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Inventory, Net (Tables)
3 Months Ended
Mar. 31, 2016
Inventory Disclosure [Abstract]  
Schedule of Inventory, net

The composition of inventory is as follows:

 

    As of
December 31, 2015
    As of
March 31, 2016
 
Raw materials   $ 287     $ 362  
Work-in-process     189       189  
Finished goods     30       51  
    $ 506     $ 602