SEC Info  
    Home      Search      My Interests      Help      Sign In      Please Sign In

Idt Corp – ‘10-Q’ for 1/31/17 – ‘XML’

On:  Monday, 3/13/17, at 5:15pm ET   ·   For:  1/31/17   ·   Accession #:  1213900-17-2245   ·   File #:  1-16371

Previous ‘10-Q’:  ‘10-Q’ on 12/12/16 for 10/31/16   ·   Next:  ‘10-Q’ on 6/9/17 for 4/30/17   ·   Latest:  ‘10-Q’ on 3/11/24 for 1/31/24

Find Words in Filings emoji
 
  in    Show  and   Hints

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

 3/13/17  Idt Corp                          10-Q        1/31/17   68:3.8M                                   Edgar Agents LLC/FA

Quarterly Report   —   Form 10-Q   —   Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML    382K 
 2: EX-31.1     Certification -- §302 - SOA'02                      HTML     23K 
 3: EX-31.2     Certification -- §302 - SOA'02                      HTML     23K 
 4: EX-32.1     Certification -- §906 - SOA'02                      HTML     19K 
 5: EX-32.2     Certification -- §906 - SOA'02                      HTML     19K 
12: R1          Document and Entity Information                     HTML     39K 
13: R2          Consolidated Balance Sheets                         HTML    125K 
14: R3          Consolidated Balance Sheets (Parenthetical)         HTML     42K 
15: R4          Consolidated Statements of Income (Unaudited)       HTML     80K 
16: R5          Consolidated Statements of Comprehensive Income     HTML     44K 
                (Unaudited)                                                      
17: R6          Consolidated Statements of Cash Flows (Unaudited)   HTML    117K 
18: R7          Basis of Presentation                               HTML     24K 
19: R8          Zedge Spin-Off                                      HTML     31K 
20: R9          Investment in Cornerstone Pharmaceuticals, Inc.     HTML     30K 
21: R10         Marketable Securities                               HTML     59K 
22: R11         Fair Value Measurements                             HTML     40K 
23: R12         Derivative Instruments                              HTML     35K 
24: R13         Equity                                              HTML     47K 
25: R14         Earnings Per Share                                  HTML     36K 
26: R15         Revolving Credit Loan Payable                       HTML     24K 
27: R16         Accrued Severance Expense                           HTML     21K 
28: R17         Accumulated Other Comprehensive Loss                HTML     32K 
29: R18         Business Segment Information                        HTML     51K 
30: R19         Commitments and Contingencies                       HTML     41K 
31: R20         Other (Expense) Income, Net                         HTML     28K 
32: R21         Income Taxes                                        HTML     23K 
33: R22         Recently Issued Accounting Standard Not Yet         HTML     32K 
                Adopted                                                          
34: R23         Zedge Spin-Off (Tables)                             HTML     26K 
35: R24         Marketable Securities (Tables)                      HTML     87K 
36: R25         Fair Value Measurements (Tables)                    HTML     36K 
37: R26         Derivative Instruments (Tables)                     HTML     25K 
38: R27         Equity (Tables)                                     HTML     40K 
39: R28         Earnings Per Share (Tables)                         HTML     45K 
40: R29         Accumulated Other Comprehensive Loss (Tables)       HTML     27K 
41: R30         Business Segment Information (Tables)               HTML     60K 
42: R31         Commitments and Contingencies (Tables)              HTML     28K 
43: R32         Other (Expense) Income, Net (Tables)                HTML     31K 
44: R33         Zedge Spin-Off (Details)                            HTML     27K 
45: R34         Investment in Cornerstone Pharmaceuticals, Inc.     HTML     87K 
                (Details)                                                        
46: R35         Marketable Securities (Details)                     HTML     64K 
47: R36         Marketable Securities (Details 1)                   HTML     34K 
48: R37         Marketable Securities (Details 2)                   HTML     44K 
49: R38         Marketable Securities (Details Textual)             HTML     38K 
50: R39         Fair Value Measurements (Details)                   HTML     30K 
51: R40         Fair Value Measurements (Details Textual)           HTML     22K 
52: R41         Derivative Instruments (Details)                    HTML     21K 
53: R42         Equity (Details)                                    HTML     62K 
54: R43         Equity (Details Textual)                            HTML     60K 
55: R44         Earnings Per Share (Details)                        HTML     33K 
56: R45         Earnings Per Share (Details 1)                      HTML     22K 
57: R46         Revolving Credit Loan Payable (Details)             HTML     46K 
58: R47         Accrued Severance Expense (Details)                 HTML     26K 
59: R48         Accumulated Other Comprehensive Loss (Details)      HTML     48K 
60: R49         Business Segment Information (Details)              HTML     42K 
61: R50         Business Segment Information (Details Textual)      HTML     20K 
62: R51         Commitments and Contingencies (Details)             HTML     28K 
63: R52         Commitments and Contingencies (Details Textual)     HTML     40K 
64: R53         Other (Expense) Income, Net (Details)               HTML     33K 
65: R54         Income Taxes (Details)                              HTML     24K 
67: XML         IDEA XML File -- Filing Summary                      XML    117K 
66: EXCEL       IDEA Workbook of Financial Reports                  XLSX     61K 
 6: EX-101.INS  XBRL Instance -- idt-20170131                        XML   1.04M 
 8: EX-101.CAL  XBRL Calculations -- idt-20170131_cal                XML    137K 
 9: EX-101.DEF  XBRL Definitions -- idt-20170131_def                 XML    382K 
10: EX-101.LAB  XBRL Labels -- idt-20170131_lab                      XML    931K 
11: EX-101.PRE  XBRL Presentations -- idt-20170131_pre               XML    600K 
 7: EX-101.SCH  XBRL Schema -- idt-20170131                          XSD    127K 
68: ZIP         XBRL Zipped Folder -- 0001213900-17-002245-xbrl      Zip    100K 


