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Inventories - Schedule of Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Classification of Inventories [Abstract]    
Raw materials $ 2,176 $ 2,134
Work in process 2,905 2,640
Finished goods 905 1,242
Total Inventories, net $ 5,986 $ 6,016