Note 20 - Derivative Financial Instruments - Outstanding Undesignated Interest Rate Swap Contracts (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Receiving [Member]
Notional amount	$ 169,054	$ 132,831
Weighted average maturity (Year)	6 years	7 years 1 month 6 days
Fair value	$ 11,920	$ 10,727
Paying [Member]
Notional amount	$ 169,054	$ 132,831
Weighted average maturity (Year)	6 years	7 years 1 month 6 days
Fair value	$ 11,929	$ 10,737