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Inventory, Net - Schedule of Inventory, Net (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Inventory Disclosure [Abstract]    
Finished goods $ 1,849 $ 1,633
Raw materials 354 280
Less: inventory reserve (75) (49)
Total inventory, net $ 2,128 $ 1,864