Property and Equipment Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,625	$ 3,116
Less accumulated depreciation and amortization	(1,376)	(2,520)
Total property, plant & equipment, net	249	596
Computer, network equipment and furniture
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,602	2,381
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 23	$ 735