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Schedule of Equity Investments (Details) - USD ($) $ in Thousands | Oct. 31, 2023 | Jul. 31, 2023
--- | --- | ---
Current equity investments | $ 4,761 | $ 6,198
Noncurrent equity investments | 8,150 | 9,874
Other Marketable Equity Securities [Member] |  |
Current equity investments | 281 | 1,497
Mutual Fund [Member] |  |
Current equity investments | 3,903 | 4,054
Convertible Preferred Stock [Member] |  |
Noncurrent equity investments | 2,444 | 2,784
Hedge Funds [Member] |  |
Noncurrent equity investments | 3,002 | 3,002
Other Investments [Member] |  |
Noncurrent equity investments | 1,455 | 2,825
Common Class B [Member] | Zedge Inc [Member] |  |
Current equity investments | 81 | 89
Common Class B [Member] | Rafael Holdings Inc [Member] |  |
Current equity investments | 496 | 558
Series C Convertible Preferred Stock [Member] | Visa Inc [Member] |  |
Noncurrent equity investments | $ 1,249 | $ 1,263

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