Schedule of Equity Investments (Details) - USD ($) $ in Thousands	Apr. 30, 2024	Jul. 31, 2023
Current equity investments	$ 4,844	$ 6,198
Noncurrent equity investments	6,630	9,874
Other Marketable Equity Securities [Member]
Current equity investments	169	1,497
Mutual Fund [Member]
Current equity investments	4,130	4,054
Convertible Preferred Stock [Member]
Noncurrent equity investments	1,565	2,784
Hedge Funds [Member]
Noncurrent equity investments	2,915	3,002
Other Investments [Member]
Noncurrent equity investments	725	2,825
Common Class B [Member] | Zedge Inc [Member]
Current equity investments	102	89
Common Class B [Member] | Rafael Holdings Inc [Member]
Current equity investments	443	558
Series C Convertible Preferred Stock [Member] | Visa Inc. [Member]
Noncurrent equity investments	$ 1,425	$ 1,263