Note 7 - Income Taxes - Components of Income Tax Expense (Benefit) from Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Federal	$ 8,640	$ 7,096	$ 15,038	$ 12,212
State	1,796	1,658	3,164	2,856
Total current income tax expense	10,436	8,754	18,202	15,068
Federal	(1,248)	(857)	(792)	(270)
State	(266)	(227)	(138)	(60)
Total deferred income tax expense	(1,514)	(1,084)	(930)	(330)
Change in valuation allowance	0	0	0	0
Total income tax expense	$ 8,922	$ 7,670	$ 17,272	$ 14,738