Note 5 - Loan Restructurings - Schedule of Performance of Loans Modified (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Loans, modified	$ 2,818	$ 11,364	$ 7,177	$ 11,502
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member]
Loans, modified	2,777	11,128	7,098	11,128
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans, modified	41	103	79	103
Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans, modified		75		89
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Loans, modified		58		182
Financial Asset, Not Past Due [Member]
Loans, modified	2,818	11,364	7,139	11,378
Financial Asset, Not Past Due [Member] \| Accruing [Member]
Loans, modified	2,818	11,306	2,818	11,320
Financial Asset, Not Past Due [Member] \| Accruing [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member]
Loans, modified	2,777	11,128	2,777	11,128
Financial Asset, Not Past Due [Member] \| Accruing [Member] \| Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans, modified	41	103	41	103
Financial Asset, Not Past Due [Member] \| Accruing [Member] \| Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans, modified		75		89
Financial Asset, Not Past Due [Member] \| Accruing [Member] \| Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Loans, modified				58
Financial Asset, Not Past Due [Member] \| Nonaccrual [Member]
Loans, modified	0	58	4,321	58
Financial Asset, Not Past Due [Member] \| Nonaccrual [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member]
Loans, modified	0		4,321
Financial Asset, Not Past Due [Member] \| Nonaccrual [Member] \| Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans, modified	0		0
Financial Asset, Not Past Due [Member] \| Nonaccrual [Member] \| Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans, modified				0
Financial Asset, 30 to 89 Days Past Due [Member]
Loans, modified	0	0	38	0
Financial Asset, 30 to 89 Days Past Due [Member] \| Accruing [Member]
Loans, modified	0	0	0	0
Financial Asset, 30 to 89 Days Past Due [Member] \| Accruing [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member]
Loans, modified	0	0	0	0
Financial Asset, 30 to 89 Days Past Due [Member] \| Accruing [Member] \| Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans, modified	0		0
Financial Asset, 30 to 89 Days Past Due [Member] \| Accruing [Member] \| Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans, modified		0		0
Financial Asset, 30 to 89 Days Past Due [Member] \| Nonaccrual [Member]
Loans, modified	0	0	38	0
Financial Asset, 30 to 89 Days Past Due [Member] \| Nonaccrual [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member]
Loans, modified	0		0
Financial Asset, 30 to 89 Days Past Due [Member] \| Nonaccrual [Member] \| Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans, modified	0		38
Financial Asset, 30 to 89 Days Past Due [Member] \| Nonaccrual [Member] \| Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans, modified				0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, modified	0	0	0	124
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Accruing [Member]
Loans, modified	0	0	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Accruing [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member]
Loans, modified	0	0	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Accruing [Member] \| Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans, modified	0		0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Accruing [Member] \| Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans, modified		0		0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Accruing [Member] \| Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Loans, modified				124
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Nonaccrual [Member]
Loans, modified	0	$ 0	0	124
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Nonaccrual [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member]
Loans, modified	0		0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Nonaccrual [Member] \| Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans, modified	$ 0		$ 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Nonaccrual [Member] \| Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans, modified				$ 0