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Fixed Assets, Net - Schedule of Property and Equipment (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Property and equipment, gross $ 9,253 $ 11,995
Accumulated depreciation (8,751) (9,173)
Property and equipment, net 502 2,822
Site Equipment [Member]    
Property and equipment, gross 7,830 8,856
Machinery and Equipment [Member]    
Property and equipment, gross 1,423 1,570
Furniture and Fixtures [Member]    
Property and equipment, gross 314
Leasehold Improvements [Member]    
Property and equipment, gross 1,240
Vehicles [Member]    
Property and equipment, gross $ 15