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Note 4 - Inventories (Tables)
9 Months Ended
Nov. 29, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
November 29,
   
March 1,
 
   
2020
   
2020
 
                 
Inventories:
 
 
 
 
 
 
 
 
Raw materials   $
3,175
    $
5,319
 
Work-in-process
   
150
     
254
 
Finished goods
   
1,387
     
806
 
   
$
4,712
   
$
6,379