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Note 4 - Inventories (Tables)
6 Months Ended
Jun. 26, 2016
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
 
 
June 26,
 
 
December 31,
 
 
 
2016
 
 
2015
 
Raw Materials
  $ 13,922     $ 11,602  
Work In Process
    1,880       1,560  
Finished Goods
    10,751       10,652  
Total
  $ 26,553     $ 23,814