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Inventories (Tables)
 3 Months Ended
Mar. 31, 2013
Inventories

Inventories consisted of the following (in thousands):

 

     March 31,
2013		      December 31,
2012		  

Raw materials

    $ 890       $ 1,044   

Work in process

      4,848         4,963   

Finished goods

      930         883   
  

 

 

     

 

 

  

Total inventories

    $ 6,668       $ 6,890