Property and Equipment (Details) - Schedule of property and equipment - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 1,967	$ 1,956
Less accumulated depreciation and amortization	(1,925)	(1,893)
Total	42	63
Laboratory and manufacturing equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	591	591
Computer equipment and software [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	1,193	1,182
Office furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 183	$ 183