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Inventory
3 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
Inventory
7. Inventory

Inventory consisted of the following as of the date indicated (in thousands):

 

     March 31,
2015
     December 31,
2014
 

Raw materials

   $ 2,260       $ 1,299   

Work in process

     2,509         2,157   

Finished goods

     3,118         1,988   
  

 

 

    

 

 

 
$ 7,887    $ 5,444