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Schedule of Carrying Value of Equity Investments (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jul. 31, 2024
Jul. 31, 2023
Jul. 31, 2022
Cash and Cash Equivalents [Abstract]      
Balance, beginning of period $ 1,632 $ 1,501 $ 2,743
Upward adjustment 130
Redemption for Visa Series C Preferred mandatory release assessment (877) (1,230)
Purchase 100
Adjustment for observable transactions involving a similar investment from the same issuer 309 131 (103)
Redemptions (230) (9)
Impairments
BALANCE, END OF PERIOD $ 964 $ 1,632 $ 1,501