‘XML’   —   IDEA XML File — Filing Summary


This Document is an IDEA XML File.


                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<FilingSummary>
<Version> 3.6.0.2 </Version>
<ProcessingTime/>
<ReportFormat> html </ReportFormat>
<ContextCount> 131 </ContextCount>
<ElementCount> 225 </ElementCount>
<EntityCount> 1 </EntityCount>
<FootnotesReported> true </FootnotesReported>
<SegmentCount> 48 </SegmentCount>
<ScenarioCount> 0 </ScenarioCount>
<TuplesReported> false </TuplesReported>
<UnitCount> 6 </UnitCount>
<MyReports>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R1.htm </HtmlFileName>
<LongName> 001 - Document - Document and Entity Information </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/DocumentandEntityInformation </Role>
<ShortName> Document and Entity Information </ShortName>
<MenuCategory> Cover </MenuCategory>
<Position> 1 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R2.htm </HtmlFileName>
<LongName> 002 - Statement - Consolidated Balance Sheets </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/ConsolidatedBalanceSheets </Role>
<ShortName> Consolidated Balance Sheets </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 2 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R3.htm </HtmlFileName>
<LongName> 003 - Statement - Consolidated Balance Sheets (Parenthetical) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/ConsolidatedBalanceSheetsParenthetical </Role>
<ShortName> Consolidated Balance Sheets (Parenthetical) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 3 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R4.htm </HtmlFileName>
<LongName> 004 - Statement - Consolidated Statements of Income (Unaudited) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/ConsolidatedStatementsOfIncomeUnaudited </Role>
<ShortName> Consolidated Statements of Income (Unaudited) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 4 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R5.htm </HtmlFileName>
<LongName> 005 - Statement - Consolidated Statements of Comprehensive Income (Unaudited) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/ConsolidatedStatementsOfComprehensiveIncomeUnaudited </Role>
<ShortName> Consolidated Statements of Comprehensive Income (Unaudited) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 5 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R6.htm </HtmlFileName>
<LongName> 006 - Statement - Consolidated Statements of Cash Flows (Unaudited) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/ConsolidatedStatementsOfCashFlowsUnaudited </Role>
<ShortName> Consolidated Statements of Cash Flows (Unaudited) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 6 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R7.htm </HtmlFileName>
<LongName> 007 - Disclosure - Basis of Presentation </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/BasisOfPresentation </Role>
<ShortName> Basis of Presentation </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 7 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R8.htm </HtmlFileName>
<LongName> 008 - Disclosure - Zedge Spin-Off </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/ZedgeSpinOff </Role>
<ShortName> Zedge Spin-Off </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 8 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R9.htm </HtmlFileName>
<LongName> 009 - Disclosure - Investment in Cornerstone Pharmaceuticals, Inc. </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/Investmentincornerstonepharmaceuticalsinc </Role>
<ShortName> Investment in Cornerstone Pharmaceuticals, Inc. </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 9 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R10.htm </HtmlFileName>
<LongName> 010 - Disclosure - Marketable Securities </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/MarketableSecurities </Role>
<ShortName> Marketable Securities </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 10 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R11.htm </HtmlFileName>
<LongName> 011 - Disclosure - Fair Value Measurements </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/FairValueMeasurements </Role>
<ShortName> Fair Value Measurements </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 11 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R12.htm </HtmlFileName>
<LongName> 012 - Disclosure - Derivative Instruments </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/DerivativeInstruments </Role>
<ShortName> Derivative Instruments </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 12 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R13.htm </HtmlFileName>
<LongName> 013 - Disclosure - Equity </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/Equity </Role>
<ShortName> Equity </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 13 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R14.htm </HtmlFileName>
<LongName> 014 - Disclosure - Earnings Per Share </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/EarningsPerShare </Role>
<ShortName> Earnings Per Share </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 14 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R15.htm </HtmlFileName>
