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Inventories
6 Months Ended
Jun. 30, 2011
Inventories [Abstract]  
INVENTORIES
5. INVENTORIES
    Inventories consist of the following (in thousands):
                 
    June 30,     December 31,  
    2011     2010  
Finished goods
  $ 13,280     $ 14,304  
Work in process
    23,090       20,907  
Raw materials
    1,913       1,498  
 
           
Total inventories
  $ 38,283     $ 36,709