Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 9,590	$ 9,439
Accumulated depreciation and amortization	(8,274)	(8,711)
Property and equipment, net	$ 1,316	728
Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	10 years
Network equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 6,081	6,858
Network equipment and software | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Network equipment and software | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	5 years
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 3,100	2,354
Computer equipment and software | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Computer equipment and software | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	5 years
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 297	164
Office furniture and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	5 years
Office furniture and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	10 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, Gross	$ 112	$ 63
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	5 years