Note 8 - Income Taxes - Components of Income Tax Expense (Benefit) from Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Federal	$ 9,231	$ 4,730	$ 12,838	$ 8,202
State	1,261	642	1,875	1,188
Total current income tax expense	10,492	5,372	14,713	9,390
Federal	(1,922)	858	1,542	2,375
State	454	672	1,761	1,462
Total deferred income tax expense (benefit)	(1,468)	1,530	3,303	3,837
Change in valuation allowance	0	0	0	0
Total income tax expense	$ 9,024	$ 6,902	$ 18,016	$ 13,227