<LongName> 015 - Disclosure - Revolving Credit Loan Payable </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/RevolvingCreditLoanPayable </Role>
<ShortName> Revolving Credit Loan Payable </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 15 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R16.htm </HtmlFileName>
<LongName> 016 - Disclosure - Accrued Severance Expense </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/AccruedSeveranceExpense </Role>
<ShortName> Accrued Severance Expense </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 16 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R17.htm </HtmlFileName>
<LongName> 017 - Disclosure - Accumulated Other Comprehensive Loss </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/AccumulatedOtherComprehensiveLoss </Role>
<ShortName> Accumulated Other Comprehensive Loss </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 17 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R18.htm </HtmlFileName>
<LongName> 018 - Disclosure - Business Segment Information </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/BusinessSegmentInformation </Role>
<ShortName> Business Segment Information </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 18 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R19.htm </HtmlFileName>
<LongName> 019 - Disclosure - Commitments and Contingencies </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/CommitmentsAndContingencies </Role>
<ShortName> Commitments and Contingencies </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 19 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R20.htm </HtmlFileName>
<LongName> 020 - Disclosure - Other (Expense) Income, Net </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/OtherExpenseIncomeNet </Role>
<ShortName> Other (Expense) Income, Net </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 20 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R21.htm </HtmlFileName>
<LongName> 021 - Disclosure - Income Taxes </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/IncomeTaxes </Role>
<ShortName> Income Taxes </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 21 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R22.htm </HtmlFileName>
<LongName> 022 - Disclosure - Recently Issued Accounting Standard Not Yet Adopted </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/RecentlyIssuedAccountingStandardNotYetAdopted </Role>
<ShortName> Recently Issued Accounting Standard Not Yet Adopted </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 22 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R23.htm </HtmlFileName>
<LongName> 023 - Disclosure - Zedge Spin-Off (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/ZedgeSpinOffTables </Role>
<ShortName> Zedge Spin-Off (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.idt.net/role/ZedgeSpinOff </ParentRole>
<Position> 23 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R24.htm </HtmlFileName>
<LongName> 024 - Disclosure - Marketable Securities (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/MarketableSecuritiesTables </Role>
<ShortName> Marketable Securities (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.idt.net/role/MarketableSecurities </ParentRole>
<Position> 24 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R25.htm </HtmlFileName>
<LongName> 025 - Disclosure - Fair Value Measurements (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/FairValueMeasurementsTables </Role>
<ShortName> Fair Value Measurements (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.idt.net/role/FairValueMeasurements </ParentRole>
<Position> 25 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R26.htm </HtmlFileName>
<LongName> 026 - Disclosure - Derivative Instruments (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/DerivativeInstrumentsTables </Role>
<ShortName> Derivative Instruments (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.idt.net/role/DerivativeInstruments </ParentRole>
<Position> 26 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R27.htm </HtmlFileName>
<LongName> 027 - Disclosure - Equity (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/EquityTables </Role>
<ShortName> Equity (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.idt.net/role/Equity </ParentRole>
<Position> 27 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R28.htm </HtmlFileName>
<LongName> 028 - Disclosure - Earnings Per Share (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/EarningsPerShareTables </Role>
<ShortName> Earnings Per Share (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.idt.net/role/EarningsPerShare </ParentRole>
<Position> 28 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R29.htm </HtmlFileName>
<LongName> 029 - Disclosure - Accumulated Other Comprehensive Loss (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/AccumulatedOtherComprehensiveLosstables </Role>
<ShortName> Accumulated Other Comprehensive Loss (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.idt.net/role/AccumulatedOtherComprehensiveLoss </ParentRole>
