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