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Inventory, net
6 Months Ended
Jun. 30, 2012
Inventory, net [Abstract]  
Inventory, net
3. Inventory, net (in thousands)

 

                 
    June 30,     December 31,  
    2012     2011  

Raw materials

  $ 4,243     $ 5,260  

Work in process

    8,197       7,338  

Finished goods

    2,574       3,653  
   

 

 

   

 

 

 
    $ 15,014     $ 16,251