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INVENTORIES (Tables)
6 Months Ended
Jul. 02, 2016
Inventory Disclosure [Abstract]  
Schedule of Inventories

   July 2, 2016   December 31, 2015 
Inventory at FIFO          
Finished products  $15,795   $16,637 
Materials and work in process   68,818    64,641 
Gross inventories   84,613    81,278 
Less:  LIFO reserve   (43,260)   (42,061)
Less:  excess and obsolescence reserve   (2,570)   (2,118)
Net inventories  $38,783   $37,099