Note 3 - Acquisition of UEX Corporation - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands				12 Months Ended
	Aug. 19, 2022	Jun. 30, 2022	Jun. 21, 2022	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
UEC shares issued				$ 239,513
Cash and cash equivalents				45,614	$ 32,536	$ 44,313
Mineral rights and properties				565,560	181,948
Equity-accounted investment				48,110	24,177
Investment in equity securities				38,656	14,834	0
Other non-current assets				3,079	3,612
Total assets				737,589	354,247
Asset retirement obligations (Note 14)				18,670	17,276	$ 3,939
Deferred tax liabilities				71,080	536
Total liabilities				$ 105,762	$ 27,338
UEX Acquisition [Member]
UEC shares issued	$ 171,271
Fair value of UEX shares acquired by UEC before acquisition	5,830
Acquisition related costs	2,643
Total consideration	192,673	$ 1,914	$ 3,867
Cash and cash equivalents	4,627
Prepaid expenses and deposits	159
Accounts receivable	892
Mineral rights and properties	208,008
Equity-accounted investment	24,502
Investment in equity securities	135
Other non-current assets	118
Total assets	238,441
Accounts payable and accrued liabilities	7,080
Other liabilities	111
Asset retirement obligations (Note 14)	211
Deferred tax liabilities	38,366
Total liabilities	45,768
Total net assets	192,673
UEX Acquisition [Member] | Replacement Options [Member]
Replacement options/warrants issued	4,026
UEX Acquisition [Member] | Replacement Warrants [Member]
Replacement options/warrants issued	$ 8,903