Note 15 - Regulatory Matters (Details Textual) $ in Millions	Dec. 31, 2024 USD ($)
Banking Regulation, Total Risk-Based Capital Ratio, Excess, Actual	0.08
Excess Tier One Common Equity to Risk Weighted Assets	4.50%
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual	0.06
Banking Regulation, Excess Tier 1 Leverage Capital Ratio, Actual	0.04
Capital Conversion Buffer	2.50%
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval	$ 161.2
Maximum [Member]
Capital Conversion Buffer	2.50%