Note 11 - Income Taxes (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Tax Expense (Benefit)	$ 4,000	$ 5,000
Effective Income Tax Rate Reconciliation, Percent	1.00%	1.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%