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Note 4 - Inventories (Tables)
3 Months Ended
May 27, 2018
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   
May 27,
   
February 25,
 
   
2018
   
2018
 
                 
Inventories:
 
 
 
 
 
 
 
 
                 
Raw materials
  $
6,940
    $
6,826
 
Work-in-process
   
2,642
     
2,005
 
Finished goods
   
2,931
     
2,173
 
Manufacturing supplies
   
126
     
152
 
   
$
12,639
   
$
11,156