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Inventories - Schedule of Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Raw materials $ 5,936 $ 5,243
Work in progress 10,621 8,292
Finished products 8,085 12,014
Total $ 24,642 $ 25,549