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Summary of Significant Accounting Policies and Estimates - Schedule of Unamortized Installation Cost and Sales Commissions (Details) (10-K) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Balance, beginning $ 274 $ 424
Incremental costs deferred 143 513
Deferred costs recognized (332) (663)
Balance, ending   274
Installation Costs [Member]    
Balance, beginning 187 321
Incremental costs deferred   352
Deferred costs recognized   (486)
Balance, ending   187
Sales Commissions [Member]    
Balance, beginning $ 87 103
Incremental costs deferred   161
Deferred costs recognized   (177)
Balance, ending   $ 87