<Position> 29 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R30.htm </HtmlFileName>
<LongName> 030 - Disclosure - Business Segment Information (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/BusinessSegmentInformationTables </Role>
<ShortName> Business Segment Information (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.idt.net/role/BusinessSegmentInformation </ParentRole>
<Position> 30 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R31.htm </HtmlFileName>
<LongName> 031 - Disclosure - Commitments and Contingencies (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/CommitmentsAndContingenciesTables </Role>
<ShortName> Commitments and Contingencies (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.idt.net/role/CommitmentsAndContingencies </ParentRole>
<Position> 31 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R32.htm </HtmlFileName>
<LongName> 032 - Disclosure - Other (Expense) Income, Net (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/OtherExpenseIncomeNetTables </Role>
<ShortName> Other (Expense) Income, Net (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.idt.net/role/OtherExpenseIncomeNet </ParentRole>
<Position> 32 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R33.htm </HtmlFileName>
<LongName> 033 - Disclosure - Zedge Spin-Off (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/ZedgeSpinOffDetails </Role>
<ShortName> Zedge Spin-Off (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/ZedgeSpinOffTables </ParentRole>
<Position> 33 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R34.htm </HtmlFileName>
<LongName> 034 - Disclosure - Investment in Cornerstone Pharmaceuticals, Inc. (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/InvestmentincornerstonepharmaceuticalsincDetails </Role>
<ShortName> Investment in Cornerstone Pharmaceuticals, Inc. (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/Investmentincornerstonepharmaceuticalsinc </ParentRole>
<Position> 34 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R35.htm </HtmlFileName>
<LongName> 035 - Disclosure - Marketable Securities (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/MarketableSecuritiesDetails </Role>
<ShortName> Marketable Securities (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/MarketableSecuritiesTables </ParentRole>
<Position> 35 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R36.htm </HtmlFileName>
<LongName> 036 - Disclosure - Marketable Securities (Details 1) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/MarketableSecuritiesDetails1 </Role>
<ShortName> Marketable Securities (Details 1) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/MarketableSecuritiesTables </ParentRole>
<Position> 36 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R37.htm </HtmlFileName>
<LongName> 037 - Disclosure - Marketable Securities (Details 2) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/MarketableSecuritiesDetails2 </Role>
<ShortName> Marketable Securities (Details 2) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/MarketableSecuritiesTables </ParentRole>
<Position> 37 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R38.htm </HtmlFileName>
<LongName> 038 - Disclosure - Marketable Securities (Details Textual) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/MarketableSecuritiesDetailsTextual </Role>
<ShortName> Marketable Securities (Details Textual) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/MarketableSecuritiesTables </ParentRole>
<Position> 38 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R39.htm </HtmlFileName>
<LongName> 039 - Disclosure - Fair Value Measurements (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/FairValueMeasurementsDetails </Role>
<ShortName> Fair Value Measurements (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/FairValueMeasurementsTables </ParentRole>
<Position> 39 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R40.htm </HtmlFileName>
<LongName> 040 - Disclosure - Fair Value Measurements (Details Textual) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/FairValueMeasurementsDetailsTextual </Role>
<ShortName> Fair Value Measurements (Details Textual) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/FairValueMeasurementsTables </ParentRole>
<Position> 40 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R41.htm </HtmlFileName>
<LongName> 041 - Disclosure - Derivative Instruments (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/DerivativeInstrumentsDetails </Role>
<ShortName> Derivative Instruments (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/DerivativeInstrumentsTables </ParentRole>
<Position> 41 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R42.htm </HtmlFileName>
<LongName> 042 - Disclosure - Equity (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/EquityDetails </Role>
<ShortName> Equity (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/EquityTables </ParentRole>
<Position> 42 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R43.htm </HtmlFileName>
<LongName> 043 - Disclosure - Equity (Details Textual) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/EquityDetailsTextual </Role>
