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Note 4 - Inventories (Tables)
6 Months Ended
Jul. 02, 2017
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
 
 
July 2
,
 
 
December 31,
 
 
 
201
7
 
 
201
6
 
Raw materials
  $
13,806
    $
14,482
 
Work in process
   
1,695
     
986
 
Finished goods
   
8,989
     
7,988
 
Total
  $
24,490
    $
23,456