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Schedule of Equity Investments (Details) - USD ($) $ in Thousands | Oct. 31, 2022 | Jul. 31, 2022
--- | --- | ---
Current equity investments | $ 9,369 | $ 17,091
Noncurrent equity investments | 6,916 | 7,426
Other Marketable Equity Securities [Member] |  |
Current equity investments | 2,679 | 4,089
Mutual Fund [Member] |  |
Current equity investments | 6,086 | 12,299
Hedge Funds [Member] |  |
Noncurrent equity investments | 3,137 | 3,238
Other Investments [Member] |  |
Noncurrent equity investments | 2,325 | 825
Common Class B [Member] | Zedge Inc [Member] |  |
Current equity investments | 90 | 117
Common Class B [Member] | Rafael Holdings Inc. [Member] |  |
Current equity investments | 514 | 586
Series C Convertible Preferred Stock [Member] | Visa Inc [Member] |  |
Noncurrent equity investments | 1,105 | 1,132
Series A Convertible Preferred Stock [Member] | Visa Inc [Member] |  |
Noncurrent equity investments |  | 1,230
Series B and Series C Convertible Preferred Stock [Member] |  |
Noncurrent equity investments | $ 349 | $ 1,001

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