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Inventory
6 Months Ended
Jun. 30, 2012
Inventory
4. Inventory

 

     Inventory consists of the following:

 

    June 30,
2012
    December 31,
2011
 
    (in thousands)  
             
Inventory                
                 
Raw materials   $ 888     $ 1,016  
Finished goods     2,047       2,575  
                 
Total inventory, net   $ 2,935     $ 3,591