Note 15 - Derivative Liabilities - Movement in Derivative Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023
Balance, beginning of year	$ 4,313	$ 0
Derivative liabilities assumed from UEX Acquisition (Note 3)	0	8,903
Exercise of Replacement Warrants	(9,509)	(1,297)
Change in fair value	8,226	(3,293)
Balance	3,030	4,313
Current derivative liabilities	(3,030)	0
Non-current derivative liabilities	$ 0	$ 4,313