Note 13 - Assets and Liabilities Measured and Reported at Fair Value - Assets Measured at Fair Value on a Non-recurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Collateral dependent loans	$ 9,103		$ 9,103		$ 12,227
Gains (Losses) on Collateral Dependent Loans	38	$ 58
Other real estate owned	10		10
Other real estate owned, gain (loss)	0
Fair Value, Inputs, Level 1 [Member]
Collateral dependent loans	0		0		0
Gains (Losses) on Collateral Dependent Loans			38	$ 58
Other real estate owned	0		0
Other real estate owned, gain (loss)			0
Fair Value, Inputs, Level 2 [Member]
Collateral dependent loans	0		0		0
Other real estate owned	0		0
Fair Value, Inputs, Level 3 [Member]
Collateral dependent loans	9,103		9,103		$ 12,227
Other real estate owned	$ 10		$ 10