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INVENTORIES (Tables)
6 Months Ended
Jun. 27, 2015
INVENTORIES [Abstract]  
Schedule of Inventories

June 27,
2015

December 31,
2014

Inventory at FIFO

   

Finished products

  $ 16,564   $ 20,083

Materials and work in process

  61,359   68,934

Gross inventories

  77,923   89,017

Less:  LIFO reserve

  (41,614 )   (40,578 )

Less: excess and obsolescence reserve  

  (2,120 )   (3,750 )

Net inventories

  $ 34,189   $ 44,689