Note 7 - Income Taxes - Components of Income Tax Expense (Benefit) from Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Federal	$ 6,398	$ 5,116
State	1,368	1,198
Total current income tax expense	7,766	6,314
Federal	456	587
State	128	167
Total deferred income tax expense	584	754
Change in valuation allowance	0	0
Total income tax expense	$ 8,350	$ 7,068