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Schedule of Assets Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jul. 31, 2023 | Jul. 31, 2022 | Jul. 31, 2021
Fair Value Disclosures [Abstract] |  |  |
Balance, beginning of period | $ 1,132 | $ 2,465 | $ 3,825
Purchase of Rafael Holdings, Inc. warrant |  |  | 354
Exercise of Rafael Holdings, Inc. warrant |  |  | (380)
Redemption for Visa mandatory release assessment |  | (1,230) | (1,870)
Total gains (losses) included in “Other (expense) income, net” | $ 131 | $ (103) | $ 536
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other (expense) income, net | Other (expense) income, net | Other (expense) income, net
BALANCE, END OF PERIOD | $ 1,263 | $ 1,132 | $ 2,465
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the period |  |  |

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- Definition Exercise of rafael holdings inc warrant. + References No definition available. + Details
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- Definition Purchase of Rafael Holdings Inc warrant. + References No definition available. + Details
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- Definition Redemption for Visa mandatory release assessment + References No definition available. + Details
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- Definition Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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- Definition Indicates line item in statement in which net income is reported that includes gain (loss) from asset measured at fair value using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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