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Note 4 - Inventories (Tables)
9 Months Ended
Nov. 27, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

November 27,

   

February 27,

 
   

2022

   

2022

 
                 
Inventories:                

Raw materials

  $ 5,935     $ 4,026  

Work-in-process

    504       253  

Finished goods

    377       378  
    $ 6,816     $ 4,657