Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income tax credit at statutory rates	$ (631)	$ (437)
Nondeductible expenses	3	4
State income tax, net of federal benefits	(226)	(156)
Expiration of NOL & Credits	1,530	1,559
Tax basis in excess of book Convertible Debt	342	0
Expiration of Stock Options	125	179
Other	0	0
Change in valuation allowance	(1,143)	$ (1,149)
Total