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Note 5 - Inventories (Tables)
6 Months Ended
Jan. 31, 2023
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

January 31, 2023

   

July 31, 2022

 

Material and supplies

  $ 220     $ 231  

Uranium concentrates from production

    178       178  

Purchased uranium inventories

    20,639       66,161  
Total   $ 21,037     $ 66,570  
Contractual Obligation, Fiscal Year Maturity [Table Text Block]
   

Purchase Commitments

in Pounds

   

Total Purchase

Price

 

Fiscal 2023

    700,000     $ 22,595  

Fiscal 2024

    995,000       45,777  

Fiscal 2025

    600,000       23,120  

Fiscal 2026

    100,000       3,620  

Total

    2,395,000     $ 95,112