XML 77 R66.htm IDEA: XBRL DOCUMENT
v3.25.1

Schedule of Equity Investments (Details) (Parenthetical) - Common Class B [Member] - shares |  | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 29, 2025 | Apr. 30, 2025 | Jul. 31, 2024
Rafael Holdings Inc [Member] |  |  |
Number of related party shares received | 168,122 | 278,810 | 278,810
Zedge Inc [Member] |  |  |
Number of related party shares received |  | 42,282 | 42,282

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: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=IDT_RafaelHoldingsIncMember
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: |