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Note 5 - Inventories - Costs of Inventories (Details) - USD ($)
$ in Thousands
Jan. 31, 2023
Jul. 31, 2022
Material and supplies $ 220 $ 231
Total 21,037 66,570
Uranium Inventory [Member]    
Uranium concentrates from production 178 178
Purchased uranium inventories 20,639 $ 66,161
Total $ 20,639