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Inventories
12 Months Ended
Dec. 31, 2013
Inventories  
Inventories

4. Inventories

Inventories consist of the following, in thousands:

 
  December 31,
2013
  December 31,
2012
 

Raw materials

  $ 3,897   $ 1,152  

Work in process

    1,347      

Finished goods

    1,908      
           

Total

  $ 7,152   $ 1,152