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Schedule of Equity Investments (Details) - USD ($) $ in Thousands | Jul. 31, 2023 | Jul. 31, 2022
--- | --- | ---
Current equity investments | $ 6,198 | $ 17,091
Noncurrent equity investments | 9,874 | 7,426
Other Marketable Equity Securities [Member] |  |
Current equity investments | 1,497 | 4,089
Mutual Fund [Member] |  |
Current equity investments | 4,054 | 12,299
Convertible Preferred Stock [Member] |  |
Noncurrent equity investments | 2,784 | 1,001
Hedge Funds [Member] |  |
Noncurrent equity investments | 3,002 | 3,238
Other Investments [Member] |  |
Noncurrent equity investments | 2,825 | 825
Common Class B [Member] | Zedge Inc [Member] |  |
Current equity investments | 89 | 117
Common Class B [Member] | Rafael Holdings Inc. [Member] |  |
Current equity investments | 558 | 586
Series C Convertible Preferred Stock [Member] | Visa Inc. [Member] |  |
Noncurrent equity investments | 1,263 | 1,132
Series A Convertible Preferred Stock [Member] | Visa Inc. [Member] |  |
Noncurrent equity investments |  | $ 1,230

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