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Inventories (Tables)
9 Months Ended
Sep. 30, 2015
Inventory Disclosure [Abstract]  
Summary of Inventories

Inventories were as follows (in thousands):

 

     September 30, 2015      December 31, 2014  

Raw materials

   $  18,967      $  18,252  

Work-in-process

     2,699        3,339   

Finished goods

     4,593        4,737  
  

 

 

    

 

 

 

Net balance

   $ 26,259      $ 26,328