| | | | | | | | | | | | | | | | | | | | | |
<?xml version="1.0" encoding="windows-1252"?> |
<FilingSummary> |
| <Version> 3.23.1 </Version> |
| <ProcessingTime/> |
| <ReportFormat> html </ReportFormat> |
| <ContextCount> 166 </ContextCount> |
| <ElementCount> 310 </ElementCount> |
| <EntityCount> 1 </EntityCount> |
| <FootnotesReported> true </FootnotesReported> |
| <SegmentCount> 61 </SegmentCount> |
| <ScenarioCount> 0 </ScenarioCount> |
| <TuplesReported> false </TuplesReported> |
| <UnitCount> 7 </UnitCount> |
| <MyReports> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R1.htm </HtmlFileName> |
| | | <LongName> 000 - Document - Document And Entity Information </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-document-and-entity-information </Role> |
| | | <ShortName> Document And Entity Information </ShortName> |
| | | <MenuCategory> Cover </MenuCategory> |
| | | <Position> 1 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R2.htm </HtmlFileName> |
| | | <LongName> 001 - Statement - Consolidated Balance Sheets </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-consolidated-balance-sheets- </Role> |
| | | <ShortName> Consolidated Balance Sheets </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 2 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R3.htm </HtmlFileName> |
| | | <LongName> 002 - Statement - Consolidated Balance Sheets (Parentheticals) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-consolidated-balance-sheets-parentheticals </Role> |
| | | <ShortName> Consolidated Balance Sheets (Parentheticals) </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 3 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R4.htm </HtmlFileName> |
| | | <LongName> 003 - Statement - Consolidated Statements of Operations </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-consolidated-statements-of-operations </Role> |
| | | <ShortName> Consolidated Statements of Operations </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 4 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R5.htm </HtmlFileName> |
| | | <LongName> 004 - Statement - Consolidated Statements of Changes in Stockholders' Equity </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-consolidated-statements-of-changes-in-stockholders-equity </Role> |
| | | <ShortName> Consolidated Statements of Changes in Stockholders' Equity </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 5 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R6.htm </HtmlFileName> |
| | | <LongName> 005 - Statement - Consolidated Statements of Cash Flows </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-consolidated-statements-of-cash-flows </Role> |
| | | <ShortName> Consolidated Statements of Cash Flows </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 6 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R7.htm </HtmlFileName> |
| | | <LongName> 006 - Disclosure - Note 1 - Business Description </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-1-business-description </Role> |
| | | <ShortName> Note 1 - Business Description </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 7 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R8.htm </HtmlFileName> |
| | | <LongName> 007 - Disclosure - Note 2 - Summary of Significant Accounting Policies </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-2-summary-of-significant-accounting-policies </Role> |
| | | <ShortName> Note 2 - Summary of Significant Accounting Policies </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 8 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R9.htm </HtmlFileName> |
| | | <LongName> 008 - Disclosure - Note 3 - Revenue </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-3-revenue </Role> |
| | | <ShortName> Note 3 - Revenue </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 9 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R10.htm </HtmlFileName> |
| | | <LongName> 009 - Disclosure - Note 4 - Inventories </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-4-inventories </Role> |
| | | <ShortName> Note 4 - Inventories </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 10 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R11.htm </HtmlFileName> |
| | | <LongName> 010 - Disclosure - Note 5 - Property, Plant and Equipment </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-5-property-plant-and-equipment </Role> |
| | | <ShortName> Note 5 - Property, Plant and Equipment </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 11 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R12.htm </HtmlFileName> |
| | | <LongName> 011 - Disclosure - Note 6 - Intangible Assets </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-6-intangible-assets </Role> |
| | | <ShortName> Note 6 - Intangible Assets </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 12 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R13.htm </HtmlFileName> |
| | | <LongName> 012 - Disclosure - Note 7 - Accrued Expenses </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-7-accrued-expenses </Role> |
| | | <ShortName> Note 7 - Accrued Expenses </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 13 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R14.htm </HtmlFileName> |
| | | <LongName> 013 - Disclosure - Note 8 - Long-term Debt </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-8-longterm-debt </Role> |
| | | <ShortName> Note 8 - Long-term Debt </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 14 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R15.htm </HtmlFileName> |
| | | <LongName> 014 - Disclosure - Note 9 - Earnings Per Share </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-9-earnings-per-share </Role> |
