Note 18 - Fair Value Measurements and Fair Value of Financial Instruments - Schedule of Fair Value Hierarchy Level and Estimated Fair Value of Significant Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Investment securities - AFS	$ 354,378	$ 256,830
Investment securities - HTM	4,750	5,563
Fair Value, Inputs, Level 1 [Member] | Reported Value Measurement [Member]
Cash and due from banks	330,791	83,548
Interest-earning deposits in other financial institutions	600	600
Mortgage loans held for sale	62	0
Accrued Interest Receivable	14,008	14,536
Accrued Interest Payable	11,333	3,711
Fair Value, Inputs, Level 1 [Member] | Estimate of Fair Value Measurement [Member]
Cash and due from banks	330,791	83,548
Interest-earning deposits in other financial institutions	600	600
Mortgage loans held for sale	57	0
Accrued Interest Receivable	14,008	14,536
Accrued Interest Payable	11,333	3,711
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member]
Investment securities - AFS	354,378	256,830
Investment securities - HTM	5,214	5,729
Servicing assets	8,439	9,521
Deposits	3,154,072	2,977,683
FHLB advances	150,000	220,000
Long-term debt	174,019	173,585
Subordinated debentures	14,884	14,720
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member]
Investment securities - AFS	354,378	256,830
Investment securities - HTM	4,750	5,563
Servicing assets	19,486	21,712
Deposits	3,120,299	2,960,529
FHLB advances	142,576	210,470
Long-term debt	130,154	132,709
Subordinated debentures	14,561	14,195
Fair Value, Inputs, Level 3 [Member] | Interest Rate Lock Contracts [Member]
Derivative assets, notional amount	9	0
Derivative assets	9	0
Fair Value, Inputs, Level 3 [Member] | Forward Mortgage Loan Sale Contracts [Member]
Derivative assets, notional amount	16	18
Derivative assets	16	18
Fair Value, Inputs, Level 3 [Member] | Reported Value Measurement [Member]
Loans, net	3,078,522	3,295,373
Equity securities	22,235	22,238
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Loans, net	3,023,903	3,251,464
Equity securities	$ 22,235	$ 22,238