Note 16 - Mortgage Banking Activities - Notional Amounts and Fair Values (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Mortgage loans held for sale, at fair value	$ 6,289	$ 2,548
Mortgage loans held for sale, at fair value	6,397	2,606
Derivative assets	8,636	10,727
Other Assets [Member] | Rate Lock Loan Commitments [Member]
Derivative, notional amount	12,861	5,599
Derivative assets	468	137
Other Assets [Member] | Mandatory Forward Contract [Member]
Derivative, notional amount	13,841	6,581
Derivative assets	$ (71)	$ 47