Note 3 - Acquisition of UEX Corporation - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands			1 Months Ended	3 Months Ended
	Aug. 19, 2022	Jun. 21, 2022	Jul. 31, 2022	Oct. 31, 2022	Jan. 31, 2023
UEC shares issued				$ 235,372
Cash and cash equivalents			$ 32,536		$ 32,613
Mineral rights and properties			181,948		562,850
Equity accounted investment			24,177		47,582
Investment in equity securities			14,834		35,121
Other non-current assets			3,612		2,943
Total assets			354,247		733,315
Asset retirement obligations			17,276		18,392
Deferred tax liabilities			536		69,226
Total liabilities			27,338		$ 108,647
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	$ 3,867	$ 1,914
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	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