: right" title="Weighted Average Exercise Price, Non-vested restricted stock, balance ending">11.28</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98E_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice_iI_pii_c20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockMember_zDA0nn6ATNdj" style="text-align: right" title="Weighted Average Exercise Price, Non-vested restricted stock, balance ending">1.48</td><td style="text-align: left"> </td></tr> </table>

</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock>

<mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice contextRef="AsOf2020-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="USDPShares"> 1.48 </mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice>

<mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice contextRef="AsOf2019-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="USDPShares"> 0.00 </mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue contextRef="AsOf2021-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="USDPShares"> 12.43 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue contextRef="AsOf2020-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="USDPShares"> 1.46 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue>

<mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageExercisedDateFairValue contextRef="AsOf2021-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="USDPShares"> 1.34 </mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageExercisedDateFairValue>

<mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageExercisedDateFairValue contextRef="AsOf2020-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="USDPShares"> 0.00 </mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageExercisedDateFairValue>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue contextRef="From2020-01-012020-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="USDPShares"> 0.99 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue>

<mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice contextRef="AsOf2021-12-31_us-gaap_RestrictedStockMember" decimals="INF" unitRef="USDPShares"> 11.28 </mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsOutstandingWeightedAverageExercisePrice>

<us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions contextRef="AsOf2021-12-31_us-gaap_RestrictedStockMember" decimals="0" unitRef="USD"> 3100000 </us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions>

<us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions contextRef="AsOf2020-12-31_us-gaap_RestrictedStockMember" decimals="-3" unitRef="USD"> 94000 </us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions>

<mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_892_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock_zTX2vgJh6Zq8" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The following is a summary of common stock warrant activity during the year ended December 31, 2021. The Company did not have or issue any warrants during the year ended December 31, 2020. <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Number of Warrant Shares</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">Weighted Average Exercise Price ($)</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Balance, December 31, 2020</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber1_iS_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_z3ohtNH9uG4c" style="text-align: right" title="Shares under option, beginning">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zh0RFSk97hzc" style="text-align: right" title="Weighted average exercise price under option, beginning">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 74%">Granted</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zJSzRXadqwdf" style="width: 10%; text-align: right" title="Granted">2,775,122</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zSzBDGAhH427" style="width: 10%; text-align: right" title="Granted">12.67</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Exercised</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_ecustom--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedInPeriodGross_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zGIrvOPs8CXb" style="text-align: right" title="Exercised">(581,610</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zSLS9bfnL408" style="text-align: right" title="Exercised">8.24</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Forfeited/ Expired</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_z9uwWsqGvUFe" style="border-bottom: Black 1pt solid; text-align: right" title="Forfeited/ Expired">—</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zA5Ef4k6eA3d" style="border-bottom: Black 1pt solid; text-align: right" title="Forfeited/ Expired">—</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt">Balance, December 31, 2021</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zzkygxleqDv8" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares under option, ending">2,193,512</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20210101__20211231__us-gaap--AwardTypeAxis__us-gaap--WarrantMember_zZBUuHbnNe09" style="border-bottom: Black 2.5pt double; text-align: right" title="Weighted average exercise price under option, ending">13.85</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardWarrantGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross contextRef="From2021-01-012021-12-31_us-gaap_WarrantMember41385093" decimals="INF" unitRef="Shares"> 2775122 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice contextRef="From2021-01-012021-12-31_us-gaap_WarrantMember41385093" decimals="INF" unitRef="USDPShares"> 12.67 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice>

<mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedInPeriodGross contextRef="From2021-01-012021-12-31_us-gaap_WarrantMember41385093" decimals="INF" unitRef="Shares"> -581610 </mkty:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisedInPeriodGross>

<us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice contextRef="From2021-01-012021-12-31_us-gaap_WarrantMember41385093" decimals="INF" unitRef="USDPShares"> 8.24 </us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber contextRef="AsOf2021-12-31_us-gaap_WarrantMember" decimals="INF" unitRef="Shares"> 2193512 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber>

<us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice contextRef="AsOf2021-12-31_us-gaap_WarrantMember" decimals="INF" unitRef="USDPShares"> 13.85 </us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice>

<us-gaap:CommitmentsAndContingenciesDisclosureTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">14.</td><td>Commitments and Contingencies</td></tr></table> Commitments: Leases The Company determines whether an arrangement is a lease at inception. The Company has operating leases for certain manufacturing, laboratory, office facilities and certain equipment. The leases have remaining lease terms of less than one year to less than five years. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. As of December 31, 2021 and December 31, 2020, the Company has no assets recorded under finance leases. Lease expense for these leases is recognized on a straight-line basis over the lease term. For the twelve months ended December 31, total lease costs are comprised of the following: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td> </td> <td colspan="2" id="xdx_49F_20210101__20211231_zwHBTCkMPF3f" style="text-align: center"> </td><td> </td><td> </td> <td colspan="2" id="xdx_496_20200101__20201231_zk3PrNBPqqB5" style="text-align: center"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr id="xdx_40C_eus-gaap--OperatingLeaseCost_pn3n3_zsBW0djsDZ5d" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 74%; text-align: left">Operating lease cost</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">169</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">86</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--ShortTermLeaseCost_pn3n3_zjANl6ymDgH6" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Short-term lease cost</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">2</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--LeaseCost_iT_pn3n3_znOEEbJGiZs9" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt; padding-left: 0.125in">Total net lease cost</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">169</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">88</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Short-term leases are leases having a term of twelve months or less. The Company recognizes short-term leases on a straight-line basis and does not record a related lease asset or liability for such leases. Supplemental cash flows information related to leases for the twelve months ended December 31 was as follows: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td> </td> <td colspan="2" id="xdx_49F_20210101__20211231_zo6YNswRkshk" style="text-align: center"> </td><td> </td><td> </td> <td colspan="2" id="xdx_490_20200101__20201231_zeStl7BjpH1d"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: justify"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr id="xdx_402_ecustom--CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilitiesAbstract_iB_zJytQSbLla2b" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify">Cash paid for amounts included in the measurement of lease liabilities:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--OperatingLeasePaymentsUse_pn3n3_zWT0SpplEQG3" style="vertical-align: bottom; background-color: White"> <td style="width: 74%; text-align: justify; padding-left: 0.125in">Operating cash flows from operating leases</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">156</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">82</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_405_ecustom--NoncashActivityRightofuseAssetsObtainedInExchangeForLeaseObligationsAbstract_iB_zyPmLH6LacBk" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify">Non-Cash Activity Right-of-use assets obtained in exchange for lease obligations:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_pn3n3_zuvPkx6ADTr7" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-left: 0.125in">Operating leases</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">131</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">504</td><td style="text-align: left"> </td></tr> </table> Supplemental balance sheet information for the twelve months ended December 31 was as follows: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands, except lease term and discount rate)</td><td> </td> <td colspan="2" id="xdx_491_20211231_zfK4QY1mhop2"> </td><td> </td><td> </td> <td colspan="2" id="xdx_49E_20201231_zsfQXbp5Qbkh" style="text-align: center"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: justify"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify">Operating leases:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_ziO1BzIHthok" style="vertical-align: bottom; background-color: White"> <td style="width: 74%; text-align: justify; padding-left: 0.125in">Operating lease ROU asset</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">405</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">427</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--OperatingLeaseLiabilityCurrent_iI_pn3n3_zMRJ5sAvpQek" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-left: 0.125in">Current operating lease liabilities</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">184</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">134</td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_pn3n3_zDnfZ9ph3Sqg" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-bottom: 1pt; padding-left: 0.125in">Non-current operating lease liabilities</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">237</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">297</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--OperatingLeaseLiability_iTI_pn3n3_zUvMR7Et2UPf" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 2.5pt; padding-left: 0.25in">Total operating lease liabilities</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">421</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">431</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify">Operating leases:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_ecustom--OperatingLeaseRightOfUseAssetGross_iI_pn3n3_zB9AP1gdWOP" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-left: 0.125in">ROU assets</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">635</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">504</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_ecustom--OperatingLeaseRightOfUseAssetAccumulatedAmortization_iI_pn3n3_zojRL6vf9efh" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 1pt; padding-left: 0.125in">Asset lease expense</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(230</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(77</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr id="xdx_406_eus-gaap--OperatingLeaseRightOfUseAsset_iTI_pn3n3_zTGPPYFrFnTi" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-bottom: 2.5pt; padding-left: 0.25in">ROU assets, net</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">405</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">427</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify">Weighted Average Remaining Lease Term (in years):</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-left: 0.125in">Operating leases</td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--OperatingLeaseWeightedAverageRemainingLeaseTerm1_iI_dxL_c20211231_z6FXvlKAQCLd" style="text-align: right" title="Weighted Average Remaining Lease Term (in years)::XDX::P2Y4M17D">2.38</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_eus-gaap--OperatingLeaseWeightedAverageRemainingLeaseTerm1_iI_dxL_c20201231_z3OJG0SDyXK2" style="text-align: right" title="::XDX::P3Y1M2D">3.09</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify">Weighted Average Discount Rate:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--OperatingLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_zeyXDaLNWYRf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-left: 0.125in">Operating leases</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">3.83</td><td style="text-align: left">%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">3.81</td><td style="text-align: left">%</td></tr> </table> Maturities of operating lease liabilities are as follows for the year ending December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: justify">(Dollars in thousands)</td><td> </td> <td colspan="2" id="xdx_491_20211231_zUHtEXarR1W4" style="text-align: center"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: justify"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr id="xdx_40F_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_zZxb71NS1w62" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 87%; text-align: left">2022</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">197</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_z9y6czn4DaN" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; text-indent: -19pt; padding-left: 19pt">2023</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">159</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_zZFPoX3AQOD2" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-bottom: 1pt">2024</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">85</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iTI_pn3n3_zjxuJfe4wJk1" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-left: 0.125in">Total lease payments</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">441</td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_zRVXUAqfUdz6" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-bottom: 1pt">Less: imputed interest</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(20</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr id="xdx_40F_eus-gaap--OperatingLeaseLiability_iTI_pn3n3_zd4qmySuY2V4" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; text-indent: 0; padding-left: 0.125in">Total lease obligations</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">421</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--OperatingLeaseLiabilityCurrent_iI_pn3n3_zfBq1Bp7OuZ8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-bottom: 1pt">Less: current obligations</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">184</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--OperatingLeaseLiabilityNoncurrent_iTI_pn3n3_z7YKr2Agxpbf" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 2.5pt; text-indent: 0; padding-left: 0.125in">Long-term lease obligations</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">237</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> As of December 31, 2021, except for the ground lease entered into as described in Note 1, there were no additional operating lease commitments that had not yet commenced. Contingencies: Legal We are subject to legal proceedings, claims and liabilities which arise in the ordinary course of business. When applicable, we accrue for losses associated with legal claims when such losses are probable and can be reasonably estimated. These accruals are adjusted as additional information becomes available or circumstances change. Legal fees are charged to expense as they are incurred. The Company has been named as a party in the December 19, 2019 United States Environmental Protection Agency (“EPA”) Demand Letter regarding the Malta Rocket Fuel Area Superfund Site (Site) located in Malta and Stillwater, New York in connection with an alleged release of hazardous materials into the environment. The EPA is seeking reimbursement of response costs from all named parties in the amount of approximately $358,000 plus interest in connection with the investigation and disposal activities associated with the various drum caches discovered at the Site, issuance of the Explanation of Significant Differences (“ESD”) of the Site, and implementation of the work contemplated by the ESD. The Company considers the likelihood of a material adverse outcome to be remote and does not currently anticipate that any expense or liability it may incur as a result of these matters in the future will be material to the Company’s financial condition.

