(1) Summary of Significant Accounting Policies (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Accounting Policies [Abstract]
Stock-based compensation	$ 539	$ 377	$ 1,437	$ 1,496
Unrecognized stock-based compensation costs	3,700		$ 3,700
Weighted-average period for unrecognized costs			2 years 4 months 24 days
Intrinsic value options outstanding	5,500		$ 5,500
Intrinsic value of options exercisable	$ 4,100		$ 4,100
Options exercised			269,100	482,500
Intrinsic value of options exercised			$ 308	$ 1,400
Shares available for grant	72,581		72,581