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INVENTORIES (Tables)
9 Months Ended
Sep. 30, 2012
Inventory Disclosure  
Schedule of Inventory
 
(in thousands)
 
September 30,
 2012
   
December 31, 2011
 
Raw materials and supplies
  $ 19,097     $ 15,892  
Work in process
    6,683       5,691  
Finished goods
    2,616       3,324  
Total inventories
  $ 28,396     $ 24,907