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Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Accounting Policies [Abstract]    
Raw materials $ 995 $ 1,035
Work in progress 16
Finished goods 128 149
Total inventory 1,139 1,184
Less: reserve for obsolete (4) (4)
Total net inventory $ 1,135 $ 1,180