XML 73 R63.htm IDEA: XBRL DOCUMENT v3.23.1
Schedule of Carrying Value of Equity Investments (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Apr. 30, 2023
Apr. 30, 2022
Apr. 30, 2023
Apr. 30, 2022
Investments, Debt and Equity Securities [Abstract]        
Balance, beginning of period $ 1,494 $ 2,539 $ 1,401 $ 2,743
Adjustment for observable transactions involving a similar investment from the same issuer 13 (130) 106 (334)
Impairments
Balance, end of the period $ 1,507 $ 2,409 $ 1,507 $ 2,409