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Inventories
6 Months Ended
Jun. 30, 2015
Inventories

2. Inventories

Inventories consist of the following (in thousands):

 

     June 30,
2015
     December 31,
2014
 

Raw materials

   $ 16,038       $ 4,856   

Work-in-process

     3,757         4,719   

Finished goods

     21         95   
  

 

 

    

 

 

 

Total inventories

   $ 19,816       $ 9,670