Note 12 - Investments in Equity Securities (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Jul. 31, 2024	Jul. 31, 2023	Aug. 19, 2022	Jul. 31, 2022
Equity Securities, FV-NI	$ 75,264	$ 38,656		$ 14,834
Equity Securities, FV-NI, Unrealized Gain	$ 13,900
UEX Shares [Member]
Equity Securities, FV-NI			$ 5,830	$ 6,914

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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+ Details