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Note 4 - Inventories (Tables)
 6 Months Ended
Aug. 28, 2016
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
 
  
August 28,
    
February 28,
  
 
  
2016
    
2016
  
                 
Inventories:
 
 
 
 
 
 
 
 
                 
Raw materials
   $ 6,844     $ 5,462  
Work-in-process
     2,169       2,215  
Finished goods
     2,455       2,172  
Manufacturing supplies
     281       365  
 
 
$
11,749
 
 
$
10,214