Note 1 - Nature of Operations (Details Textual) - USD ($)	2 Months Ended	3 Months Ended
	Dec. 16, 2022	Oct. 31, 2022	Oct. 31, 2021	Jul. 31, 2022
Working Capital		$ 37,287,000
Cash and Cash Equivalents, at Carrying Value, Total		20,965,000	$ 96,304,000	$ 32,536,000
Inventory, Net, Total		29,165,000	66,570,000	$ 66,570,000
Revenues, Total		57,292,000	$ 0
Subsequent Event [Member] | Settlement Agreement [Member] | Anfield Energy, Inc. [Member]
Proceeds from Sale and Collection of Receivables, Total	$ 500,000
Subsequent Event [Member] | The 2021 At-the-market Offerings [Member]
Proceeds from Issuance of Common Stock, Net	13,505,000
Uranium Inventory [Member]
Inventory, Net, Total		28,769,000
Revenues, Total		$ 57,209,000
Uranium Inventory [Member] | Subsequent Event [Member]
Revenues, Total	$ 25,185,000