Schedule of Unrealized (losses) Gains for All Equity Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Net (losses) gains recognized during the period on equity investments	$ (2,613)	$ (19,248)	$ 8,830
Less: net gains recognized during the period on equity investments sold during the period	18	10	1,090
Unrealized (losses) gains recognized during the period on equity investments still held at the reporting date	(2,631)	(19,258)	7,740
Rafael Class B Common Stock [Member]
Unrealized (losses) gains recognized during the period on equity investments still held at the reporting date	(7)	(14,101)	8,291
Zedge Class B Common Stock [Member]
Unrealized (losses) gains recognized during the period on equity investments still held at the reporting date	$ (28)	$ (533)	$ 591