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Inventories (Tables)
 12 Months Ended
Dec. 31, 2013
Inventories

Inventories consist of the following:

 

     As of
December 31, 2013		     As of
December 31, 2012		  

Raw materials

    $ 23,692      $ 28,146   

Finished goods

      7,176        6,188   

Sales demonstration inventory

      19,545        18,729   

Reserve for excess and obsolete

      (1,473 )      (4,169 ) 
  

 

 

    

 

 

  

Inventory

    $ 48,940      $ 48,894   
  

 

 

    

 

 

  

Service inventory

    $ 19,033      $ 19,125