</us-gaap:CommitmentsAndContingenciesDisclosureTextBlock>

<us-gaap:LeaseCostTableTextBlock contextRef="From2021-01-01to2021-12-31">

Lease expense for these leases is recognized on a straight-line basis over the lease term. For the twelve months ended December 31, total lease costs are comprised of the following: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td> </td> <td colspan="2" id="xdx_49F_20210101__20211231_zwHBTCkMPF3f" style="text-align: center"> </td><td> </td><td> </td> <td colspan="2" id="xdx_496_20200101__20201231_zk3PrNBPqqB5" style="text-align: center"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr id="xdx_40C_eus-gaap--OperatingLeaseCost_pn3n3_zsBW0djsDZ5d" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 74%; text-align: left">Operating lease cost</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">169</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">86</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--ShortTermLeaseCost_pn3n3_zjANl6ymDgH6" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Short-term lease cost</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">2</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--LeaseCost_iT_pn3n3_znOEEbJGiZs9" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt; padding-left: 0.125in">Total net lease cost</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">169</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">88</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</us-gaap:LeaseCostTableTextBlock>

<us-gaap:OperatingLeaseCost contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 169000 </us-gaap:OperatingLeaseCost>

<us-gaap:OperatingLeaseCost contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 86000 </us-gaap:OperatingLeaseCost>

<us-gaap:ShortTermLeaseCost contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 2000 </us-gaap:ShortTermLeaseCost>

<us-gaap:LeaseCost contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 169000 </us-gaap:LeaseCost>

<us-gaap:LeaseCost contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 88000 </us-gaap:LeaseCost>

<us-gaap:ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock contextRef="From2021-01-01to2021-12-31">

Supplemental cash flows information related to leases for the twelve months ended December 31 was as follows: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td> </td> <td colspan="2" id="xdx_49F_20210101__20211231_zo6YNswRkshk" style="text-align: center"> </td><td> </td><td> </td> <td colspan="2" id="xdx_490_20200101__20201231_zeStl7BjpH1d"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: justify"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr id="xdx_402_ecustom--CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilitiesAbstract_iB_zJytQSbLla2b" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify">Cash paid for amounts included in the measurement of lease liabilities:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--OperatingLeasePaymentsUse_pn3n3_zWT0SpplEQG3" style="vertical-align: bottom; background-color: White"> <td style="width: 74%; text-align: justify; padding-left: 0.125in">Operating cash flows from operating leases</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">156</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">82</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_405_ecustom--NoncashActivityRightofuseAssetsObtainedInExchangeForLeaseObligationsAbstract_iB_zyPmLH6LacBk" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify">Non-Cash Activity Right-of-use assets obtained in exchange for lease obligations:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_pn3n3_zuvPkx6ADTr7" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-left: 0.125in">Operating leases</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">131</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">504</td><td style="text-align: left"> </td></tr> </table>

</us-gaap:ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock>

<us-gaap:OperatingLeasePaymentsUse contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 156000 </us-gaap:OperatingLeasePaymentsUse>

<us-gaap:OperatingLeasePaymentsUse contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 82000 </us-gaap:OperatingLeasePaymentsUse>

<us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 131000 </us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability>

<us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 504000 </us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability>

<us-gaap:OperatingLeasesOfLesseeDisclosureTextBlock contextRef="From2021-01-01to2021-12-31">

Supplemental balance sheet information for the twelve months ended December 31 was as follows: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands, except lease term and discount rate)</td><td> </td> <td colspan="2" id="xdx_491_20211231_zfK4QY1mhop2"> </td><td> </td><td> </td> <td colspan="2" id="xdx_49E_20201231_zsfQXbp5Qbkh" style="text-align: center"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: justify"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify">Operating leases:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--OperatingLeaseRightOfUseAsset_iI_pn3n3_ziO1BzIHthok" style="vertical-align: bottom; background-color: White"> <td style="width: 74%; text-align: justify; padding-left: 0.125in">Operating lease ROU asset</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">405</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">427</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--OperatingLeaseLiabilityCurrent_iI_pn3n3_zMRJ5sAvpQek" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-left: 0.125in">Current operating lease liabilities</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">184</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">134</td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_pn3n3_zDnfZ9ph3Sqg" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-bottom: 1pt; padding-left: 0.125in">Non-current operating lease liabilities</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">237</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">297</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--OperatingLeaseLiability_iTI_pn3n3_zUvMR7Et2UPf" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 2.5pt; padding-left: 0.25in">Total operating lease liabilities</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">421</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">431</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify">Operating leases:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_ecustom--OperatingLeaseRightOfUseAssetGross_iI_pn3n3_zB9AP1gdWOP" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-left: 0.125in">ROU assets</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">635</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">504</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_ecustom--OperatingLeaseRightOfUseAssetAccumulatedAmortization_iI_pn3n3_zojRL6vf9efh" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 1pt; padding-left: 0.125in">Asset lease expense</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(230</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(77</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr id="xdx_406_eus-gaap--OperatingLeaseRightOfUseAsset_iTI_pn3n3_zTGPPYFrFnTi" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-bottom: 2.5pt; padding-left: 0.25in">ROU assets, net</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">405</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">427</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify">Weighted Average Remaining Lease Term (in years):</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-left: 0.125in">Operating leases</td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--OperatingLeaseWeightedAverageRemainingLeaseTerm1_iI_dxL_c20211231_z6FXvlKAQCLd" style="text-align: right" title="Weighted Average Remaining Lease Term (in years)::XDX::P2Y4M17D">2.38</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_982_eus-gaap--OperatingLeaseWeightedAverageRemainingLeaseTerm1_iI_dxL_c20201231_z3OJG0SDyXK2" style="text-align: right" title="::XDX::P3Y1M2D">3.09</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify">Weighted Average Discount Rate:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--OperatingLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_zeyXDaLNWYRf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-left: 0.125in">Operating leases</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">3.83</td><td style="text-align: left">%</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">3.81</td><td style="text-align: left">%</td></tr> </table>

</us-gaap:OperatingLeasesOfLesseeDisclosureTextBlock>

<us-gaap:OperatingLeaseRightOfUseAsset contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 405000 </us-gaap:OperatingLeaseRightOfUseAsset>

<us-gaap:OperatingLeaseRightOfUseAsset contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 427000 </us-gaap:OperatingLeaseRightOfUseAsset>

<us-gaap:OperatingLeaseLiabilityCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 184000 </us-gaap:OperatingLeaseLiabilityCurrent>

<us-gaap:OperatingLeaseLiabilityCurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 134000 </us-gaap:OperatingLeaseLiabilityCurrent>

<us-gaap:OperatingLeaseLiabilityNoncurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 237000 </us-gaap:OperatingLeaseLiabilityNoncurrent>

<us-gaap:OperatingLeaseLiabilityNoncurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 297000 </us-gaap:OperatingLeaseLiabilityNoncurrent>

<us-gaap:OperatingLeaseLiability contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 421000 </us-gaap:OperatingLeaseLiability>

<us-gaap:OperatingLeaseLiability contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 431000 </us-gaap:OperatingLeaseLiability>

<mkty:OperatingLeaseRightOfUseAssetGross contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 635000 </mkty:OperatingLeaseRightOfUseAssetGross>

<mkty:OperatingLeaseRightOfUseAssetGross contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 504000 </mkty:OperatingLeaseRightOfUseAssetGross>

<mkty:OperatingLeaseRightOfUseAssetAccumulatedAmortization contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> -230000 </mkty:OperatingLeaseRightOfUseAssetAccumulatedAmortization>

<mkty:OperatingLeaseRightOfUseAssetAccumulatedAmortization contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> -77000 </mkty:OperatingLeaseRightOfUseAssetAccumulatedAmortization>

<us-gaap:OperatingLeaseRightOfUseAsset contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 405000 </us-gaap:OperatingLeaseRightOfUseAsset>

<us-gaap:OperatingLeaseRightOfUseAsset contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 427000 </us-gaap:OperatingLeaseRightOfUseAsset>

<us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent contextRef="AsOf2021-12-31" decimals="INF" unitRef="Pure"> 0.0383 </us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent>

<us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent contextRef="AsOf2020-12-31" decimals="INF" unitRef="Pure"> 0.0381 </us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent>

<us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock contextRef="From2021-01-01to2021-12-31">

Maturities of operating lease liabilities are as follows for the year ending December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="text-align: justify">(Dollars in thousands)</td><td> </td> <td colspan="2" id="xdx_491_20211231_zUHtEXarR1W4" style="text-align: center"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: justify"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr id="xdx_40F_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_zZxb71NS1w62" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 87%; text-align: left">2022</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">197</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_z9y6czn4DaN" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; text-indent: -19pt; padding-left: 19pt">2023</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">159</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_zZFPoX3AQOD2" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-bottom: 1pt">2024</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">85</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iTI_pn3n3_zjxuJfe4wJk1" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-left: 0.125in">Total lease payments</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">441</td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_zRVXUAqfUdz6" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-bottom: 1pt">Less: imputed interest</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">(20</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr id="xdx_40F_eus-gaap--OperatingLeaseLiability_iTI_pn3n3_zd4qmySuY2V4" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; text-indent: 0; padding-left: 0.125in">Total lease obligations</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">421</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--OperatingLeaseLiabilityCurrent_iI_pn3n3_zfBq1Bp7OuZ8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-bottom: 1pt">Less: current obligations</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">184</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--OperatingLeaseLiabilityNoncurrent_iTI_pn3n3_z7YKr2Agxpbf" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 2.5pt; text-indent: 0; padding-left: 0.125in">Long-term lease obligations</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">237</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock>

<us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 197000 </us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo>

<us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 159000 </us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree>

<us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 85000 </us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour>

<us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 441000 </us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue>

<us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 20000 </us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount>

<us-gaap:OperatingLeaseLiability contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 421000 </us-gaap:OperatingLeaseLiability>

<us-gaap:OperatingLeaseLiabilityCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 184000 </us-gaap:OperatingLeaseLiabilityCurrent>

<us-gaap:OperatingLeaseLiabilityNoncurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 237000 </us-gaap:OperatingLeaseLiabilityNoncurrent>

<us-gaap:SettlementLiabilitiesCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 358000000 </us-gaap:SettlementLiabilitiesCurrent>

