Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 398	$ 340
Accumulated depreciation	(242)	(230)
Property and equipment, net	156	110
Furniture, fixtures and office equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	144	95
Software and technology assets [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 254	$ 245