| | | <ShortName> Note 9 - Earnings Per Share </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 15 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R16.htm </HtmlFileName> |
| | | <LongName> 015 - Disclosure - Note 10 - Income Taxes </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-10-income-taxes </Role> |
| | | <ShortName> Note 10 - Income Taxes </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 16 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R17.htm </HtmlFileName> |
| | | <LongName> 016 - Disclosure - Note 11 - Employee Retention Credit </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-11-employee-retention-credit </Role> |
| | | <ShortName> Note 11 - Employee Retention Credit </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 17 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R18.htm </HtmlFileName> |
| | | <LongName> 017 - Disclosure - Note 12 - Stock-based Compensation </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-12-stockbased-compensation </Role> |
| | | <ShortName> Note 12 - Stock-based Compensation </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 18 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R19.htm </HtmlFileName> |
| | | <LongName> 018 - Disclosure - Note 13 - Defined Contribution Plan </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-13-defined-contribution-plan </Role> |
| | | <ShortName> Note 13 - Defined Contribution Plan </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 19 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R20.htm </HtmlFileName> |
| | | <LongName> 019 - Disclosure - Note 14 - Segment Reporting </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-14-segment-reporting </Role> |
| | | <ShortName> Note 14 - Segment Reporting </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 20 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R21.htm </HtmlFileName> |
| | | <LongName> 020 - Disclosure - Note 15 - Risks and Uncertainties </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-15-risks-and-uncertainties </Role> |
| | | <ShortName> Note 15 - Risks and Uncertainties </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 21 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R22.htm </HtmlFileName> |
| | | <LongName> 021 - Disclosure - Significant Accounting Policies (Policies) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-significant-accounting-policies-policies </Role> |
| | | <ShortName> Significant Accounting Policies (Policies) </ShortName> |
| | | <MenuCategory> Policies </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-2-summary-of-significant-accounting-policies </ParentRole> |
| | | <Position> 22 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R23.htm </HtmlFileName> |
| | | <LongName> 022 - Disclosure - Note 3 - Revenue (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-3-revenue-tables </Role> |
| | | <ShortName> Note 3 - Revenue (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-3-revenue </ParentRole> |
| | | <Position> 23 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R24.htm </HtmlFileName> |
| | | <LongName> 023 - Disclosure - Note 4 - Inventories (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-4-inventories-tables </Role> |
| | | <ShortName> Note 4 - Inventories (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-4-inventories </ParentRole> |
| | | <Position> 24 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R25.htm </HtmlFileName> |
| | | <LongName> 024 - Disclosure - Note 5 - Property, Plant and Equipment (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-5-property-plant-and-equipment-tables </Role> |
| | | <ShortName> Note 5 - Property, Plant and Equipment (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-5-property-plant-and-equipment </ParentRole> |
| | | <Position> 25 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R26.htm </HtmlFileName> |
| | | <LongName> 025 - Disclosure - Note 6 - Intangible Assets (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-6-intangible-assets-tables </Role> |
| | | <ShortName> Note 6 - Intangible Assets (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-6-intangible-assets </ParentRole> |
| | | <Position> 26 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R27.htm </HtmlFileName> |
| | | <LongName> 026 - Disclosure - Note 7 - Accrued Expenses (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-7-accrued-expenses-tables </Role> |
| | | <ShortName> Note 7 - Accrued Expenses (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-7-accrued-expenses </ParentRole> |
| | | <Position> 27 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R28.htm </HtmlFileName> |
| | | <LongName> 027 - Disclosure - Note 8 - Long-term Debt (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-8-longterm-debt-tables </Role> |
| | | <ShortName> Note 8 - Long-term Debt (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-8-longterm-debt </ParentRole> |
| | | <Position> 28 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R29.htm </HtmlFileName> |
| | | <LongName> 028 - Disclosure - Note 9 - Earnings Per Share (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-9-earnings-per-share-tables </Role> |
| | | <ShortName> Note 9 - Earnings Per Share (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-9-earnings-per-share </ParentRole> |
| | | <Position> 29 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R30.htm </HtmlFileName> |
| | | <LongName> 029 - Disclosure - Note 10 - Income Taxes (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-10-income-taxes-tables </Role> |
| | | <ShortName> Note 10 - Income Taxes (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-10-income-taxes </ParentRole> |