<us-gaap:RelatedPartyTransactionsDisclosureTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">15.</td><td>Related Party Transactions</td></tr></table> MeOH Power, Inc. On December 18, 2013, MeOH Power, Inc. and the Company executed a Senior Demand Promissory Note (the “Note”) in the amount of $<span id="xdx_902_eus-gaap--ProfessionalAndContractServicesExpense_pn3n3_c20210101__20211231__srt--CounterpartyNameAxis__custom--SolunaMember__us-gaap--NonmonetaryTransactionTypeAxis__custom--OperatingAndManagementAgreement3Member_zcxIqpCUPEa">380 thousand to secure the intercompany amounts due to the Company from MeOH Power, Inc. upon the deconsolidation of MeOH Power, Inc. Interest accrues on the Note at the Prime Rate in effect on the first business day of the month, as published in the Wall Street Journal. At the Company’s option, all or part of the principal and interest due on this Note may be converted to shares of common stock of MeOH Power, Inc. at a rate of $0.07 per share. Interest began accruing on January 1, 2014. The Company recorded a full allowance against the Note. As of December 31, 2021 and December 31, 2020, $329 thousand and $321 thousand, respectively, of principal and interest are available to convert into shares of common stock of MeOH Power, Inc. Any adjustments to the allowance are recorded as miscellaneous expense during the period incurred. Legal Services During the years ended December 31, 2021 and December 31, 2020, the Company incurred $19 thousand and $95 thousand, respectively, to Couch White, LLP for legal services associated with contract review. A partner at Couch White, LLP is an immediate family member of one of our Directors. HEL Transactions On January 8, 2020, the Company formed SCI as a wholly owned subsidiary to pursue a new business line focused on cryptocurrency and the blockchain ecosystem. In connection with this new business line, SCI established a facility to mine cryptocurrencies and integrate with the blockchain network. Pursuant to an Operating and Management Agreement dated January 13, 2020, by and between SCI and HEL, HEL assisted the Company, and later SCI, in developing, and is now operating, the cryptocurrency mining facility. The Operating and Management Agreement requires, among other things, that HEL provide project sourcing services to SCI, including acquisition negotiations and establishing an operating model, investments/financing timeline, and a project development path, as well as developmental and operational services, as directed by SCI, with respect to the applicable cryptocurrency mining facility in exchange for SCI’s payment to HEL of a one-time management fee ranging from $65,000 to $350,000 and profit-based success payments in the event that SCI achieves explicit profitability thresholds. These agreements also provided that once aggregate earnings before interest, taxes, depreciation, and amortization of the applicable mine exceeded the total amount of funding provided by SCI to HEL (whether pursuant to the applicable agreement or otherwise) for the purposes of creating, developing, assembling, and constructing the mine, HEL was entitled to ongoing success payments of 20.0% of the earnings before interest, taxes, depreciation, and amortization of the mine. As of December 31, 2021, $237 thousand of payments have been made , as certain Thresholds have been achieved, compared to no payments in 2020 as thresholds were not achieved. Pursuant to the Operating and Management Agreement, during the developmental phase of the cryptocurrency mining facility, which ended on March 14, 2020, HEL gathered and analyzed information with respect to SCI’s cryptocurrency mining efforts and produced budgets, financial models, and technical and operational plans, including a detailed business plan, that it delivered to SCI in March 2020 (the “Deliverables”), all of which was designed to assist with the efficient implementation of a cryptocurrency mine. The agreement provided that, following SCI’s acceptance of the Deliverables, which occurred on March 23, 2020, HEL, on behalf of SCI, would commence operations of the cryptocurrency mine in a manner that would allow SCI to mine and sell cryptocurrency. In that regard, on May 21, 2020, SCI acquired the intellectual property of GigaWatt, Inc. (“GigaWatt”) and certain other property and rights of GigaWatt associated with GigaWatt’s operation of a crypto-mining operation located in Washington State. The acquired assets formed the cornerstone of SCI’s current cryptocurrency mining operation. SCI sells for U.S. dollars all cryptocurrency it mines and is not in the business of accumulating cryptocurrency on its balance sheet for speculative gains. On October 22, 2020, SCI loaned HEL $112 thousand to acquire additional assets from the bankruptcy trustee for GigaWatt’s assets. On the same day, HEL transferred title of the assets to SCI, which under the terms thereof paid off the note. On November 19, 2020, SCI and HEL entered into a second Operating and Management Agreement related to a potential location for a cryptocurrency mine in the Southeast United States. In accordance with the terms of the agreement, which are consistent with the first Operating and Management agreement noted above, HEL is entitled to ongoing success payments of 20.0% of the earnings before interest, taxes, depreciation and amortization of the mine. SCI paid HEL $<span id="xdx_900_eus-gaap--ProfessionalAndContractServicesExpense_pn3n3_c20200101__20201231__srt--CounterpartyNameAxis__custom--SolunaMember__us-gaap--NonmonetaryTransactionTypeAxis__custom--OperatingAndManagementAgreement2Member_zBzkfSJdWEJ3">150 thousand in 2020 and $<span id="xdx_90D_eus-gaap--ProfessionalAndContractServicesExpense_pn3n3_c20210101__20211231__srt--CounterpartyNameAxis__custom--SolunaMember__us-gaap--NonmonetaryTransactionTypeAxis__custom--OperatingAndManagementAgreement2Member_zol9xAqwLTH2">221 thousand for the year ended December 31, 2021 related to the one-time fees. On December 1, 2020, SCI and HEL entered into a third Operating and Management Agreement with respect to a potential location for a cryptocurrency mine in the Southwestern United States. In accordance with the terms of the agreement, which are consistent with the first Operating and Management agreement noted above, HEL is entitled to ongoing success payments of 20.0% of the earnings before interest, taxes, depreciation and amortization of the mine. SCI paid HEL $<span id="xdx_90E_eus-gaap--ProfessionalAndContractServicesExpense_pn3n3_c20200101__20201231__srt--CounterpartyNameAxis__custom--SolunaMember__us-gaap--NonmonetaryTransactionTypeAxis__custom--OperatingAndManagementAgreement4Member_ztoSPSdwiJ37">38,000 during 2020 in relation to the one-time fees; this target location did not meet the business requirements to continue pursuing the potential acquisition, and as a result SCI will not make any further payments to HEL under this agreement. On February 8, 2021, SCI and HEL entered into a fourth Operating and Management Agreement related to a potential location for a cryptocurrency mine in the Southeast United States. In accordance with the terms of the agreement, which are consistent with the first Operating and Management agreement noted above, HEL is entitled to ongoing success payments of 20.0% of the earnings before interest, taxes, depreciation and amortization of the mine. SCI paid HEL $<span id="xdx_900_eus-gaap--ProfessionalAndContractServicesExpense_pn3n3_c20210101__20211231__srt--CounterpartyNameAxis__custom--SolunaMember__us-gaap--NonmonetaryTransactionTypeAxis__custom--OperatingAndManagementAgreement5Member_zp7TwJNMCZj" title="Cash Paid">544 thousand during the year ended December 31, 2021 in relation to the one-time fees. As of December 31, 2021 and 2020, the Company paid $245 and $77 thousand in expense reimbursements and other related fees in addition to the Operating and Management payments. Each Operating and Management Agreement, all of which were terminated effective November 5, 2021, pursuant to the Termination Agreement, among other things, required that HEL provide project sourcing services to SCI, including acquisition negotiations and establishing an operating model, investments/financing timeline, and project development path. Simultaneously with entering into the initial Operating and Management Agreement with HEL, the Company, pursuant to a purchase agreement it entered into with HEL, made a strategic investment in HEL by purchasing <span id="xdx_909_ecustom--InvestmentSharesPurchased_iI_pid_c20200113__srt--CounterpartyNameAxis__custom--SolunaMember__us-gaap--OtherInvestmentNotReadilyMarketableAxis__custom--ClassAPreferredSharesMember_zPv0L8qp7wN3" title="Investment shares purchased">158,730 Class A Preferred Shares of HEL for an aggregate purchase price of $500 thousand on January 13, 2020. After acceptance of the Deliverables, as required by the terms of the purchase agreement, on March 23, 2020, the Company purchased an additional <span id="xdx_905_ecustom--InvestmentSharesPurchased_iI_pii_uShares_c20200323__srt--CounterpartyNameAxis__custom--SolunaMember__us-gaap--OtherInvestmentNotReadilyMarketableAxis__custom--ClassAPreferredSharesMember_zE58EW4rjaz3">79,365 Class A Preferred Shares of HEL for an aggregate purchase price of $<span id="xdx_903_eus-gaap--PaymentsToAcquireInvestments_pn3n3_c20200322__20200323__srt--CounterpartyNameAxis__custom--SolunaMember__us-gaap--OtherInvestmentNotReadilyMarketableAxis__custom--ClassAPreferredSharesMember_zN9u1K5jRCgi">250 thousand. The Company also has the right, but not the obligation, to purchase additional equity securities of HEL and its subsidiaries (including additional Class A Preferred Shares of HEL) if HEL secures certain levels or types of project financing with respect to its own wind power generation facilities. Each preferred share may be converted at any time and without payment of additional consideration, into Common shares. The Company has additionally entered into a Side Letter Agreement, dated January 13, 2020, with HEL Technologies Investment I, LLC, a Delaware limited liability company that owns, on a fully diluted basis, 57.9% of HEL and is controlled by a Brookstone Partners-affiliated director of the Company. The Side Letter Agreement provides for the transfer to the Company, without the payment of any consideration by the Company, of additional Class A Preferred Shares of HEL in the event HEL issues additional equity below agreed-upon valuation thresholds. As discussed above, on October 29, 2021, we completed the Soluna Callisto acquisition pursuant to the Merger Agreement. The purpose of the transaction was for SCI to acquire substantially all of the assets (other than those assets physically located in Morocco) formerly held by HEL, which assets consisted of SCI’s existing pipeline of certain cryptocurrency mining projects that HEL previously transferred to SCI, which was formed expressly for this purpose, and to provide SCI with the opportunity to directly employ or retain the services of four individuals whose services it had retained through HEL prior to the merger. As a result of the merger, each share of common stock of Soluna Callisto issued and outstanding immediately prior to the effective time of the merger, other than shares owned by the Company or any of our subsidiaries, was cancelled and converted into the right to receive a proportionate share of the Merger Consideration. In connection with the Soluna Callisto acquisition, effective as of October 29, 2021, upon and subject to the terms and conditions of the Termination Agreement, on November 5, 2021: (1) the existing Operating and Management Agreements between HEL and SCI were terminated in all respects; and (2)(A) SCI paid HEL $725,000, (B) SHI issued to HEL the Termination Shares, and (C) HEL and SHI entered into an Amended and Restated Contingent Rights Agreement that, among other things, amended the existing Contingent Rights Agreement by and between HEL and SHI, dated January 13, 2020, to provide SHI the right to invest directly in certain cryptocurrency mining opportunities being pursued by HEL. The Termination Agreement required SHI to file a registration statement with the SEC to register the resale of the Termination Shares which occurred on February 14, 2022. Please see Note 5 for additional information regarding the Soluna Callisto acquisition and related transactions. Several of HEL’s equityholders are affiliated with Brookstone Partners, the investment firm that holds an equity interest in the Company through Brookstone Partners Acquisition XXIV, LLC. The Company’s two Brookstone-affiliated directors also serve as directors and, in one case, as an officer, of HEL and also have ownership interest in HEL. In light of these relationships, the various transactions by and between the Company and SCI, on the one hand, and HEL, on the other hand, were negotiated on behalf of the Company and SCI via an independent investment committee of Board and separate legal representation. The transactions were subsequently unanimously approved by both the independent investment committee and the full Board. Five of the Company’s directors have various affiliations with HEL. Michael Toporek, our Chief Executive Officer and a director, owns <span id="xdx_90D_ecustom--DescriptionOfDirectorOwns_c20210101__20211231__srt--TitleOfIndividualAxis__srt--ChiefExecutiveOfficerMember__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--MichaelToporekMember_zWf5jxQI4MB2" title="Description of director owns">(i) 90% of the equity of Soluna Technologies Investment I, LLC, which owns 57.9% of HEL and (ii) 100% of the equity of MJT Park Investors, Inc., which owns 3.1% of HEL, in each case on a fully-diluted basis. Mr. Toporek does not own directly, or indirectly, any equity interest in Tera Joule, LLC, which owns 9.2% of HEL; however, as a result of his 100% ownership of Brookstone IAC, Inc., which is the manager of Tera Joule, LLC, he has dispositive power over the equity interests that Tera Joule owns in HEL. In addition, one of the Company’s directors, Matthew E. Lipman, serves as a director and currently acting as President of HEL. Mr. Lipman does not directly own any equity interest in Tera Joule, LLC, <span id="xdx_903_ecustom--DescriptionOfDirectorOwns_c20210101__20211231__srt--TitleOfIndividualAxis__srt--ChiefExecutiveOfficerMember__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--MatthewELipmanMember_zr1qmxSslueh">which owns 9.2% of HEL; however, as a result of his position as a director and officer of Brookstone IAC, Inc., which is the manager of Tera Joule, LLC, he has dispositive power over the equity interests that Tera Joule owns in HEL. As a result, the approximate dollar value of the amount of Mr. Toporek’s and Mr. Lipman’s interest in the Company’s transactions with HEL through December 31, 2021, were $19.9 million and $0, respectively. John Belizaire and John Bottomley, who were elected to the Company’s Board of Directors upon the effective time of SCI’s acquisition of Soluna Callisto, serve as directors of HEL. In addition, Mr. Belizaire is the beneficial <span id="xdx_90A_ecustom--DescriptionOfDirectorOwns_c20210101__20211231__srt--TitleOfIndividualAxis__srt--ChiefExecutiveOfficerMember__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--MrBelizaireMember_zq9ufDq81Onk">owner of 1,317,567 shares of common stock of HEL and 102,380 Class Seed Preferred shares, which are convertible into 86,763 shares of common stock of HEL. These interests give Mr. Belizaire an ownership of 10.54% in HEL. Mr. Belizaire also owns an interest in HEL indirectly through his 5.0139% interest of Tera Joule, LLC’s 965,945 Class Seed Preferred shares, which are convertible into 818,596 shares of common stock of HEL. Mr. Bottomley is the beneficial owner of 96,189, or approximately 0.72%, of the outstanding shares of common stock of HEL. Finally, the Company’s director William P. Phelan served as an observer on HEL’s board of directors on behalf of the Company through March 2021. The Company’s investment in HEL is carried at the cost of investment and was $750 thousand as of December 31, 2021. The Company owned approximately 1.79% of HEL, calculated on a converted fully-diluted basis, as of December 31, 2021. The Company may enter into additional transactions with HEL in the future.

</us-gaap:RelatedPartyTransactionsDisclosureTextBlock>

<us-gaap:ProfessionalAndContractServicesExpense contextRef="From2021-01-012021-12-31_custom_SolunaMember_custom_OperatingAndManagementAgreement3Member" decimals="-3" unitRef="USD"> 380000 </us-gaap:ProfessionalAndContractServicesExpense>

<mkty:PromissoryNoteAvailableToConvert contextRef="AsOf2021-12-31_custom_MeOHPowerMember41386812" decimals="-3" unitRef="USD"> 329000 </mkty:PromissoryNoteAvailableToConvert>

<mkty:PromissoryNoteAvailableToConvert contextRef="AsOf2020-12-31_custom_MeOHPowerMember41386828" decimals="-3" unitRef="USD"> 321000 </mkty:PromissoryNoteAvailableToConvert>

<us-gaap:ProfessionalFees contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 19000 </us-gaap:ProfessionalFees>

<us-gaap:ProfessionalFees contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 95000 </us-gaap:ProfessionalFees>

<us-gaap:ProfessionalAndContractServicesExpense contextRef="From2021-01-012021-12-31_custom_SolunaMember41386843" decimals="-3" unitRef="USD"> 65000000 </us-gaap:ProfessionalAndContractServicesExpense>

<us-gaap:ProfessionalAndContractServicesExpense contextRef="From2020-01-012020-12-31_custom_SolunaMember" decimals="-3" unitRef="USD"> 350000000 </us-gaap:ProfessionalAndContractServicesExpense>

<us-gaap:PaymentsToAcquireInvestments contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 237000 </us-gaap:PaymentsToAcquireInvestments>

<mkty:AcquireAdditionalAssets contextRef="From2021-01-012021-12-31_custom_SolunaMember41386843" decimals="-3" unitRef="USD"> 112000 </mkty:AcquireAdditionalAssets>

<us-gaap:ProfessionalAndContractServicesExpense contextRef="From2020-01-012020-12-31_custom_SolunaMember_custom_OperatingAndManagementAgreement2Member" decimals="-3" unitRef="USD"> 150000 </us-gaap:ProfessionalAndContractServicesExpense>

