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Note 4 - Inventories (Tables)
 9 Months Ended
Nov. 27, 2016
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
 
  
November 27,
    
February 28,
  
 
  
2016
    
2016
  
                 
Inventories:
 
 
 
 
 
 
 
 
                 
Raw materials
   $
6,822
    $
5,462
 
Work-in-process
    
2,341
     
2,215
 
Finished goods
    
3,048
     
2,172
 
Manufacturing supplies
    
376
     
365
 
 
 
$
12,587
 
 
$
10,214