Note 21 - Assets and Liabilities Measured and Reported at Fair Value - Assets Measured at Fair Value on a Non-recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other real estate owned, gain (loss)	$ (0)	$ (43)	$ 46
Fair Value, Nonrecurring [Member]
Collateral dependent loans	12,227	13,561	20,637
Collateral dependent loans	713	1,681	303
Other real estate owned		10	677
Other real estate owned, gain (loss)		25	0
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Collateral dependent loans	0	0	0
Other real estate owned		0	0
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Collateral dependent loans	0	0	0
Other real estate owned		0	0
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Collateral dependent loans	$ 12,227	13,561	20,637
Other real estate owned		$ 10	$ 677