<us-gaap:ProfessionalAndContractServicesExpense contextRef="From2021-01-012021-12-31_custom_SolunaMember_custom_OperatingAndManagementAgreement2Member" decimals="-3" unitRef="USD"> 221000 </us-gaap:ProfessionalAndContractServicesExpense>

<mkty:InvestmentPercentage contextRef="AsOf2021-09-30" decimals="INF" unitRef="Pure"> 0.200 </mkty:InvestmentPercentage>

<us-gaap:ProfessionalAndContractServicesExpense contextRef="From2020-01-012020-12-31_custom_SolunaMember_custom_OperatingAndManagementAgreement4Member" decimals="-3" unitRef="USD"> 38000000 </us-gaap:ProfessionalAndContractServicesExpense>

<us-gaap:ProfessionalAndContractServicesExpense contextRef="From2021-01-012021-12-31_custom_SolunaMember_custom_OperatingAndManagementAgreement5Member" decimals="-3" unitRef="USD"> 544000 </us-gaap:ProfessionalAndContractServicesExpense>

<us-gaap:ProfessionalAndContractServicesExpense contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 245000 </us-gaap:ProfessionalAndContractServicesExpense>

<us-gaap:ProfessionalAndContractServicesExpense contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 77000 </us-gaap:ProfessionalAndContractServicesExpense>

<mkty:InvestmentSharesPurchased contextRef="AsOf2020-01-13_custom_SolunaMember_custom_ClassAPreferredSharesMember" decimals="INF" unitRef="Shares"> 158730 </mkty:InvestmentSharesPurchased>

<mkty:PaymentsToAcquireInvestments1 contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 500000 </mkty:PaymentsToAcquireInvestments1>

<mkty:InvestmentSharesPurchased contextRef="AsOf2020-03-23_custom_SolunaMember_custom_ClassAPreferredSharesMember" decimals="INF" unitRef="Shares"> 79365 </mkty:InvestmentSharesPurchased>

<us-gaap:PaymentsToAcquireInvestments contextRef="From2020-03-222020-03-23_custom_SolunaMember_custom_ClassAPreferredSharesMember" decimals="-3" unitRef="USD"> 250000 </us-gaap:PaymentsToAcquireInvestments>

<mkty:DescriptionOfAgreement contextRef="From2020-01-122020-01-13_custom_SolunaMember"> Technologies Investment I, LLC, a Delaware limited liability company that owns, on a fully diluted basis, 57.9% </mkty:DescriptionOfAgreement>

<us-gaap:ProfessionalAndContractServicesExpense contextRef="From2021-10-282021-10-29" decimals="-3" unitRef="USD"> 725000000 </us-gaap:ProfessionalAndContractServicesExpense>

<mkty:DescriptionOfDirectorOwns contextRef="From2021-01-012021-12-31_srt_ChiefExecutiveOfficerMember_custom_MichaelToporekMember"> (i) 90% of the equity of Soluna Technologies Investment I, LLC, which owns 57.9% of HEL and (ii) 100% of the equity of MJT Park Investors, Inc., which owns 3.1% of HEL, in each case on a fully-diluted basis. Mr. Toporek does not own directly, or indirectly, any equity interest in Tera Joule, LLC, which owns 9.2% of HEL; however, as a result of his 100% ownership of Brookstone IAC, Inc., which is the manager of Tera Joule, LLC, he has dispositive power over the equity interests that Tera Joule owns in HEL. </mkty:DescriptionOfDirectorOwns>

<mkty:DescriptionOfDirectorOwns contextRef="From2021-01-012021-12-31_srt_ChiefExecutiveOfficerMember_custom_MatthewELipmanMember"> which owns 9.2% of HEL; however, as a result of his position as a director and officer of Brookstone IAC, Inc., which is the manager of Tera Joule, LLC, he has dispositive power over the equity interests that Tera Joule owns in HEL. As a result, the approximate dollar value of the amount of Mr. Toporek’s and Mr. Lipman’s interest in the Company’s transactions with HEL through December 31, 2021, were $19.9 million and $0, respectively. </mkty:DescriptionOfDirectorOwns>

<mkty:DescriptionOfDirectorOwns contextRef="From2021-01-012021-12-31_srt_ChiefExecutiveOfficerMember_custom_MrBelizaireMember"> owner of 1,317,567 shares of common stock of HEL and 102,380 Class Seed Preferred shares, which are convertible into 86,763 shares of common stock of HEL. These interests give Mr. Belizaire an ownership of 10.54% in HEL. Mr. Belizaire also owns an interest in HEL indirectly through his 5.0139% interest of Tera Joule, LLC’s 965,945 Class Seed Preferred shares, which are convertible into 818,596 shares of common stock of HEL. Mr. Bottomley is the beneficial owner of 96,189, or approximately 0.72%, of the outstanding shares of common stock of HEL. </mkty:DescriptionOfDirectorOwns>

<us-gaap:PaymentsToAcquireInvestments contextRef="From2021-01-012021-12-31_custom_HELMember" decimals="-3" unitRef="USD"> 750000 </us-gaap:PaymentsToAcquireInvestments>

<mkty:InvestmentPercentage contextRef="AsOf2021-12-31_custom_HELMember" decimals="INF" unitRef="Pure"> 0.0179 </mkty:InvestmentPercentage>

<us-gaap:DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock contextRef="From2021-01-01to2021-12-31">

<table cellpadding="0" cellspacing="0" style="font: bold 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"> <td style="width: 0"/><td style="width: 0.25in">16.</td><td>Discontinued Operations-Held for Sale</td></tr></table> As described in Note 1, the Company entered into the nonbinding LOI with the Buyer regarding the potential Sale of MTI Instruments business segment. As of December 31, 2021, our Instrumentation business segment met the held for sale criteria and is reflected as discontinued operations in our financial statements for all periods presented. Our consolidated balance sheets and consolidated statements of operations report discontinued operations separate from continuing operations. Our consolidated statements of equity and statements of cash flows combine continuing and discontinuing operations. As discussed in Footnote 9, MTI Instruments potential sale will need approval of the holders of the Notes prior to the sale of MTII. <p id="xdx_892_eus-gaap--ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_zIWjTdc6dzvd" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Set forth below are the results of the discontinued operations: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_495_20210101__20211231_zvRAyqZe6mr6" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_49D_20200101__20201231_zIKFhbbUEqY3" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020(*)</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6"> </td><td> </td></tr> <tr id="xdx_40C_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_zSEeB9mCHOG2" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 74%; text-align: left">Product revenue</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">7,147</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">9,004</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_pn3n3_zNBk0Gy3hA54" style="vertical-align: bottom; background-color: White"> <td>Cost of sales</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,358</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,669</td><td style="text-align: left"> </td></tr> <tr id="xdx_408_ecustom--DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment_pn3n3_zDLuvLG01ewf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Research and development</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,525</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,491</td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense_pn3n3_zZ6CHxSaIZj2" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Selling, general, and administrative</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,198</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,752</td><td style="text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--DisposalGroupIncludingDiscontinuedOperationOtherIncome_pn3n3_zWisJkvS6OPa" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Other income, net</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">21</td><td style="text-align: left"/><td> </td> <td style="text-align: left"> </td><td style="text-align: right">4</td><td style="text-align: left"/></tr> <tr id="xdx_400_ecustom--DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseBenefit_pn3n3_ztzBneR9UI59" style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1pt">Income tax benefit</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right"> 40 </td><td style="padding-bottom: 1pt; text-align: left"/><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">60</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--DisposalGroupIncludingDiscontinuedOperationInterestIncome_pn3n3_zpmFJV2Vrzr9" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Net income from discontinued operations</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,127</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,156</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify"> <td id="xdx_F0B_zYknqtE5nZXd" style="width: 15pt; text-align: right">(*)</td><td style="width: 5pt"/><td id="xdx_F11_zjWruFjpqzKi" style="text-align: justify">Reclassified to conform with the current period presentation</td> </tr></table> The following table summarizes information about assets and liabilities from discontinued operations held for sale as of December 31, 2021 and 2020: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td> </td> <td colspan="2" id="xdx_491_20211231_zxNs9bTdDfad" style="text-align: center"> </td><td> </td><td> </td> <td colspan="2" id="xdx_490_20201231_zNOx16Ld96P4" style="text-align: center"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">December 31,</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">December 31,</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr id="xdx_40C_eus-gaap--DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_iB_zW0P9lh1E7xk" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: center">Assets held for sale from discontinued operations:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_iI_pn3n3_zHCXv2rnE4cf" style="vertical-align: bottom; background-color: White"> <td style="width: 74%; text-align: left; padding-left: 0.125in">Accounts receivable</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">1,189</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">916</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--DisposalGroupIncludingDiscontinuedOperationInventoryCurrent_iI_pn3n3_zsyGFqBk8ky" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 0.125in">Inventories</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">964</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">828</td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent_iI_pn3n3_znkJilqa1s6f" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-left: 0.125in">Prepaid expenses and other current assets</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">54</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">45</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent_iI_pn3n3_zlsNeB6D3MUf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Property, plant and equipment, net</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">92</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">125</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssets_iI_pn3n3_zBunmSNpje7l" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Deferred tax assets, net</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">101</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">60</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_ecustom--DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightofuseAssets_iI_pn3n3_zdCCQFPaSoyl" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Operating lease right-of-use assets</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">628</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">776</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_408_ecustom--AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent1_iI_pn3n3_z68pwiK5sSu3" style="vertical-align: bottom; background-color: White"> <td style="font-weight: bold; text-align: left; padding-bottom: 2.5pt; padding-left: 0.25in">Total Assets held for sale from discontinued operations</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,028</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,750</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_iB_zXzWLa2NsSR8" style="vertical-align: bottom; background-color: White"> <td style="font-weight: bold; text-align: center">Liabilities held for sale from discontinued operations:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_iI_pn3n3_zupzKDYbacKk" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in">Accounts payable</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">136</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">108</td><td style="text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent_iI_pn3n3_zQMCCUpzQAie" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-left: 0.125in">Accrued liabilities</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">479</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">356</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_ecustom--DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitycurrent_iI_pn3n3_zB3Ekp3SVj22" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in">Operating lease liability-current</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">628</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">182</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_ecustom--DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitynoncurrent_iI_pn3n3_zHFKfKFcRaSe" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in">Operating lease liability-noncurrent</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">-</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">594</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_406_ecustom--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent1_iI_pn3n3_zwrA8zE83ebe" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left; padding-bottom: 2.5pt; padding-left: 0.25in">Total Liabilities held for sale from discontinued operations</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,243</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,240</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> <p id="xdx_896_eus-gaap--ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock_z1rzsR8ZLsNc" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">MTI Instruments sells its products on a worldwide basis with its principal markets listed in the table below where information on product revenue is summarized by geographic area for the Company as a whole for each of the years ended December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6"> </td><td> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Product revenue:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 74%; text-align: left">United States</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20210101__20211231__srt--StatementGeographicalAxis__country--US_zBYQmXAGOZl3" style="width: 10%; text-align: right" title="Product revenue">4,582</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20200101__20201231__srt--StatementGeographicalAxis__country--US_z0yBr43jtJ37" style="width: 10%; text-align: right">6,670</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Association of South East Asian Nations (ASEAN)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20210101__20211231__srt--StatementGeographicalAxis__custom--ASEANMember_zKu61ffAX6u2" style="text-align: right">1,864</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20200101__20201231__srt--StatementGeographicalAxis__custom--ASEANMember_zz0XbwH3sWZb" style="text-align: right">1,510</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Europe, the Middle East and Africa (EMEA)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20210101__20211231__srt--StatementGeographicalAxis__us-gaap--EMEAMember_ztYVPUcTDYz7" style="text-align: right">576</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20200101__20201231__srt--StatementGeographicalAxis__us-gaap--EMEAMember_zlIAxltAgPY2" style="text-align: right">713</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Americas (Canada, Mexico, South America)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98C_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20210101__20211231__srt--StatementGeographicalAxis__country--CA_zgnHnwdGrWqd" style="text-align: right">125</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20200101__20201231__srt--StatementGeographicalAxis__country--CA_zFSNZuARf2e2" style="text-align: right">111</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right"> </td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right"> </td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total product revenue</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98C_ecustom--DisposalGroupIncludingDiscontinuedOperationRevenue1_pn3n3_c20210101__20211231_zBAKQHH8FWY9" style="border-bottom: Black 2.5pt double; text-align: right" title="Total product revenue">7,147</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98B_ecustom--DisposalGroupIncludingDiscontinuedOperationRevenue1_pn3n3_c20200101__20201231_zgZW8f4TcIxg" style="border-bottom: Black 2.5pt double; text-align: right">9,004</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Product revenues are attributed to regions based on the location of customers. In 2021 and 2020, approximately 35.9% and 25.9%, respectively, of our product revenues was from customers outside of the United States. At MTI Instruments, the largest commercial customer in 2021 was a Singapore manufacturer and distributer of industrial and technology product and services of support solutions to the aerospace and energy markets, which accounted for 13.0% of total product revenue. At MTI Instruments, the largest commercial customer in 2020 was a U.S. supplier that builds and executes custom solutions for industry and government markets, which accounted for 9.1% of total product revenue. The U.S. Air Force continues to be the largest government customer, accounting for 18.5% and 42.9% of total product revenue in 2021 and 2020, respectively.

