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Fixed Assets, Net - Schedule of Property and Equipment (Details) (10-K) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Dec. 31, 2018
Property and equipment, gross   $ 11,995 $ 15,169
Accumulated depreciation   (9,173) (10,502)
Property and equipment, net $ 689 2,822 4,667
Site Equipment [Member]      
Property and equipment, gross   8,856 11,566
Machinery and Equipment [Member]      
Property and equipment, gross   1,570 1,887
Furniture and Fixtures [Member]      
Property and equipment, gross   314 461
Leasehold Improvements [Member]      
Property and equipment, gross   1,240 1,240
Vehicles [Member]      
Property and equipment, gross   $ 15 $ 15