Note 7 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Tax Expense (Benefit)	$ 680	$ 57
Effective Income Tax Rate Reconciliation, Percent	14.80%	6.00%
Supplemental Executive Retirement Plan (SERP) [Member]
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount		$ 200
Put Option [Member]
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount		$ 400