</us-gaap:DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock>

<us-gaap:ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_892_eus-gaap--ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_zIWjTdc6dzvd" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Set forth below are the results of the discontinued operations: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_495_20210101__20211231_zvRAyqZe6mr6" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" id="xdx_49D_20200101__20201231_zIKFhbbUEqY3" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020(*)</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6"> </td><td> </td></tr> <tr id="xdx_40C_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_zSEeB9mCHOG2" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 74%; text-align: left">Product revenue</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">7,147</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">9,004</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_pn3n3_zNBk0Gy3hA54" style="vertical-align: bottom; background-color: White"> <td>Cost of sales</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,358</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,669</td><td style="text-align: left"> </td></tr> <tr id="xdx_408_ecustom--DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment_pn3n3_zDLuvLG01ewf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Research and development</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,525</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,491</td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense_pn3n3_zZ6CHxSaIZj2" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Selling, general, and administrative</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,198</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,752</td><td style="text-align: left"> </td></tr> <tr id="xdx_402_eus-gaap--DisposalGroupIncludingDiscontinuedOperationOtherIncome_pn3n3_zWisJkvS6OPa" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Other income, net</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">21</td><td style="text-align: left"/><td> </td> <td style="text-align: left"> </td><td style="text-align: right">4</td><td style="text-align: left"/></tr> <tr id="xdx_400_ecustom--DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseBenefit_pn3n3_ztzBneR9UI59" style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1pt">Income tax benefit</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right"> 40 </td><td style="padding-bottom: 1pt; text-align: left"/><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">60</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--DisposalGroupIncludingDiscontinuedOperationInterestIncome_pn3n3_zpmFJV2Vrzr9" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Net income from discontinued operations</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,127</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,156</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify"> <td id="xdx_F0B_zYknqtE5nZXd" style="width: 15pt; text-align: right">(*)</td><td style="width: 5pt"/><td id="xdx_F11_zjWruFjpqzKi" style="text-align: justify">Reclassified to conform with the current period presentation</td> </tr></table>

</us-gaap:ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 7147000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue contextRef="From2020-01-012020-12-31" decimals="-3" id="Fact001632" unitRef="USD"> 9004000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 2358000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold contextRef="From2020-01-012020-12-31" decimals="-3" id="Fact001635" unitRef="USD"> 2669000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold>

<mkty:DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 1525000 </mkty:DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment>

<mkty:DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment contextRef="From2020-01-012020-12-31" decimals="-3" id="Fact001638" unitRef="USD"> 1491000 </mkty:DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 2198000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense contextRef="From2020-01-012020-12-31" decimals="-3" id="Fact001641" unitRef="USD"> 1752000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherIncome contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 21000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherIncome>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherIncome contextRef="From2020-01-012020-12-31" decimals="-3" id="Fact001644" unitRef="USD"> 4000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherIncome>

<mkty:DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseBenefit contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 40000 </mkty:DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseBenefit>

<mkty:DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseBenefit contextRef="From2020-01-012020-12-31" decimals="-3" id="Fact001647" unitRef="USD"> 60000 </mkty:DisposalGroupIncludingDiscontinuedOperationIncomeTaxExpenseBenefit>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationInterestIncome contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 1127000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationInterestIncome>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationInterestIncome contextRef="From2020-01-012020-12-31" decimals="-3" id="Fact001650" unitRef="USD"> 3156000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationInterestIncome>

<mkty:ScheduleOfDisposalGroupsIncludingDiscontinuedssetsandLiabilitiesTableTextBlock contextRef="From2021-01-01to2021-12-31">

The following table summarizes information about assets and liabilities from discontinued operations held for sale as of December 31, 2021 and 2020: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td> </td> <td colspan="2" id="xdx_491_20211231_zxNs9bTdDfad" style="text-align: center"> </td><td> </td><td> </td> <td colspan="2" id="xdx_490_20201231_zNOx16Ld96P4" style="text-align: center"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">December 31,</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">December 31,</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr id="xdx_40C_eus-gaap--DisposalGroupIncludingDiscontinuedOperationBalanceSheetDisclosuresAbstract_iB_zW0P9lh1E7xk" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: center">Assets held for sale from discontinued operations:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_iI_pn3n3_zHCXv2rnE4cf" style="vertical-align: bottom; background-color: White"> <td style="width: 74%; text-align: left; padding-left: 0.125in">Accounts receivable</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">1,189</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 10%; text-align: right">916</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--DisposalGroupIncludingDiscontinuedOperationInventoryCurrent_iI_pn3n3_zsyGFqBk8ky" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 0.125in">Inventories</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">964</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">828</td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent_iI_pn3n3_znkJilqa1s6f" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-left: 0.125in">Prepaid expenses and other current assets</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">54</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">45</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent_iI_pn3n3_zlsNeB6D3MUf" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Property, plant and equipment, net</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">92</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">125</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssets_iI_pn3n3_zBunmSNpje7l" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Deferred tax assets, net</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">101</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">60</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_ecustom--DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightofuseAssets_iI_pn3n3_zdCCQFPaSoyl" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Operating lease right-of-use assets</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">628</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">776</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_408_ecustom--AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent1_iI_pn3n3_z68pwiK5sSu3" style="vertical-align: bottom; background-color: White"> <td style="font-weight: bold; text-align: left; padding-bottom: 2.5pt; padding-left: 0.25in">Total Assets held for sale from discontinued operations</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,028</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,750</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_iB_zXzWLa2NsSR8" style="vertical-align: bottom; background-color: White"> <td style="font-weight: bold; text-align: center">Liabilities held for sale from discontinued operations:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_407_eus-gaap--DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_iI_pn3n3_zupzKDYbacKk" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in">Accounts payable</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">136</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">108</td><td style="text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent_iI_pn3n3_zQMCCUpzQAie" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-left: 0.125in">Accrued liabilities</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">479</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">356</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_ecustom--DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitycurrent_iI_pn3n3_zB3Ekp3SVj22" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-left: 0.125in">Operating lease liability-current</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">628</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">182</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_ecustom--DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitynoncurrent_iI_pn3n3_zHFKfKFcRaSe" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt; padding-left: 0.125in">Operating lease liability-noncurrent</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">-</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right">594</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr id="xdx_406_ecustom--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent1_iI_pn3n3_zwrA8zE83ebe" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left; padding-bottom: 2.5pt; padding-left: 0.25in">Total Liabilities held for sale from discontinued operations</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,243</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,240</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</mkty:ScheduleOfDisposalGroupsIncludingDiscontinuedssetsandLiabilitiesTableTextBlock>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 1189000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 916000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationInventoryCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 964000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationInventoryCurrent>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationInventoryCurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 828000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationInventoryCurrent>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 54000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 45000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 92000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 125000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssets contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 101000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssets>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssets contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 60000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationDeferredTaxAssets>

<mkty:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightofuseAssets contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 628000 </mkty:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightofuseAssets>

<mkty:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightofuseAssets contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 776000 </mkty:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseRightofuseAssets>

<mkty:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent1 contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 3028000 </mkty:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent1>

<mkty:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent1 contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 2750000 </mkty:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent1>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 136000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 108000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 479000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 356000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent>

<mkty:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitycurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 628000 </mkty:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitycurrent>

<mkty:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitycurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 182000 </mkty:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitycurrent>

<mkty:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitynoncurrent contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 594000 </mkty:DisposalGroupIncludingDiscontinuedOperationOperatingLeaseLiabilitynoncurrent>

<mkty:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent1 contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD"> 1243000 </mkty:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent1>

<mkty:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent1 contextRef="AsOf2020-12-31" decimals="-3" unitRef="USD"> 1240000 </mkty:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent1>

<us-gaap:ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock contextRef="From2021-01-01to2021-12-31">

<p id="xdx_896_eus-gaap--ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock_z1rzsR8ZLsNc" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">MTI Instruments sells its products on a worldwide basis with its principal markets listed in the table below where information on product revenue is summarized by geographic area for the Company as a whole for each of the years ended December 31: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6"> </td><td> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Product revenue:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 74%; text-align: left">United States</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20210101__20211231__srt--StatementGeographicalAxis__country--US_zBYQmXAGOZl3" style="width: 10%; text-align: right" title="Product revenue">4,582</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20200101__20201231__srt--StatementGeographicalAxis__country--US_z0yBr43jtJ37" style="width: 10%; text-align: right">6,670</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Association of South East Asian Nations (ASEAN)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20210101__20211231__srt--StatementGeographicalAxis__custom--ASEANMember_zKu61ffAX6u2" style="text-align: right">1,864</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20200101__20201231__srt--StatementGeographicalAxis__custom--ASEANMember_zz0XbwH3sWZb" style="text-align: right">1,510</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Europe, the Middle East and Africa (EMEA)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20210101__20211231__srt--StatementGeographicalAxis__us-gaap--EMEAMember_ztYVPUcTDYz7" style="text-align: right">576</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20200101__20201231__srt--StatementGeographicalAxis__us-gaap--EMEAMember_zlIAxltAgPY2" style="text-align: right">713</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Americas (Canada, Mexico, South America)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98C_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20210101__20211231__srt--StatementGeographicalAxis__country--CA_zgnHnwdGrWqd" style="text-align: right">125</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--DisposalGroupIncludingDiscontinuedOperationRevenue_pn3n3_c20200101__20201231__srt--StatementGeographicalAxis__country--CA_zFSNZuARf2e2" style="text-align: right">111</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1pt"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right"> </td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td style="border-bottom: Black 1pt solid; text-align: right"> </td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total product revenue</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98C_ecustom--DisposalGroupIncludingDiscontinuedOperationRevenue1_pn3n3_c20210101__20211231_zBAKQHH8FWY9" style="border-bottom: Black 2.5pt double; text-align: right" title="Total product revenue">7,147</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98B_ecustom--DisposalGroupIncludingDiscontinuedOperationRevenue1_pn3n3_c20200101__20201231_zgZW8f4TcIxg" style="border-bottom: Black 2.5pt double; text-align: right">9,004</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

</us-gaap:ScheduleOfRevenueFromExternalCustomersAttributedToForeignCountriesByGeographicAreaTextBlock>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue contextRef="From2021-01-012021-12-31_country_US" decimals="-3" unitRef="USD"> 4582000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue contextRef="From2020-01-012020-12-31_country_US" decimals="-3" unitRef="USD"> 6670000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue contextRef="From2021-01-012021-12-31_custom_ASEANMember" decimals="-3" unitRef="USD"> 1864000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue contextRef="From2020-01-012020-12-31_custom_ASEANMember" decimals="-3" unitRef="USD"> 1510000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue contextRef="From2021-01-012021-12-31_us-gaap_EMEAMember" decimals="-3" unitRef="USD"> 576000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue contextRef="From2020-01-012020-12-31_us-gaap_EMEAMember" decimals="-3" unitRef="USD"> 713000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue contextRef="From2021-01-012021-12-31_country_CA" decimals="-3" unitRef="USD"> 125000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue>

<us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue contextRef="From2020-01-012020-12-31_country_CA" decimals="-3" unitRef="USD"> 111000 </us-gaap:DisposalGroupIncludingDiscontinuedOperationRevenue>

<mkty:DisposalGroupIncludingDiscontinuedOperationRevenue1 contextRef="From2021-01-01to2021-12-31" decimals="-3" unitRef="USD"> 7147000 </mkty:DisposalGroupIncludingDiscontinuedOperationRevenue1>

<mkty:DisposalGroupIncludingDiscontinuedOperationRevenue1 contextRef="From2020-01-012020-12-31" decimals="-3" unitRef="USD"> 9004000 </mkty:DisposalGroupIncludingDiscontinuedOperationRevenue1>

<mkty:PercentageOfProductRevenues contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 0.359 </mkty:PercentageOfProductRevenues>

<mkty:PercentageOfProductRevenues contextRef="From2020-01-012020-12-31" decimals="INF" unitRef="Pure"> 0.259 </mkty:PercentageOfProductRevenues>

<mkty:PercentageOfProductRevenues contextRef="From2021-01-012021-12-31_country_US_custom_MTIInstrumentsMember" decimals="INF" unitRef="Pure"> 0.091 </mkty:PercentageOfProductRevenues>

<mkty:PercentageOfProductRevenues contextRef="From2021-01-012021-12-31_custom_MTIInstrumentsMember" decimals="INF" unitRef="Pure"> 0.185 </mkty:PercentageOfProductRevenues>

