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Inventories (Tables)
 12 Months Ended
Dec. 31, 2015
Inventories

Inventories consist of the following:

 

     As of
December 31, 2015		      As of
December 31, 2014		  

Raw materials

    $ 28,190       $ 27,266   

Finished goods

      17,381         15,828   
  

 

 

     

 

 

  

Inventories, net

    $ 45,571       $ 43,094   
  

 

 

     

 

 

  

Service and sales demonstration inventory, net

    $ 33,709       $ 36,886