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Note 4 - Inventories (Tables)
3 Months Ended
May 31, 2024
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

May 31,

   

February 29,

 
   

2024

   

2024

 
                 

Raw materials

  $ 1,005     $ 1,317  

Work-in-process

    621       628  

Finished goods

    621       621  
    $ 2,247     $ 2,566