Note 9 - Loans - Accruing Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Accruing TDRs	$ 126
Contractual Interest Rate Reduction [Member]
Accruing TDRs	0
Rate Reduction and Payment Deferral [Member]
Accruing TDRs	126
Accruing Troubled Debt Restructuring [Member]
Accruing TDRs		$ 15,145
Accruing Troubled Debt Restructuring [Member] | Payment Deferral [Member]
Accruing TDRs		7,560
Accruing Troubled Debt Restructuring [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs		445
Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs		7,140
Commercial Portfolio Segment [Member]
Accruing TDRs	126
Commercial Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs	0
Commercial Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	$ 126
Commercial Portfolio Segment [Member] | Accruing Troubled Debt Restructuring [Member]
Accruing TDRs		2,588
Commercial Portfolio Segment [Member] | Accruing Troubled Debt Restructuring [Member] | Payment Deferral [Member]
Accruing TDRs		2,588
Commercial Portfolio Segment [Member] | Accruing Troubled Debt Restructuring [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs		0
Commercial Portfolio Segment [Member] | Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs		0
Commercial Real Estate Portfolio Segment [Member] | Accruing Troubled Debt Restructuring [Member]
Accruing TDRs		8,646
Commercial Real Estate Portfolio Segment [Member] | Accruing Troubled Debt Restructuring [Member] | Payment Deferral [Member]
Accruing TDRs		2,791
Commercial Real Estate Portfolio Segment [Member] | Accruing Troubled Debt Restructuring [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs		0
Commercial Real Estate Portfolio Segment [Member] | Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs		5,855
Residential Portfolio Segment [Member] | Accruing Troubled Debt Restructuring [Member]
Accruing TDRs		3,911
Residential Portfolio Segment [Member] | Accruing Troubled Debt Restructuring [Member] | Payment Deferral [Member]
Accruing TDRs		2,181
Residential Portfolio Segment [Member] | Accruing Troubled Debt Restructuring [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs		445
Residential Portfolio Segment [Member] | Accruing Troubled Debt Restructuring [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs		$ 1,285