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Inventories (Tables)
 6 Months Ended
Jun. 30, 2012
Major Components of Inventories
The following table details the major components of inventories (in thousands):
 
   
June 30,
    
December 31,
  
   
2012
    
2011
  
Raw materials
   $ 9,726     $ 9,074  
Work in process
     6,079       4,843  
Finished goods
     9,094       10,665  
Total inventories
   $ 24,899     $ 24,582