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Inventories (Tables)
 12 Months Ended
Dec. 31, 2016
Inventory Disclosure [Abstract]  
Schedule of Inventory, Net of Reserves

Inventories, net of reserves, consisted of the following:

 

    As of December 31,  
    2016     2015  
Current:                
Raw materials   $ 2,291     $ 2,735  
Finished goods     9,086       10,712  
    $ 11,377     $ 13,447  
Long-term:                
Raw materials   $ 599     $ 375  
Finished goods     1,065       1,643  
    $ 1,664     $ 2,018