Income Taxes (Details - Tax rate effect) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Expense at federal tax rate	$ 12,830	$ 24,401	$ 13,807
State taxes, net of federal income tax effect	3,716	6,462	3,974
Stock-based compensation	(1,184)	(2,611)	(947)
Non-deductible expenses	1,629	1,056	1,129
Net operating loss carryback	0	0	(1,694)
Effect of change in tax rate	0	0	0
Accounting method change	0	0	0
Other	(1,237)	902	1,953
Income tax expense	$ 15,754	$ 30,210	$ 18,222