Note 13 - Assets and Liabilities Measured and Reported at Fair Value - Significant Unobservable Inputs (Details) - Impaired Loans [Member] - Fair Value, Inputs, Level 3 [Member] - Appraisal Discount Method [Member] $ in Thousands	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Collateral dependent loans	$ 8,191	$ 12,227
Other real estate owned	$ 85
Weighted Average [Member]
Impaired Loans, Measurement Input	0.28	0.157
Other Real Estate Owned, Measurement Input	0.606