Note 7 - Income Taxes - Components of Income Tax Expense (Benefit) from Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Federal	$ 8,086	$ 3,393	$ 13,280	$ 3,607
State	1,687	614	2,364	614
Total current income tax expense	9,773	4,007	15,644	4,221
Federal	(1,641)	2,622	(224)	3,464
State	(157)	918	687	1,307
Total deferred income tax expense	(1,798)	3,540	463	4,771
Change in valuation allowance	0	0	0	0
Total income tax expense	$ 7,975	$ 7,547	$ 16,107	$ 8,992