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Inventories
9 Months Ended
Sep. 30, 2012
Inventories [Abstract]  
Inventories

Note 4. Inventories

The components of inventories were as follows:

 

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

Raw materials

  $ 17,724     $ 18,297  

Work in process

    20,365       17,528  
   

 

 

   

 

 

 

Inventories

  $ 38,089     $ 35,825