Composition of Certain Balance Sheet Items - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and Equipment		$ 1,280
Proper and equipment and finance lease right-of-use asset, before accumulated depreciation and amortization	$ 2,378
Less accumulated depreciation	(1,328)
Less accumulated depreciation		625
Property and Equipment, Net	1,050
Property and Equipment, Net	1,050	655
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property and Equipment	304
Software
Property, Plant and Equipment [Line Items]
Property and Equipment	1,541
Leasehold improvements
Property, Plant and Equipment [Line Items]
Leasehold improvements	$ 533
Furniture and equipment
Property, Plant and Equipment [Line Items]
Property and Equipment		361
Software
Property, Plant and Equipment [Line Items]
Property and Equipment		884
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and Equipment		$ 35