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Note 4 - Inventories (Tables)
6 Months Ended
Sep. 01, 2019
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
September 1,
   
March 3,
 
   
2019
   
2019
 
                 
Inventories:
 
 
 
 
 
 
 
 
Raw materials
  $
3,486
    $
4,556
 
Work-in-process
   
712
     
232
 
Finished goods
   
428
     
479
 
   
$
4,626
   
$
5,267