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Note 5 - Loan Restructurings - Schedule of Performance of Loans Modified (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Loans, modified	$ 1,380	$ 0	$ 12,882	$ 49
Commercial Real Estate Portfolio Segment [Member] | Other Loans [Member]
Loans, modified	1,103		1,103
Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member]
Loans, modified			11,128
Residential Portfolio Segment [Member] | Home Equity Loan [Member]
Loans, modified	277	0	366	49
Residential Portfolio Segment [Member] | 1-4 Family Residential [Member]
Loans, modified			103
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans, modified			182
Financial Asset, Not Past Due [Member]
Loans, modified	1,380	0	12,779	0
Financial Asset, Not Past Due [Member] | Accruing [Member]
Loans, modified	0	0	11,345	0
Financial Asset, Not Past Due [Member] | Nonaccrual [Member]
Loans, modified	1,380	0	1,434	0
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Other Loans [Member] | Accruing [Member]
Loans, modified	0		0
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Other Loans [Member] | Nonaccrual [Member]
Loans, modified	1,103		1,103
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member] | Accruing [Member]
Loans, modified			11,154
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member] | Nonaccrual [Member]
Loans, modified			0
Financial Asset, Not Past Due [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Accruing [Member]
Loans, modified	0	0	88	0
Financial Asset, Not Past Due [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Nonaccrual [Member]
Loans, modified	277		277	0
Financial Asset, Not Past Due [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential [Member] | Accruing [Member]
Loans, modified			103
Financial Asset, Not Past Due [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential [Member] | Nonaccrual [Member]
Loans, modified			0
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Accruing [Member]
Loans, modified			0
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Nonaccrual [Member]
Loans, modified			54
Financial Asset, 30 to 89 Days Past Due [Member]
Loans, modified	0	0	0	20
Financial Asset, 30 to 89 Days Past Due [Member] | Accruing [Member]
Loans, modified	0	0	0	20
Financial Asset, 30 to 89 Days Past Due [Member] | Nonaccrual [Member]
Loans, modified	0	0	0	0
Financial Asset, 30 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Other Loans [Member] | Accruing [Member]
Loans, modified	0		0
Financial Asset, 30 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Other Loans [Member] | Nonaccrual [Member]
Loans, modified	0		0
Financial Asset, 30 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member] | Accruing [Member]
Loans, modified			0
Financial Asset, 30 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member] | Nonaccrual [Member]
Loans, modified			0
Financial Asset, 30 to 89 Days Past Due [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Accruing [Member]
Loans, modified	0	0	0	20
Financial Asset, 30 to 89 Days Past Due [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Nonaccrual [Member]
Loans, modified	0		0	0
Financial Asset, 30 to 89 Days Past Due [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential [Member] | Accruing [Member]
Loans, modified			0
Financial Asset, 30 to 89 Days Past Due [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential [Member] | Nonaccrual [Member]
Loans, modified			0
Financial Asset, 30 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Accruing [Member]
Loans, modified			0
Financial Asset, 30 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Nonaccrual [Member]
Loans, modified			0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans, modified	0	0	0	29
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] | Nonaccrual [Member]
Loans, modified	0	0	0	29
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Other Loans [Member] | Accruing [Member]
Loans, modified	0		0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Other Loans [Member] | Nonaccrual [Member]
Loans, modified	0		0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member] | Accruing [Member]
Loans, modified			0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member] | Nonaccrual [Member]
Loans, modified			0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Accruing [Member]
Loans, modified	0	$ 0	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Nonaccrual [Member]
Loans, modified	$ 0		0	$ 29
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential [Member] | Accruing [Member]
Loans, modified			0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Portfolio Segment [Member] | 1-4 Family Residential [Member] | Nonaccrual [Member]
Loans, modified			0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Accruing [Member]
Loans, modified			0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Nonaccrual [Member]
Loans, modified			$ 0

X

- Definition

Amortized cost of financing receivable modified during period for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
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-URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A

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-Topic 310
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-Section 50
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-URI https://asc.fasb.org/1943274/2147481962/310-10-50-33

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
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-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

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