Note 9 - Loans - Accruing Troubled Debt Restructurings (Details) - Accruing Troubled Debt Restructuring [Member] $ in Thousands	Dec. 31, 2022 USD ($)
Accruing TDRs	$ 15,145
Payment Deferral [Member]
Accruing TDRs	7,560
Contractual Interest Rate Reduction [Member]
Accruing TDRs	445
Rate Reduction and Payment Deferral [Member]
Accruing TDRs	7,140
Commercial Portfolio Segment [Member]
Accruing TDRs	2,588
Commercial Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	2,588
Commercial Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs	0
Commercial Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	0
Commercial Real Estate Portfolio Segment [Member]
Accruing TDRs	8,646
Commercial Real Estate Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	2,791
Commercial Real Estate Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs	0
Commercial Real Estate Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	5,855
Residential Portfolio Segment [Member]
Accruing TDRs	3,911
Residential Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	2,181
Residential Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs	445
Residential Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	$ 1,285