| | | <Position> 30 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R31.htm </HtmlFileName> |
| | | <LongName> 030 - Disclosure - Note 12 - Stock-based Compensation (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-12-stockbased-compensation-tables </Role> |
| | | <ShortName> Note 12 - Stock-based Compensation (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-12-stockbased-compensation </ParentRole> |
| | | <Position> 31 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R32.htm </HtmlFileName> |
| | | <LongName> 031 - Disclosure - Note 14 - Segment Reporting (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-14-segment-reporting-tables </Role> |
| | | <ShortName> Note 14 - Segment Reporting (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-14-segment-reporting </ParentRole> |
| | | <Position> 32 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R33.htm </HtmlFileName> |
| | | <LongName> 032 - Disclosure - Note 1 - Business Description (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-1-business-description-details-textual </Role> |
| | | <ShortName> Note 1 - Business Description (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-1-business-description </ParentRole> |
| | | <Position> 33 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R34.htm </HtmlFileName> |
| | | <LongName> 033 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-2-summary-of-significant-accounting-policies-details-textual </Role> |
| | | <ShortName> Note 2 - Summary of Significant Accounting Policies (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 34 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R35.htm </HtmlFileName> |
| | | <LongName> 034 - Disclosure - Note 3 - Revenue (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-3-revenue-details-textual </Role> |
| | | <ShortName> Note 3 - Revenue (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-3-revenue-tables </ParentRole> |
| | | <Position> 35 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R36.htm </HtmlFileName> |
| | | <LongName> 035 - Disclosure - Note 3 - Revenue - Disaggregation of Revenue (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-3-revenue-disaggregation-of-revenue-details </Role> |
| | | <ShortName> Note 3 - Revenue - Disaggregation of Revenue (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 36 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R37.htm </HtmlFileName> |
| | | <LongName> 036 - Disclosure - Note 3 - Revenue - Costs, Estimated Earnings, and Billings on Uncompleted Contracts (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-3-revenue-costs-estimated-earnings-and-billings-on-uncompleted-contracts-details </Role> |
| | | <ShortName> Note 3 - Revenue - Costs, Estimated Earnings, and Billings on Uncompleted Contracts (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 37 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R38.htm </HtmlFileName> |
| | | <LongName> 037 - Disclosure - Note 4 - Inventories - Components of Inventories (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-4-inventories-components-of-inventories-details </Role> |
| | | <ShortName> Note 4 - Inventories - Components of Inventories (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 38 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R39.htm </HtmlFileName> |
| | | <LongName> 038 - Disclosure - Note 5 - Property, Plant and Equipment (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-5-property-plant-and-equipment-details-textual </Role> |
| | | <ShortName> Note 5 - Property, Plant and Equipment (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-5-property-plant-and-equipment-tables </ParentRole> |
| | | <Position> 39 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R40.htm </HtmlFileName> |
| | | <LongName> 039 - Disclosure - Note 5 - Property, Plant and Equipment - Major Classes of Property, Plant and Equipment (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-5-property-plant-and-equipment-major-classes-of-property-plant-and-equipment-details </Role> |
| | | <ShortName> Note 5 - Property, Plant and Equipment - Major Classes of Property, Plant and Equipment (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 40 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R41.htm </HtmlFileName> |
| | | <LongName> 040 - Disclosure - Note 6 - Intangible Assets (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-6-intangible-assets-details-textual </Role> |
| | | <ShortName> Note 6 - Intangible Assets (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-6-intangible-assets-tables </ParentRole> |
| | | <Position> 41 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R42.htm </HtmlFileName> |
| | | <LongName> 041 - Disclosure - Note 6 - Intangible Assets - Summary of Intangible Assets (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-6-intangible-assets-summary-of-intangible-assets-details </Role> |
| | | <ShortName> Note 6 - Intangible Assets - Summary of Intangible Assets (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 42 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R43.htm </HtmlFileName> |
| | | <LongName> 042 - Disclosure - Note 6 - Intangible Assets - Estimated Amortization Expense Related to Intangible Assets (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-6-intangible-assets-estimated-amortization-expense-related-to-intangible-assets-details </Role> |
| | | <ShortName> Note 6 - Intangible Assets - Estimated Amortization Expense Related to Intangible Assets (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 43 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R44.htm </HtmlFileName> |
| | | <LongName> 043 - Disclosure - Note 7 - Accrued Expenses - Schedule of Accrued Expenses (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-7-accrued-expenses-schedule-of-accrued-expenses-details </Role> |
