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Note 1 - Nature of Operations (Details Textual) - USD ($)
Oct. 27, 2021
Jul. 31, 2021
Jul. 31, 2020
Working Capital   $ 61,800,000  
Cash and Cash Equivalents, at Carrying Value, Ending Balance   44,312,780 $ 5,147,703
Inventory, Net, Total   29,172,480 $ 211,662
Long-Term Debt, Maturity, Year One   10,000,000  
Uranium Inventory [Member]      
Purchase Obligation, to be Paid, Year One   $ 18,065,000  
Subsequent Event [Member] | Uranium Inventory [Member]      
Purchase Obligation, to be Paid, Year One $ 22,000,000    
At-the-market Offering [Member] | Subsequent Event [Member]      
Proceeds from Issuance or Sale of Equity, Total $ 62,700,000