Note 10 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Tax Expense (Benefit)	$ 0	$ 0
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%
Operating Loss Carryforwards	$ 37,000,000
Unrecognized Tax Benefits	0
Unrecognized Tax Benefits, Period Increase (Decrease)	0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	$ 0