<ShortName> Equity (Details Textual) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/EquityTables </ParentRole>
<Position> 43 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R44.htm </HtmlFileName>
<LongName> 044 - Disclosure - Earnings Per Share (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/EarningsPerShareDetails </Role>
<ShortName> Earnings Per Share (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/EarningsPerShareTables </ParentRole>
<Position> 44 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R45.htm </HtmlFileName>
<LongName> 045 - Disclosure - Earnings Per Share (Details 1) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/EarningsPerShareDetails1 </Role>
<ShortName> Earnings Per Share (Details 1) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/EarningsPerShareTables </ParentRole>
<Position> 45 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R46.htm </HtmlFileName>
<LongName> 046 - Disclosure - Revolving Credit Loan Payable (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/RevolvingCreditLoanPayableDetails </Role>
<ShortName> Revolving Credit Loan Payable (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/RevolvingCreditLoanPayable </ParentRole>
<Position> 46 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R47.htm </HtmlFileName>
<LongName> 047 - Disclosure - Accrued Severance Expense (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/AccruedSeveranceExpenseDetails </Role>
<ShortName> Accrued Severance Expense (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/AccruedSeveranceExpense </ParentRole>
<Position> 47 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R48.htm </HtmlFileName>
<LongName> 048 - Disclosure - Accumulated Other Comprehensive Loss (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/AccumulatedOtherComprehensiveLossDetails </Role>
<ShortName> Accumulated Other Comprehensive Loss (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/AccumulatedOtherComprehensiveLosstables </ParentRole>
<Position> 48 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R49.htm </HtmlFileName>
<LongName> 049 - Disclosure - Business Segment Information (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/BusinessSegmentInformationDetails </Role>
<ShortName> Business Segment Information (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/BusinessSegmentInformationTables </ParentRole>
<Position> 49 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R50.htm </HtmlFileName>
<LongName> 050 - Disclosure - Business Segment Information (Details Textual) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/BusinessSegmentInformationDetailsTextual </Role>
<ShortName> Business Segment Information (Details Textual) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/BusinessSegmentInformationTables </ParentRole>
<Position> 50 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R51.htm </HtmlFileName>
<LongName> 051 - Disclosure - Commitments and Contingencies (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/CommitmentsAndContingenciesDetails </Role>
<ShortName> Commitments and Contingencies (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/CommitmentsAndContingenciesTables </ParentRole>
<Position> 51 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R52.htm </HtmlFileName>
<LongName> 052 - Disclosure - Commitments and Contingencies (Details Textual) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/CommitmentsAndContingenciesDetailsTextual </Role>
<ShortName> Commitments and Contingencies (Details Textual) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/CommitmentsAndContingenciesTables </ParentRole>
<Position> 52 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R53.htm </HtmlFileName>
<LongName> 053 - Disclosure - Other (Expense) Income, Net (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/OtherExpenseIncomeNetDetails </Role>
<ShortName> Other (Expense) Income, Net (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/OtherExpenseIncomeNetTables </ParentRole>
<Position> 53 </Position>
</Report>
<Report instance="idt-20170131.xml">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R54.htm </HtmlFileName>
<LongName> 054 - Disclosure - Income Taxes (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.idt.net/role/IncomeTaxesDetails </Role>
<ShortName> Income Taxes (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.idt.net/role/IncomeTaxes </ParentRole>
<Position> 54 </Position>
</Report>
<Report>
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<LongName> All Reports </LongName>
<ReportType> Book </ReportType>
<ShortName> All Reports </ShortName>
</Report>
</MyReports>
<InputFiles>
<File> idt-20170131.xml </File>
<File> idt-20170131.xsd </File>
<File> idt-20170131_cal.xml </File>
<File> idt-20170131_def.xml </File>
<File> idt-20170131_lab.xml </File>
<File> idt-20170131_pre.xml </File>
</InputFiles>
<SupplementalFiles/>
<BaseTaxonomies/>
<HasPresentationLinkbase> true </HasPresentationLinkbase>
<HasCalculationLinkbase> true </HasCalculationLinkbase>
</FilingSummary>

Top
Filing Submission 0001213900-17-002245   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
AboutPrivacyRedactionsHelp — Tue., Apr. 30, 7:04:14.1am ET