10. Income taxes (Details - Provision) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal	$ 398	$ (27)
State and local	357	276
Total current	755	249
Deferred	841	533
Provision (benefit) for income taxes	$ 1,596	$ 782