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Inventories
6 Months Ended
Jun. 30, 2012
Inventories [Abstract]  
Inventories

Note 4. Inventories

The components of inventories were as follows:

 

                 
    June 30,
2012
    December 31,
2011
 
    (in thousands)  

Raw materials

  $ 19,071     $ 18,297  

Work in process

    29,919       17,528  
   

 

 

   

 

 

 

Inventories

  $ 48,990     $ 35,825