Note 4 - Inventories - Costs of Inventories (Details) - USD ($)	Apr. 30, 2021	Jul. 31, 2020
Supplies and work-in-progress	$ 33,781	$ 33,781
Inventory, Net, Total	26,405,480	211,662
Uranium Inventory [Member]
Uranium concentrates from production	177,881	177,881
Purchased uranium inventories	26,193,818
Inventory, Net, Total	$ 26,200,000

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed and products used directly or indirectly in the manufacturing or production process, which may or may not become part of the final product. .

No definition available.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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Gross amount of components used by the entity which are bought from another entity rather than produced by the entity.

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