Note 3 - Acquisition of UEX Corporation - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands			2 Months Ended	3 Months Ended
	Aug. 19, 2022	Jun. 13, 2022	Jul. 31, 2022	Oct. 31, 2022	Oct. 31, 2021	Jul. 31, 2021
UEC share issued				$ 235,372
Cash & cash equivalents			$ 32,536	20,965	$ 96,304
Mineral rights and properties			181,948	558,366
Equity accounted investment			24,177	46,073
Investment in equity securities			14,834	5,666
Other non-current assets			3,612	3,120
Total assets			354,247	695,487
Asset retirement obligations			17,276	18,139		$ 3,939
Deferred tax liabilities			0	11,528
Total liabilities			27,338	$ 114,048
UEX Acquisition [Member]
UEC share issued	$ 171,271
Fair value UEX shares acquired by UEC before acquisition	5,830
Acquisition related costs	2,643
Total consideration paid	192,673	$ 3,867	$ 1,914
Cash & 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	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