Note 8 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%
Effective Income Tax Rate Reconciliation, Percent	22.90%	19.40%
Tax Credit Carryforward, Amount	$ 0
Open Tax Year	2020 2021 2022 2023
Operating Loss Carryforwards	$ 0