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Note 14 - Sales and Service Revenue and Cost of Sales and Services (Tables)
6 Months Ended
Jan. 31, 2023
Notes Tables  
Schedule of Revenue and Cost of Revenue [Table Text Block]
   

Three Months Ended January 31,

   

Six Months Ended January 31,

 
   

2023

   

2022

   

2023

   

2022

 

Sales of purchased uranium inventory

  $ 47,836     $ 13,146     $ 105,045     $ 13,146  

Revenue from toll processing services

    95       45       178       45  

Total sales and service revenue

  $ 47,931     $ 13,191     $ 105,223     $ 13,191  
                                 

Cost of purchased uranium inventory

  $ (33,282 )   $ (9,211 )   $ (76,647 )   $ (9,211 )

Cost of toll processing services

    (79 )     (37 )     (148 )     (37 )

Total cost of sales and services

  $ (33,361 )   $ (9,248 )   $ (76,795 )   $ (9,248 )