Schedule of Carrying Value of Equity Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Cash and Cash Equivalents [Abstract]
Balance, beginning of period	$ 1,501	$ 2,743	$ 4,109
Redemption for Visa mandatory release assessment		(1,230)	(1,870)
Purchase		100
Adjustment for observable transactions involving a similar investment from the same issuer	131	(103)	510
Redemptions		(9)	(6)
Impairments
BALANCE, END OF PERIOD	$ 1,632	$ 1,501	$ 2,743