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Inventories
3 Months Ended
Mar. 31, 2012
Inventories [Abstract]  
Inventories
4. Inventories

The components of inventories are as follows:

 

     March 31,
2012
     December 31,
2011
 

Raw materials

   $ 366       $ 388   

Work in process

     80         75   

Finished goods, net

     46,658         44,232   
  

 

 

    

 

 

 

Total

   $ 47,104       $ 44,695