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INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2013
INVENTORIES  
Schedule of Inventory
                 
December 31,
 
2013
   
2012
 
(in thousands)
           
Raw materials
  $ 15,901     $ 17,205  
Work in process
    7,435       6,597  
Finished goods
    5,523       4,357  
Total inventories
  $ 28,859     $ 28,159