<mkty:PercentageOfProductRevenues contextRef="From2020-01-012020-12-31_custom_MTIInstrumentsMember" decimals="INF" unitRef="Pure"> 0.429 </mkty:PercentageOfProductRevenues>

<us-gaap:SegmentReportingDisclosureTextBlock contextRef="From2021-01-01to2021-12-31">

17. Segment Information The Company applies ASC 280, Segment Reporting, in determining its reportable segments. The Company has two reportable segments: Cryptocurrency Mining and Data Center Hosting. The Company notes that previously there was an additional segment: Test and Measurement Instrumentation, however as discussed in Note 1, the Company intends to sell that reportable segment within a year, and therefore classify as discontinued operations. The guidance requires that segment disclosures present the measure(s) used by the Chief Operating Decision Maker (“CODM”) to decide how to allocate resources and for purposes of assessing such segments’ performance. The Company’s CODM is comprised of several members of its executive management team who use revenue and cost of revenues of both reporting segments to assess the performance of the business of our reportable operating segments. No operating segments have been aggregated to form the reportable segments. The Company does not allocate all assets to the reporting segments as these are managed on an entity-wide basis. Therefore, the Company does not separately disclose the total assets of its reportable operating segments. The Cryptocurrency Mining segment generates revenue from the cryptocurrency the Company earns through its mining activities. The Data Center Hosting segment generates revenue from contracts for the provision/consumption of electricity and operation of the data center from the Company’s high performance computing facility in Calvert City, Kentucky. For the year ended December 31, 2021, approximately 34% of the Company’s cryptocurrency mining revenue was generated from the East Wenatchee, Washington operations, 41% from its Calvert City, Kentucky operations and 25% from its operations in Murray, Kentucky, and 100% of the Company’s data center hosting revenue was generated from the facility in Calvert City, Kentucky from hosting with two customers. The Company evaluates performance based on profit or loss from operations before income taxes, accounting changes, items management does not deem relevant to segment performance, and interest income and expense. Inter-segment sales and expenses are not significant. Non-cash items of depreciation and amortization are included within both costs of sales and selling, general and administrative expenses. The following table details revenue and cost of revenues for the Company’s reportable segments for the years ended December 31, 2021 and 2020, and reconciles to net income (loss) on the consolidated statements of operations : <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">December 31, 2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Reportable segment revenue:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 74%; text-align: left">Cryptocurrency mining revenue</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98F_eus-gaap--Revenues_pn3n3_c20210101__20211231__srt--ProductOrServiceAxis__custom--CryptocurrencyRevenueMember_zkpCfPzXWKL1" style="width: 10%; text-align: right" title="Revenues">10,932</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_982_eus-gaap--Revenues_pn3n3_c20200101__20201231__srt--ProductOrServiceAxis__custom--CryptocurrencyRevenueMember_zqWzBy8U2aGf" style="width: 10%; text-align: right">595</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Data hosting revenue</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_985_eus-gaap--Revenues_pn3n3_c20210101__20211231__srt--ProductOrServiceAxis__custom--DataHostingRevenueMember_zM7W0kO7fzHl" style="border-bottom: Black 1pt solid; text-align: right">3,413</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_981_eus-gaap--Revenues_pn3n3_c20200101__20201231__srt--ProductOrServiceAxis__custom--DataHostingRevenueMember_zkpi3divoZrk" style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Total segment and consolidated revenue</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_981_eus-gaap--Revenues_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zkQT2mhP8l35" style="border-bottom: Black 1pt solid; text-align: right">14,345</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98E_eus-gaap--Revenues_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zI8r5pCEDw93" style="border-bottom: Black 1pt solid; text-align: right">595</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Reportable segment cost of revenue:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Cost of revenues-cryptocurrency mining</td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--CostOfRevenue_pn3n3_c20210101__20211231__srt--ProductOrServiceAxis__custom--CryptocurrencyRevenueMember_zyYPJm1njCNa" style="text-align: right" title="Cost of revenue">5,626</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--CostOfRevenue_pn3n3_c20200101__20201231__srt--ProductOrServiceAxis__custom--CryptocurrencyRevenueMember_zQxItsXK92Qg" style="text-align: right">405</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Cost of revenues-data hosting</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98D_eus-gaap--CostOfRevenue_pn3n3_c20210101__20211231__srt--ProductOrServiceAxis__custom--DataHostingRevenueMember_zrcu09T5kmW" style="border-bottom: Black 1pt solid; text-align: right">2,444</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--CostOfRevenue_pn3n3_c20200101__20201231__srt--ProductOrServiceAxis__custom--DataHostingRevenueMember_zE7WamL7xKsd" style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-weight: bold; text-align: left; padding-bottom: 1pt">Total segment and consolidated cost of revenues</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_985_eus-gaap--CostOfRevenue_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zDF1pT9oYJUf" style="border-bottom: Black 1pt solid; text-align: right">8,070</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98A_eus-gaap--CostOfRevenue_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zMAzPskEvw34" style="border-bottom: Black 1pt solid; text-align: right">405</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Reconciling items:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Selling, general and administrative expenses</td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zch2Eq94EkR7" style="text-align: right" title="Research and development expenses">10,751</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zpYLMxsF0Bhk" style="text-align: right">1,832</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Interest expense</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--InterestExpenseOther_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zvBGfslBgsg7" style="text-align: right">(1,879</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> —</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Other income</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--OtherNonoperatingIncomeExpense_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zj74vXG5Xbf7" style="text-align: right" title="Other income (expense)">11</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--OtherNonoperatingIncomeExpense_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_z5yWys0NRDIf" style="text-align: right">100</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Income tax (expense) benefit from continuing operations</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98C_ecustom--IncomeTaxExpenseBenefitContinuingOperationsOperationsExtraordinaryItems_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zxyZCf8vHcXl" style="border-bottom: Black 1pt solid; text-align: right" title="Income tax (expense) benefit from continuing operations">(44</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98B_ecustom--IncomeTaxExpenseBenefitContinuingOperationsOperationsExtraordinaryItems_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_z0zKeyV45cR6" style="border-bottom: Black 1pt solid; text-align: right">332</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Net loss (continuing operations)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_986_eus-gaap--IncomeLossFromContinuingOperations_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zT8s8Fhy4qD4" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss (continuing operations)">(6,388</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--IncomeLossFromContinuingOperations_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zSq3BKUkTz9i" style="border-bottom: Black 1pt solid; text-align: right">(1,210</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left"> Income from discontinued operations before income tax</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsAttributableToParentBeforeIncomeTax_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zEglLtecdCpi" style="text-align: right" title="Income from discontinued operations-held for sale before income tax">1,087</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsAttributableToParentBeforeIncomeTax_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zQCSJJfcUQOa" style="text-align: right">3,096</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt"> Income tax (expense) benefit from discontinued operations</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98A_eus-gaap--IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zEgW13j4Dk18" style="border-bottom: Black 1pt solid; text-align: right" title="Income tax (expense) benefit from discontinued operations-held for sale">40</td><td style="padding-bottom: 1pt; text-align: left"/><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zKE8C7WgLMta" style="border-bottom: Black 1pt solid; text-align: right">60</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Net income from discontinued operations</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_989_ecustom--NetIncomeDiscontinuedOperationsheldForSale_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zQ2cYe8NwtQa" style="border-bottom: Black 1pt solid; text-align: right" title="Net income (discontinued operations-held for sale)">1,127</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_985_ecustom--NetIncomeDiscontinuedOperationsheldForSale_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zghfnhJLcKEf" style="border-bottom: Black 1pt solid; text-align: right">3,156</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Net loss</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_98C_eus-gaap--NetIncomeLoss_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zYmuYq9cGqod" style="border-bottom: Black 2.5pt double; text-align: right" title="Net loss">(5,261</td><td style="text-align: left; padding-bottom: 2.5pt">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_98A_eus-gaap--NetIncomeLoss_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zv2dphKgL0R4" style="border-bottom: Black 2.5pt double; text-align: right">1,946</td><td style="text-align: left; padding-bottom: 2.5pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Capital expenditures</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--PaymentsToAcquireProductiveAssets_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zPwkT8qbq2n4" style="text-align: right" title="Capital expenditures">45,792</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--PaymentsToAcquireProductiveAssets_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zKt5PrEfrZv2" style="text-align: right">805</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Depreciation and amortization</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--DepreciationAndAmortization_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zwIg8VFgtrBc" style="text-align: right" title="Depreciation and amortization">3,703</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--DepreciationAndAmortization_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_z5dasjTcuN4d" style="text-align: right">81</td><td style="text-align: left"> </td></tr> </table>

</us-gaap:SegmentReportingDisclosureTextBlock>

<us-gaap:ConcentrationRiskPercentage1 contextRef="From2021-01-012021-12-31_custom_CryptocurrencyMember" decimals="INF" unitRef="Pure"> 0.34 </us-gaap:ConcentrationRiskPercentage1>

<us-gaap:ConcentrationRiskPercentage1 contextRef="From2021-01-01to2021-12-31" decimals="INF" unitRef="Pure"> 0.41 </us-gaap:ConcentrationRiskPercentage1>

<us-gaap:ConcentrationRiskPercentage1 contextRef="From2021-01-012021-12-31_custom_CalvertCityMember" decimals="INF" unitRef="Pure"> 0.25 </us-gaap:ConcentrationRiskPercentage1>

<us-gaap:ConcentrationRiskPercentage1 contextRef="From2021-01-012021-12-31_custom_MurrayMember" decimals="INF" unitRef="Pure"> 1 </us-gaap:ConcentrationRiskPercentage1>

<us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock contextRef="From2021-01-01to2021-12-31">

