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Summary of Significant Accounting Policies (Details 4) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Accounting Policies [Abstract]    
Balance at beginning of period $ 24 $ 17
Provisions for warranty issued 13 7
Balance at end of period $ 37 $ 24