Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Schedule of Inventories (Details)

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Summary of Significant Accounting Policies - Schedule of Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Inventory Disclosure [Abstract]    
Raw materials and work-in-progress $ 24,980 $ 16,324
Finished goods 2,756 2,917
Less: reserves (665) (399)
Inventories $ 27,071 $ 18,842