Defined Contribution Retirement Plan (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Defined Contribution Retirement Plan
Defined contribution plan, maximum annual contributions employee, percent	100.00%
Defined contribution plan, employer matching contribution, percent of match	100.00%
Defined contribution plan, employer matching contribution, percent of employees' gross pay	3.00%
Defined contribution retirement plan, expenses	$ 120	$ 300