| | | <ShortName> Note 7 - Accrued Expenses - Schedule of Accrued Expenses (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 44 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R45.htm </HtmlFileName> |
| | | <LongName> 044 - Disclosure - Note 8 - Long-term Debt (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-8-longterm-debt-details-textual </Role> |
| | | <ShortName> Note 8 - Long-term Debt (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-8-longterm-debt-tables </ParentRole> |
| | | <Position> 45 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R46.htm </HtmlFileName> |
| | | <LongName> 045 - Disclosure - Note 8 - Long-term Debt - Summary of Long-term Debt (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-8-longterm-debt-summary-of-longterm-debt-details </Role> |
| | | <ShortName> Note 8 - Long-term Debt - Summary of Long-term Debt (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 46 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R47.htm </HtmlFileName> |
| | | <LongName> 046 - Disclosure - Note 8 - Long-term Debt - Summary of Long-term Debt (Details) (Parentheticals) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-8-longterm-debt-summary-of-longterm-debt-details-parentheticals </Role> |
| | | <ShortName> Note 8 - Long-term Debt - Summary of Long-term Debt (Details) (Parentheticals) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 47 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R48.htm </HtmlFileName> |
| | | <LongName> 047 - Disclosure - Note 8 - Long-term Debt - Future Maturities of Long-term Debt (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-8-longterm-debt-future-maturities-of-longterm-debt-details </Role> |
| | | <ShortName> Note 8 - Long-term Debt - Future Maturities of Long-term Debt (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 48 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R49.htm </HtmlFileName> |
| | | <LongName> 048 - Disclosure - Note 9 - Earnings Per Share (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-9-earnings-per-share-details-textual </Role> |
| | | <ShortName> Note 9 - Earnings Per Share (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-9-earnings-per-share-tables </ParentRole> |
| | | <Position> 49 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R50.htm </HtmlFileName> |
| | | <LongName> 049 - Disclosure - Note 9 - Earnings Per Share - Calculation of Basic and Diluted Weighted Average Common Shares (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-9-earnings-per-share-calculation-of-basic-and-diluted-weighted-average-common-shares-details </Role> |
| | | <ShortName> Note 9 - Earnings Per Share - Calculation of Basic and Diluted Weighted Average Common Shares (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 50 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R51.htm </HtmlFileName> |
| | | <LongName> 050 - Disclosure - Note 10 - Income Taxes (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-10-income-taxes-details-textual </Role> |
| | | <ShortName> Note 10 - Income Taxes (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-10-income-taxes-tables </ParentRole> |
| | | <Position> 51 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R52.htm </HtmlFileName> |
| | | <LongName> 051 - Disclosure - Note 10 - Income Taxes - Components of Income Taxes (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-10-income-taxes-components-of-income-taxes-details </Role> |
| | | <ShortName> Note 10 - Income Taxes - Components of Income Taxes (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 52 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R53.htm </HtmlFileName> |
| | | <LongName> 052 - Disclosure - Note 10 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-10-income-taxes-effective-income-tax-rate-reconciliation-details </Role> |
| | | <ShortName> Note 10 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 53 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R54.htm </HtmlFileName> |
| | | <LongName> 053 - Disclosure - Note 10 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) (Parentheticals) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-10-income-taxes-effective-income-tax-rate-reconciliation-details-parentheticals </Role> |
| | | <ShortName> Note 10 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) (Parentheticals) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 54 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R55.htm </HtmlFileName> |
| | | <LongName> 054 - Disclosure - Note 10 - Income Taxes - Deferred Tax Assets and Liabilities (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-10-income-taxes-deferred-tax-assets-and-liabilities-details </Role> |
| | | <ShortName> Note 10 - Income Taxes - Deferred Tax Assets and Liabilities (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 55 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R56.htm </HtmlFileName> |
| | | <LongName> 055 - Disclosure - Note 11 - Employee Retention Credit (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-11-employee-retention-credit-details-textual </Role> |
| | | <ShortName> Note 11 - Employee Retention Credit (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-11-employee-retention-credit </ParentRole> |
| | | <Position> 56 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R57.htm </HtmlFileName> |
| | | <LongName> 056 - Disclosure - Note 12 - Stock-based Compensation (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-12-stockbased-compensation-details-textual </Role> |
| | | <ShortName> Note 12 - Stock-based Compensation (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-12-stockbased-compensation-tables </ParentRole> |
