Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Summary of Property, plant and equipment
Total	$ 160	$ 1,049
Less: accumulated depreciation and amortization	(133)	(877)
Total Property and Equipment, Net	27	172
Computer and office equipment [Member]
Summary of Property, plant and equipment
Total	39	868
Furniture and fixtures [Member]
Summary of Property, plant and equipment
Total	109	169
Software [Member]
Summary of Property, plant and equipment
Total	$ 12	$ 12