The following table details revenue and cost of revenues for the Company’s reportable segments for the years ended December 31, 2021 and 2020, and reconciles to net income (loss) on the consolidated statements of operations : <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td>(Dollars in thousands)</td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">December 31, 2021</td><td style="padding-bottom: 1pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1pt"> </td> <td colspan="2" style="border-bottom: Black 1pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Reportable segment revenue:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 74%; text-align: left">Cryptocurrency mining revenue</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98F_eus-gaap--Revenues_pn3n3_c20210101__20211231__srt--ProductOrServiceAxis__custom--CryptocurrencyRevenueMember_zkpCfPzXWKL1" style="width: 10%; text-align: right" title="Revenues">10,932</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_982_eus-gaap--Revenues_pn3n3_c20200101__20201231__srt--ProductOrServiceAxis__custom--CryptocurrencyRevenueMember_zqWzBy8U2aGf" style="width: 10%; text-align: right">595</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Data hosting revenue</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_985_eus-gaap--Revenues_pn3n3_c20210101__20211231__srt--ProductOrServiceAxis__custom--DataHostingRevenueMember_zM7W0kO7fzHl" style="border-bottom: Black 1pt solid; text-align: right">3,413</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_981_eus-gaap--Revenues_pn3n3_c20200101__20201231__srt--ProductOrServiceAxis__custom--DataHostingRevenueMember_zkpi3divoZrk" style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Total segment and consolidated revenue</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_981_eus-gaap--Revenues_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zkQT2mhP8l35" style="border-bottom: Black 1pt solid; text-align: right">14,345</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98E_eus-gaap--Revenues_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zI8r5pCEDw93" style="border-bottom: Black 1pt solid; text-align: right">595</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Reportable segment cost of revenue:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Cost of revenues-cryptocurrency mining</td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--CostOfRevenue_pn3n3_c20210101__20211231__srt--ProductOrServiceAxis__custom--CryptocurrencyRevenueMember_zyYPJm1njCNa" style="text-align: right" title="Cost of revenue">5,626</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--CostOfRevenue_pn3n3_c20200101__20201231__srt--ProductOrServiceAxis__custom--CryptocurrencyRevenueMember_zQxItsXK92Qg" style="text-align: right">405</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Cost of revenues-data hosting</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98D_eus-gaap--CostOfRevenue_pn3n3_c20210101__20211231__srt--ProductOrServiceAxis__custom--DataHostingRevenueMember_zrcu09T5kmW" style="border-bottom: Black 1pt solid; text-align: right">2,444</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--CostOfRevenue_pn3n3_c20200101__20201231__srt--ProductOrServiceAxis__custom--DataHostingRevenueMember_zE7WamL7xKsd" style="border-bottom: Black 1pt solid; text-align: right">—</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-weight: bold; text-align: left; padding-bottom: 1pt">Total segment and consolidated cost of revenues</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_985_eus-gaap--CostOfRevenue_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zDF1pT9oYJUf" style="border-bottom: Black 1pt solid; text-align: right">8,070</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98A_eus-gaap--CostOfRevenue_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zMAzPskEvw34" style="border-bottom: Black 1pt solid; text-align: right">405</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Reconciling items:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Selling, general and administrative expenses</td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zch2Eq94EkR7" style="text-align: right" title="Research and development expenses">10,751</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zpYLMxsF0Bhk" style="text-align: right">1,832</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Interest expense</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--InterestExpenseOther_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zvBGfslBgsg7" style="text-align: right">(1,879</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> —</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Other income</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--OtherNonoperatingIncomeExpense_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zj74vXG5Xbf7" style="text-align: right" title="Other income (expense)">11</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--OtherNonoperatingIncomeExpense_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_z5yWys0NRDIf" style="text-align: right">100</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Income tax (expense) benefit from continuing operations</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98C_ecustom--IncomeTaxExpenseBenefitContinuingOperationsOperationsExtraordinaryItems_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zxyZCf8vHcXl" style="border-bottom: Black 1pt solid; text-align: right" title="Income tax (expense) benefit from continuing operations">(44</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98B_ecustom--IncomeTaxExpenseBenefitContinuingOperationsOperationsExtraordinaryItems_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_z0zKeyV45cR6" style="border-bottom: Black 1pt solid; text-align: right">332</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt">Net loss (continuing operations)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_986_eus-gaap--IncomeLossFromContinuingOperations_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zT8s8Fhy4qD4" style="border-bottom: Black 1pt solid; text-align: right" title="Net loss (continuing operations)">(6,388</td><td style="padding-bottom: 1pt; text-align: left">)</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--IncomeLossFromContinuingOperations_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zSq3BKUkTz9i" style="border-bottom: Black 1pt solid; text-align: right">(1,210</td><td style="padding-bottom: 1pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left"> Income from discontinued operations before income tax</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsAttributableToParentBeforeIncomeTax_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zEglLtecdCpi" style="text-align: right" title="Income from discontinued operations-held for sale before income tax">1,087</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsAttributableToParentBeforeIncomeTax_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zQCSJJfcUQOa" style="text-align: right">3,096</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1pt"> Income tax (expense) benefit from discontinued operations</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_98A_eus-gaap--IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zEgW13j4Dk18" style="border-bottom: Black 1pt solid; text-align: right" title="Income tax (expense) benefit from discontinued operations-held for sale">40</td><td style="padding-bottom: 1pt; text-align: left"/><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zKE8C7WgLMta" style="border-bottom: Black 1pt solid; text-align: right">60</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1pt">Net income from discontinued operations</td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_989_ecustom--NetIncomeDiscontinuedOperationsheldForSale_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zQ2cYe8NwtQa" style="border-bottom: Black 1pt solid; text-align: right" title="Net income (discontinued operations-held for sale)">1,127</td><td style="padding-bottom: 1pt; text-align: left"> </td><td style="padding-bottom: 1pt"> </td> <td style="border-bottom: Black 1pt solid; text-align: left"> </td><td id="xdx_985_ecustom--NetIncomeDiscontinuedOperationsheldForSale_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zghfnhJLcKEf" style="border-bottom: Black 1pt solid; text-align: right">3,156</td><td style="padding-bottom: 1pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Net loss</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_98C_eus-gaap--NetIncomeLoss_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zYmuYq9cGqod" style="border-bottom: Black 2.5pt double; text-align: right" title="Net loss">(5,261</td><td style="text-align: left; padding-bottom: 2.5pt">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_98A_eus-gaap--NetIncomeLoss_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zv2dphKgL0R4" style="border-bottom: Black 2.5pt double; text-align: right">1,946</td><td style="text-align: left; padding-bottom: 2.5pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Capital expenditures</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--PaymentsToAcquireProductiveAssets_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zPwkT8qbq2n4" style="text-align: right" title="Capital expenditures">45,792</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--PaymentsToAcquireProductiveAssets_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zKt5PrEfrZv2" style="text-align: right">805</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Depreciation and amortization</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--DepreciationAndAmortization_pn3n3_c20210101__20211231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_zwIg8VFgtrBc" style="text-align: right" title="Depreciation and amortization">3,703</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--DepreciationAndAmortization_pn3n3_c20200101__20201231__us-gaap--SubsegmentsConsolidationItemsAxis__us-gaap--ReportableSubsegmentsMember_z5dasjTcuN4d" style="text-align: right">81</td><td style="text-align: left"> </td></tr> </table>

</us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock>

<us-gaap:Revenues contextRef="From2021-01-012021-12-31_custom_CryptocurrencyRevenueMember" decimals="-3" unitRef="USD"> 10932000 </us-gaap:Revenues>

<us-gaap:Revenues contextRef="From2020-01-012020-12-31_custom_CryptocurrencyRevenueMember" decimals="-3" unitRef="USD"> 595000 </us-gaap:Revenues>

<us-gaap:Revenues contextRef="From2021-01-012021-12-31_custom_DataHostingRevenueMember" decimals="-3" unitRef="USD"> 3413000 </us-gaap:Revenues>

<us-gaap:Revenues contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 14345000 </us-gaap:Revenues>

<us-gaap:Revenues contextRef="From2020-01-012020-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 595000 </us-gaap:Revenues>

<us-gaap:CostOfRevenue contextRef="From2021-01-012021-12-31_custom_CryptocurrencyRevenueMember" decimals="-3" unitRef="USD"> 5626000 </us-gaap:CostOfRevenue>

<us-gaap:CostOfRevenue contextRef="From2020-01-012020-12-31_custom_CryptocurrencyRevenueMember" decimals="-3" unitRef="USD"> 405000 </us-gaap:CostOfRevenue>

<us-gaap:CostOfRevenue contextRef="From2021-01-012021-12-31_custom_DataHostingRevenueMember" decimals="-3" unitRef="USD"> 2444000 </us-gaap:CostOfRevenue>

<us-gaap:CostOfRevenue contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 8070000 </us-gaap:CostOfRevenue>

<us-gaap:CostOfRevenue contextRef="From2020-01-012020-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 405000 </us-gaap:CostOfRevenue>

<us-gaap:ResearchAndDevelopmentExpense contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 10751000 </us-gaap:ResearchAndDevelopmentExpense>

<us-gaap:ResearchAndDevelopmentExpense contextRef="From2020-01-012020-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 1832000 </us-gaap:ResearchAndDevelopmentExpense>

<us-gaap:InterestExpenseOther contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> -1879000 </us-gaap:InterestExpenseOther>

<us-gaap:OtherNonoperatingIncomeExpense contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 11000 </us-gaap:OtherNonoperatingIncomeExpense>

<us-gaap:OtherNonoperatingIncomeExpense contextRef="From2020-01-012020-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 100000 </us-gaap:OtherNonoperatingIncomeExpense>

<mkty:IncomeTaxExpenseBenefitContinuingOperationsOperationsExtraordinaryItems contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> -44000 </mkty:IncomeTaxExpenseBenefitContinuingOperationsOperationsExtraordinaryItems>

<mkty:IncomeTaxExpenseBenefitContinuingOperationsOperationsExtraordinaryItems contextRef="From2020-01-012020-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 332000 </mkty:IncomeTaxExpenseBenefitContinuingOperationsOperationsExtraordinaryItems>

<us-gaap:IncomeLossFromContinuingOperations contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> -6388000 </us-gaap:IncomeLossFromContinuingOperations>

<us-gaap:IncomeLossFromContinuingOperations contextRef="From2020-01-012020-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> -1210000 </us-gaap:IncomeLossFromContinuingOperations>

<us-gaap:IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsAttributableToParentBeforeIncomeTax contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 1087000 </us-gaap:IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsAttributableToParentBeforeIncomeTax>

<us-gaap:IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsAttributableToParentBeforeIncomeTax contextRef="From2020-01-012020-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 3096000 </us-gaap:IncomeLossFromIndividuallySignificantComponentDisposedOfOrHeldForSaleExcludingDiscontinuedOperationsAttributableToParentBeforeIncomeTax>

<us-gaap:IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 40000 </us-gaap:IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems>

<us-gaap:IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems contextRef="From2020-01-012020-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 60000 </us-gaap:IncomeTaxExpenseBenefitContinuingOperationsDiscontinuedOperationsExtraordinaryItems>

<mkty:NetIncomeDiscontinuedOperationsheldForSale contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 1127000 </mkty:NetIncomeDiscontinuedOperationsheldForSale>

<mkty:NetIncomeDiscontinuedOperationsheldForSale contextRef="From2020-01-012020-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 3156000 </mkty:NetIncomeDiscontinuedOperationsheldForSale>

<us-gaap:NetIncomeLoss contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> -5261000 </us-gaap:NetIncomeLoss>

<us-gaap:NetIncomeLoss contextRef="From2020-01-012020-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 1946000 </us-gaap:NetIncomeLoss>

<us-gaap:PaymentsToAcquireProductiveAssets contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 45792000 </us-gaap:PaymentsToAcquireProductiveAssets>

<us-gaap:PaymentsToAcquireProductiveAssets contextRef="From2020-01-012020-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 805000 </us-gaap:PaymentsToAcquireProductiveAssets>

<us-gaap:DepreciationAndAmortization contextRef="From2021-01-012021-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 3703000 </us-gaap:DepreciationAndAmortization>

<us-gaap:DepreciationAndAmortization contextRef="From2020-01-012020-12-31_us-gaap_ReportableSubsegmentsMember" decimals="-3" unitRef="USD"> 81000 </us-gaap:DepreciationAndAmortization>

