Note 9 - Income Taxes - Allocation of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Current	$ 2,234	$ 5,940
Deferred income tax expense (benefit)	750	(109)
Total income tax expense	$ 2,984	$ 5,831