Note 8 - Fair Value - Assets Measured on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Collateral Dependent Loans [Member] \| Fair Value, Inputs, Level 3 [Member] \| Fair Value, Nonrecurring [Member]
Fair value	$ 7	$ 2,080
Collateral Dependent Loans [Member] \| Fair Value, Inputs, Level 3 [Member] \| Fair Value, Nonrecurring [Member] \| Minimum [Member]
Percent, expected sales cost to appraised rate	0.00%	0.00%
Fair value	0.00%	0.00%
Collateral Dependent Loans [Member] \| Fair Value, Inputs, Level 3 [Member] \| Fair Value, Nonrecurring [Member] \| Maximum [Member]
Percent, expected sales cost to appraised rate	20.00%	20.00%
Fair value	(20.00%)	(20.00%)
Collateral Dependent Loans [Member] \| Fair Value, Inputs, Level 3 [Member] \| Fair Value, Nonrecurring [Member] \| Weighted Average [Member]
Percent, expected sales cost to appraised rate	10.00%	10.00%
Fair value	(10.00%)	(10.00%)
Other Real Estate Owned [Member]
Percent, expected sales cost to appraised rate	10.00%
Fair value	(10.00%)
Other Real Estate Owned [Member] \| Fair Value, Inputs, Level 3 [Member] \| Fair Value, Nonrecurring [Member]
Fair value	$ 2,758	$ 1,176
Other Real Estate Owned [Member] \| Fair Value, Inputs, Level 3 [Member] \| Fair Value, Nonrecurring [Member] \| Minimum [Member]
Percent, expected sales cost to appraised rate	0.00%	0.00%
Fair value	0.00%	0.00%
Other Real Estate Owned [Member] \| Fair Value, Inputs, Level 3 [Member] \| Fair Value, Nonrecurring [Member] \| Maximum [Member]
Percent, expected sales cost to appraised rate	10.00%	10.00%
Fair value	(10.00%)	(10.00%)
Other Real Estate Owned [Member] \| Fair Value, Inputs, Level 3 [Member] \| Fair Value, Nonrecurring [Member] \| Weighted Average [Member]
Percent, expected sales cost to appraised rate	5.00%	5.00%
Fair value	(5.00%)	(5.00%)