Income Taxes (Details - Income Tax Reconciliation) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of income tax benefit to statutory rate:
Income benefit at statutory rate	$ (3,409)	$ (3,948)
State income taxes (benefit), net of federal income tax benefit	(107)	(331)
Permanent differences	89	(206)
Change in valuation allowance	(5,899)	2,458
Expiring federal net operating losses	9,745	0
Other	(419)	2,027
Income tax provision	$ 0	$ 0