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Note 5 - Inventories (Tables)
12 Months Ended
Jul. 31, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
       
  

July 31, 2022

  

July 31, 2021

 

Material and supplies

 $232  $33 

Uranium concentrates from production

  178   178 

Purchased uranium inventories

  66,160   28,961 
  $66,570  $29,172 
Contractual Obligation, Fiscal Year Maturity [Table Text Block]
  

Purchase Commitments

in Pounds

  

Total Purchase Price

 

Fiscal 2023

  1,721,000  $65,309 

Fiscal 2024

  895,000   38,913 

Fiscal 2025

  600,000   23,120 

Fiscal 2026

  100,000   3,620 

Total

  3,316,000  $130,962