Income Taxes (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Net operating loss carryforwards	$ 49,200
State and Local NOL carryforwards	63,000
Estimated research and development tax credit carryforwards	$ 396	$ 396
Operating loss carry forward expiration, description	statutory expiration dates commencing in 2035
Expire in 2035 [Member]
Net operating loss carryforwards	$ 13,800
Federal [Member]
Net operating loss carryforwards	$ 63,000
State [Member]
Net operating loss carryforwards		$ 40,000