| | | <Position> 57 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R58.htm </HtmlFileName> |
| | | <LongName> 057 - Disclosure - Note 12 - Stock-based Compensation - Compensation Expense (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-12-stockbased-compensation-compensation-expense-details </Role> |
| | | <ShortName> Note 12 - Stock-based Compensation - Compensation Expense (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 58 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R59.htm </HtmlFileName> |
| | | <LongName> 058 - Disclosure - Note 12 - Stock-based Compensation - Assumptions (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-12-stockbased-compensation-assumptions-details </Role> |
| | | <ShortName> Note 12 - Stock-based Compensation - Assumptions (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 59 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R60.htm </HtmlFileName> |
| | | <LongName> 059 - Disclosure - Note 12 - Stock-based Compensation - Stock Option Plan (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-12-stockbased-compensation-stock-option-plan-details </Role> |
| | | <ShortName> Note 12 - Stock-based Compensation - Stock Option Plan (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 60 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R61.htm </HtmlFileName> |
| | | <LongName> 060 - Disclosure - Note 12 - Stock-based Compensation - Outstanding and Exercisable Options (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-12-stockbased-compensation-outstanding-and-exercisable-options-details </Role> |
| | | <ShortName> Note 12 - Stock-based Compensation - Outstanding and Exercisable Options (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 61 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R62.htm </HtmlFileName> |
| | | <LongName> 061 - Disclosure - Note 12 - Stock-based Compensation - Restricted Stock and Restricted Stock Units Activity (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-12-stockbased-compensation-restricted-stock-and-restricted-stock-units-activity-details </Role> |
| | | <ShortName> Note 12 - Stock-based Compensation - Restricted Stock and Restricted Stock Units Activity (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 62 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R63.htm </HtmlFileName> |
| | | <LongName> 062 - Disclosure - Note 13 - Defined Contribution Plan (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-13-defined-contribution-plan-details-textual </Role> |
| | | <ShortName> Note 13 - Defined Contribution Plan (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-13-defined-contribution-plan </ParentRole> |
| | | <Position> 63 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R64.htm </HtmlFileName> |
| | | <LongName> 063 - Disclosure - Note 14 - Segment Reporting (Details Textual) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-14-segment-reporting-details-textual </Role> |
| | | <ShortName> Note 14 - Segment Reporting (Details Textual) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.cvdequipment.com/20221231/role/statement-note-14-segment-reporting-tables </ParentRole> |
| | | <Position> 64 </Position> |
| | | </Report> |
| | <Report instance="cvv20221231_10k.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R65.htm </HtmlFileName> |
| | | <LongName> 064 - Disclosure - Note 14 - Segment Reporting - Segment Information (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.cvdequipment.com/20221231/role/statement-note-14-segment-reporting-segment-information-details </Role> |
| | | <ShortName> Note 14 - Segment Reporting - Segment Information (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 65 </Position> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <LongName> All Reports </LongName> |
| | | <ReportType> Book </ReportType> |
| | | <ShortName> All Reports </ShortName> |
| | | </Report> |
| | </MyReports> |
| <Logs> |
| | <Log type="Warning"> [dq-0542-Deprecated-Concept] Concept LondonInterbankOfferedRateLIBORMember in us-gaap/2022 used in 2 facts was deprecated in us-gaap/2023 as of 2023 and should not be used. cvv20221231_10k.htm 11763, 11970 </Log> |
| | <Log type="Warning"> [ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 13 fact(s) appearing in ix:hidden were eligible for transformation: cvv:StandardProductWarrantyPeriodFromDateOfShipment, cvv:StandardProductWarrantyPeriodFromFinalAcceptance, dei:CurrentFiscalYearEndDate, us-gaap:CapitalizedContractCostImpairmentLoss, us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount, us-gaap:NumberOfOperatingSegments, us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1, us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod - cvv20221231_10k.htm 10, 13, 14, 15, 16, 17, 18, 19, 22, 23, 24, 25, 26 </Log> |
| | </Logs> |
| <InputFiles> |
| | <File doctype="10-K" original="cvv20221231_10k.htm"> cvv20221231_10k.htm </File> |
| | <File> cvv-20221231.xsd </File> |
| | <File> cvv-20221231_cal.xml </File> |
| | <File> cvv-20221231_def.xml </File> |
| | <File> cvv-20221231_lab.xml </File> |
| | <File> cvv-20221231_pre.xml </File> |
| | <File> ex_490941.htm </File> |
| | <File> ex_490942.htm </File> |
| | <File> ex_490943.htm </File> |
| | <File> ex_490944.htm </File> |
| | <File> ex_490953.htm </File> |
| | </InputFiles> |
| <SupplementalFiles/> |
| <BaseTaxonomies> |
| | <BaseTaxonomy items="671"> http://fasb.org/us-gaap/2022 </BaseTaxonomy> |
| | <BaseTaxonomy items="37"> http://xbrl.sec.gov/dei/2022 </BaseTaxonomy> |
| | </BaseTaxonomies> |
| <HasPresentationLinkbase> true </HasPresentationLinkbase> |
| <HasCalculationLinkbase> true </HasCalculationLinkbase> |
| </FilingSummary> |