XML 68 R58.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Schedule of Equity Investments (Details) (Parenthetical) - Common Class B [Member] - shares | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2022 | Jul. 31, 2022
Zedge Inc [Member] |  |
Number of related party shares received | 42,282 | 42,282
Rafael Holdings Inc. [Member] |  |
Number of related party shares received | 290,214 | 290,214

X
- Definition Number of related party shares received. + References No definition available. + Details
Name: | IDT_NumberOfRelatedPartySharesReceived
Namespace Prefix: | IDT_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=IDT_ZedgeIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=IDT_RafaelHoldingsIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |