Income Taxes (FASB ASC 740 Income Taxes) - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Net operating losses	$ 39,866	$ 38,005
Amortization & depreciation	131	138
Accrued expenses	100	51
Stock compensation	191	120
Total deferred tax assets	40,288	38,314
Research and development costs	(127)	(189)
Deferred tax assets, net	40,161	38,125
Less: Valuation allowance	(40,161)	(38,125)
Deferred tax assets, net