Note 8 - Fair Value - Assets Measured on a Nonrecurring Basis (Details) - USD ($) $ in Thousands		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Dec. 31, 2024
Other Real Estate Owned [Member]
Expected Sales Costs to Appraised Value, Percentage		10.00%
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]
Other real estate owned	$ 2,775	$ 2,775	$ 1,176
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member] | Minimum [Member]
Expected Sales Costs to Appraised Value, Percentage	0.00%
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member] | Maximum [Member]
Expected Sales Costs to Appraised Value, Percentage	10.00%	10.00%
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member] | Weighted Average [Member]
Expected Sales Costs to Appraised Value, Percentage	5.00%	5.00%
Collateral Dependent Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]
Other real estate owned			$ 2,080
Collateral Dependent Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member] | Minimum [Member]
Expected Sales Costs to Appraised Value, Percentage	0.00%
Collateral Dependent Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member] | Maximum [Member]
Expected Sales Costs to Appraised Value, Percentage	20.00%
Collateral Dependent Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member] | Weighted Average [Member]
Expected Sales Costs to Appraised Value, Percentage	10.00%