<us-gaap:SubsequentEventsTextBlock contextRef="From2021-01-01to2021-12-31">

18. Subsequent Events In accordance with U.S. GAAP, the Company has evaluated subsequent events for disclosure between the consolidated balance sheet date of December 31, 2021 and March 31, 2022, the date the financial statements were available to be issued. NYDIG Financing On December 30, 2021, Soluna MC Borrowing 2021-1 LLC (“Borrower”), an indirect wholly owned subsidiary of the Company entered into a Master Equipment Finance Agreement (the “Master Agreement”) with NYDIG ABL LLC (“NYDIG”) as lender, servicer and collateral agent. The Master Agreement outlined the framework for a financing up to approximately $14.4 million in aggregate equipment financing. Subsequently, the parties negotiated the specific terms of each equipment financing transaction as well as the terms upon which the investors in our October 2021 Senior Secured Convertible Notes (the “Convertible Investors”) would consent to the transactions contemplated by the Master Agreement. On January 14, 2022, Borrower effected an initial drawdown under the Master Agreement in the aggregate principal amount of approximately $<span id="xdx_900_ecustom--AggregateFinancingValue_dm_c20220113__20220114__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--InvestorsMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zhljaBwPftt2">4.6 million that bore interest at <span id="xdx_908_eus-gaap--DebtInstrumentInterestRateEffectivePercentage_iI_pid_dp_uPure_c20220114__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--InvestorsMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zbGpkAeL1kOg" title="Debt Instrument, Interest Rate, Effective Percentage">14% and will be repaid over 24 months. On January 26, 2022, Borrower had a subsequent drawdown of $9.6 million. As part of the transactions contemplated under the Master Agreement, (i) the Company’s indirect wholly owned subsidiary, Soluna MC LLC, formerly EcoChain Block LLC (“Guarantor”), which is the owner of 100% of the equity interests of Borrower, executed a Guaranty Agreement in favor of NYDIG, as lender, dated as of December 30, 2021 (the “Guaranty Agreement”), (ii) Borrower has granted a lien on, and security interest in, all of its assets to NYDIG, as collateral agent, (iii) Guarantor entered into a sale/leaseback structure on assets purchased with the borrowed funds, (iv) Borrower will borrow from NYDIG the loans as forth in certain loan schedules (the “Specified Loans”), and (v) Borrower has executed a Digital Asset Account Control Agreement (the “ACA Wallet Agreement”) with NYDIG, as collateral agent and secured party, and NYDIG Trust Company LLC, as custodian, dated as of December 30, 2021, as well as such other agreements related to the foregoing as mutually agreed (collectively, the “NYDIG Transactions”). In connection with the NYDIG Transactions, on January 13, 2022, the Company entered into a Consent and Waiver Agreement, dated as of January 13, 2022 (the “Consent”), with the Convertible Investors, in connection with the SPA, pursuant to which the Convertible Investors agreed to waive any lien on, and security interest in, certain assets, provided various contingencies are fulfilled, and each Investor who acquired on the Closing Date Notes having a principal amount of not less than $<span id="xdx_909_ecustom--AggregatePrincipalAmount_pn3n3_c20220113__20220114__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--InvestorsMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember__us-gaap--FinancialInstrumentAxis__custom--PurchaseAgreementMember_z3F04zzfna9f" title="Aggregate principal amount">3,000,000 agreed to waive its rights under Section 4.17 of the SPA to participate in Subsequent Financings with respect to the NYDIG Transactions and any additional loans under the MEFA that only finance the purchase of equipment from NYDIG, in order to consent to the NYDIG Transactions. Pursuant to the Consent, the Investors also waived the current requirement of the SPA and the other Transaction Documents (collectively, the “SPA Documents”) that the Borrower become an Additional Debtor (as defined in the Security Agreement) and execute an Additional Debtor Joinder (as defined in the Security Agreement) for so long as the Specified Loans are outstanding, and NYDIG not entering into a subordination or intercreditor agreement with respect to the Guaranty. Further, pursuant to the Consent, the Purchasers waived the right to accelerate the Maturity Date of the Notes and the right to charge a default rate of interest on such Notes, in each case, with respect to certain changes in names of, and jurisdiction of incorporation, of the Debtors (as defined in the SPA Documents), which waiver does not waive any other Event of Default (as defined in any of the SPA Documents), known or unknown, as of the date of Consent. Promptly after the date of the Consent, the Company warrants to purchase up to <span id="xdx_907_ecustom--InvestmentSharesPurchased_iI_c20220114__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--InvestorsMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zO0DP7eiM3ek" title="Investment Shares Purchased">85,000 shares of common stock to the Convertible Investor holding the largest outstanding principal amount of Notes as of the date of the Consent. Such warrants are substantially in form similar to the other Warrants held by the Convertible Investors. Such warrants are exercisable for three years from the date of the Consent at an exercise price per share of the Company’s common stock, equal to 130% of the closing price per share of the common stock as of the date of the Consent. Promissory Notes On February 22, 2022, <span id="xdx_904_eus-gaap--DebtInstrumentDescription_c20220221__20220222__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--InvestorsMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_z7kiRjBuh713" title="Debt Instrument, Description">the Company issued to certain institutional lenders (the “Lenders”) promissory notes in an aggregate principal amount of $7.6 million for an aggregate purchase price of $7.6 million (collectively, the “First Tranche Notes”). The Notes were issued as the first tranche of an aggregate financing of $20.0 million. On March 10, 2022, the Company has issued to the lenders a second tranche of an aggregate principal amount of $2.4 million (the “Second Tranche Notes”). The Company expects to issue to the Lenders a third tranche of promissory notes in an aggregate principal amount of $10.0 million for an aggregate purchase price of $10.0 million (the “Third Tranche Notes” and, together with the First Tranche Notes and Second Tranche Notes, the “Notes”) along with Class D common stock purchase warrants (collectively, the “Warrants”) to purchase up to an aggregate of <span id="xdx_90A_ecustom--AggregatePurchasePrice_pn3n3_c20220221__20220222__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zFNN7c36DSNb" title="Aggregate Purchase Price">500,000 shares of common stock of the Company, at an exercise price of $11.50 per share. The Warrants will be immediately exercisable for two years upon issuance, subject to applicable Nasdaq Stock Market LLC rules. The Warrants will only be issued if and when the Third Tranche Notes are issued. The First Tranche Notes have a maturity date of February 22, 2027, <span id="xdx_90E_eus-gaap--DebtInstrumentConvertibleTermsOfConversionFeature_c20270221__20270222__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zNk3HMotgFf4" title="Description of tranche maturity">the Second Tranche Notes have a maturity date of March 10, 2027 and Third Tranche will have a maturity date five years from the date of issuance (each a “Maturity Date”), upon which dates the Notes shall be payable in full, and accrue interest at a rate of two percent (2%) per annum. The Notes may be repaid, at such Lender’s sole election, either (a) at the applicable Maturity Date or (b) upon the first business day of each month that the Company keeps open a private offering of its Series A Preferred Stock by presenting its Note in whole or in part as legal tender to purchase such shares of Series A Preferred Stock at price per share of Series A Preferred Stock on the date immediately preceding the closing of such subscription, provided that if the Notes are not repaid by May 2, 2022, the Notes shall automatically be subscribed for shares of the Series A Preferred Stock. If any Event of Default occurs, the outstanding principal amount of the Notes, liquidated damages and other amounts owing in respect thereof through the date of acceleration, will become, at the Lender’s election, immediately due and payable in cash. The Notes may be prepaid or redeemed upon written notice to the other party. The exercise of the Warrants will be subject to beneficial ownership limitations such that the Lenders may not exercise the Warrants to the extent that such exercise would result in each of the Lenders being the beneficial owner in excess of <span id="xdx_90F_eus-gaap--DebtInstrumentInterestRateEffectivePercentage_iI_dp_c20220222__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--InvestorsMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zLGsUSTHnx99">4.99% (or, upon election of such Lender, 9.99%) of the number of shares of the Common Stock outstanding immediately after giving effect to the issuance of shares of Common Stock issuable upon such exercise, which beneficial ownership limitation may be increased or decreased up to 9.99% upon notice to the Company, provided that any increase in such limitation will not be effective until 61 days following notice to the Company.

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<mkty:AggregateFinancingValue contextRef="From2021-01-012021-12-31_custom_InvestorsMember" decimals="0" unitRef="USD"> 14400000 </mkty:AggregateFinancingValue>

<mkty:AggregateFinancingValue contextRef="From2022-01-132022-01-14_custom_InvestorsMember_us-gaap_SubsequentEventMember" decimals="0" unitRef="USD"> 4600000 </mkty:AggregateFinancingValue>

<us-gaap:DebtInstrumentInterestRateEffectivePercentage contextRef="AsOf2022-01-14_custom_InvestorsMember_us-gaap_SubsequentEventMember" decimals="INF" unitRef="Pure"> 0.14 </us-gaap:DebtInstrumentInterestRateEffectivePercentage>

<mkty:AggregateFinancingValue contextRef="From2022-01-132022-01-14_us-gaap_SubsequentEventMember" decimals="-5" unitRef="USD"> 9600000 </mkty:AggregateFinancingValue>

<mkty:AggregatePrincipalAmount contextRef="From2022-01-132022-01-14_custom_InvestorsMember_us-gaap_SubsequentEventMember_custom_PurchaseAgreementMember" decimals="-3" unitRef="USD"> 3000000000 </mkty:AggregatePrincipalAmount>

<mkty:InvestmentSharesPurchased contextRef="AsOf2022-01-14_custom_InvestorsMember_us-gaap_SubsequentEventMember_us-gaap_CommonStockMember" decimals="INF" unitRef="Shares"> 85000 </mkty:InvestmentSharesPurchased>

<us-gaap:DebtInstrumentDescription contextRef="From2022-02-212022-02-22_custom_InvestorsMember_us-gaap_SubsequentEventMember"> the Company issued to certain institutional lenders (the “Lenders”) promissory notes in an aggregate principal amount of $7.6 million for an aggregate purchase price of $7.6 million (collectively, the “First Tranche Notes”). The Notes were issued as the first tranche of an aggregate financing of $20.0 million. On March 10, 2022, the Company has issued to the lenders a second tranche of an aggregate principal amount of $2.4 million (the “Second Tranche Notes”). The Company expects to issue to the Lenders a third tranche of promissory notes in an aggregate principal amount of $10.0 million for an aggregate purchase price of $10.0 million </us-gaap:DebtInstrumentDescription>

<mkty:AggregatePurchasePrice contextRef="From2022-02-212022-02-22_us-gaap_SubsequentEventMember_us-gaap_CommonStockMember" decimals="-3" unitRef="USD"> 500000000 </mkty:AggregatePurchasePrice>

<us-gaap:DebtInstrumentConvertibleTermsOfConversionFeature contextRef="From2027-02-212027-02-22_us-gaap_SubsequentEventMember"> the Second Tranche Notes have a maturity date of March 10, 2027 and Third Tranche will have a maturity date five years from the date of issuance (each a “Maturity Date”), upon which dates the Notes shall be payable in full, and accrue interest at a rate of two percent (2%) per annum. </us-gaap:DebtInstrumentConvertibleTermsOfConversionFeature>

<us-gaap:DebtInstrumentInterestRateEffectivePercentage contextRef="AsOf2022-02-22_custom_InvestorsMember_us-gaap_SubsequentEventMember" decimals="INF" unitRef="Pure"> 0.0499 </us-gaap:DebtInstrumentInterestRateEffectivePercentage>

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11 Subsequent Filings that Reference this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 4/01/24  Soluna Holdings, Inc.             10-K       12/31/23  124:15M                                    M2 Compliance LLC/FA
 5/01/23  Soluna Holdings, Inc.             10-K/A     12/31/22   14:951K                                   M2 Compliance LLC/FA
 3/31/23  Soluna Holdings, Inc.             10-K       12/31/22  120:14M                                    M2 Compliance LLC/FA
12/05/22  Soluna Holdings, Inc.             424B5                  1:683K                                   M2 Compliance LLC/FA
10/26/22  Soluna Holdings, Inc.             424B5                  1:762K                                   M2 Compliance LLC/FA
10/21/22  Soluna Holdings, Inc.             424B5                  1:787K                                   M2 Compliance LLC/FA
 8/15/22  Soluna Holdings, Inc.             10-Q        6/30/22   85:7.7M                                   Genesis Filings LLC/FA
 6/09/22  Soluna Holdings, Inc.             424B5                  1:824K                                   Genesis Filings LLC/FA
 5/16/22  Soluna Holdings, Inc.             10-Q        3/31/22   78:6.2M                                   Genesis Filings LLC/FA
 4/29/22  Soluna Holdings, Inc.             424B5                  1:903K                                   Genesis Filings LLC/FA
 4/29/22  Soluna Holdings, Inc.             424B5                  1:863K                                   Genesis Filings LLC/FA

27 Previous Filings that this Filing References

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 1/21/22  Soluna Holdings, Inc.             8-K:5,9     1/21/22   13:628K                                   Genesis Filings LLC/FA
 1/18/22  Soluna Holdings, Inc.             8-K:1,7,9   1/18/22   16:1.1M                                   Genesis Filings LLC/FA
12/29/21  Soluna Holdings, Inc.             8-K:1,5,8,912/28/21   17:891K                                   Genesis Filings LLC/FA
11/04/21  Soluna Holdings, Inc.             8-K:2,5,9  10/29/21   13:950K                                   Genesis Filings LLC/FA
10/25/21  Soluna Holdings, Inc.             8-K:1,2,3,810/25/21   20:1.8M                                   Genesis Filings LLC/FA
10/07/21  Soluna Holdings, Inc.             DEF 14A    10/29/21    1:1M                                     Genesis Filings LLC/FA
 8/23/21  Soluna Holdings, Inc.             8-K:1,3,5,8 8/23/21   14:650K                                   Genesis Filings LLC/FA
 8/19/21  Soluna Holdings, Inc.             8-A12B                 3:581K                                   Genesis Filings LLC/FA
 8/12/21  Soluna Holdings, Inc.             8-K:1,8,9   8/11/21   13:736K                                   Genesis Filings LLC/FA
 6/15/21  Soluna Holdings, Inc.             8-K:5,9     6/09/21    2:449K                                   Genesis Filings LLC/FA
 5/17/21  Soluna Holdings, Inc.             10-Q        3/31/21   61:2.8M                                   EDGARX.com, LLC/FA
 5/04/21  Soluna Holdings, Inc.             8-K:1,8,9   5/04/21    7:621K                                   Genesis Filings LLC/FA
 4/21/21  Soluna Holdings, Inc.             S-1/A                  2:252K                                   Genesis Filings LLC/FA
 4/12/21  Soluna Holdings, Inc.             8-K:1,8,9   4/11/21    3:109K                                   Genesis Filings LLC/FA
 4/02/21  Soluna Holdings, Inc.             S-1/A                  7:1.8M                                   Genesis Filings LLC/FA
 3/31/21  Soluna Holdings, Inc.             10-K       12/31/20   94:8.2M                                   EDGARX.com, LLC/FA
 9/30/20  Soluna Holdings, Inc.             10-12G                18:4.9M                                   EDGARX.com, LLC/FA
 3/04/20  Soluna Holdings, Inc.             10-12G                 8:2.8M                                   EDGARX.com, LLC/FA
 3/02/17  Soluna Holdings, Inc.             10-K       12/31/16   75:4.5M                                   EDGARX.com, LLC/FA
10/21/16  Soluna Holdings, Inc.             8-K:1,3,5,910/17/16    6:684K                                   EDGARX.com, LLC/FA
 8/04/16  Soluna Holdings, Inc.             10-Q        6/30/16   53:3.6M                                   EDGARX.com, LLC/FA
 6/24/14  Soluna Holdings, Inc.             S-8         6/24/14    6:286K                                   EDGARX.com, LLC/FA
 5/08/14  Soluna Holdings, Inc.             10-Q        3/31/14   64:3.4M                                   EDGARX.com, LLC/FA
 4/25/14  Soluna Holdings, Inc.             DEF 14A     6/11/14    1:606K                                   EDGARX.com, LLC/FA
 8/09/12  Soluna Holdings, Inc.             10-Q        6/30/12   72:5.9M                                   EDGARX.com, LLC/FA
 3/31/10  Soluna Holdings, Inc.             10-K       12/31/09    9:2.3M                                   DG3/FA
12/28/99  Soluna Holdings, Inc.             10-K        9/30/99   12:692K

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Filing Submission 0001753926-22-000384 – Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

Soluna Holdings, Inc. – ‘10-K’ for 12/31/21 – ‘XML’

On: Thursday, 3/31/22, at 5:23pm ET · For: 12/31/21 · Accession #: 1753926-22-384 · File #: 1-40261

Annual Report — Form 10-KFiling Table of Contents

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11 Subsequent Filings that Reference this Filing

27 Previous Filings that this Filing References

Annual Report — Form 10-K

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