Note 8 - Fair Value - Schedule of Assets and Liabilities Measured on Nonrecurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Investment securities held-to-maturity	$ 57,034	$ 70,700
Loans and loans held for sale	623,859	658,250
Borrowings	131,613	98,885
Certificates of Deposit [Member]
Certificates of deposit	494,739	491,638
Fair Value, Inputs, Level 1 [Member]
Investment securities held-to-maturity	0	0
Loans and loans held for sale	0	0
Borrowings	0	0
Fair Value, Inputs, Level 1 [Member] | Certificates of Deposit [Member]
Certificates of deposit	0	0
Fair Value, Inputs, Level 2 [Member]
Investment securities held-to-maturity	57,034	70,700
Loans and loans held for sale	0	0
Borrowings	131,613	98,885
Fair Value, Inputs, Level 2 [Member] | Certificates of Deposit [Member]
Certificates of deposit	494,739	491,638
Fair Value, Inputs, Level 3 [Member]
Investment securities held-to-maturity	0	0
Loans and loans held for sale	623,859	658,250
Borrowings	0	0
Fair Value, Inputs, Level 3 [Member] | Certificates of Deposit [Member]
Certificates of deposit	0	0
Reported Value Measurement [Member]
Investment securities held-to-maturity	65,927	77,427
Loans and loans held for sale	710,293	719,026
Borrowings	135,315	102,319
Reported Value Measurement [Member] | Certificates of Deposit [Member]
Certificates of deposit	$ 498,918	$ 492,593