Note 5 - Inventories - Costs of Inventories (Details) - USD ($) $ in Thousands	Oct. 31, 2022	Jul. 31, 2022	Oct. 31, 2021
Material and supplies	$ 218		$ 231
Inventory, Net, Total	29,165	$ 66,570	66,570
Uranium Inventory [Member]
Uranium concentrates from production	178		178
Purchased uranium inventories	28,769		$ 66,161
Inventory, Net, Total	$ 28,769

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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