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Note 5 - Loan Restructurings - Schedule of Performance of Loans Modified (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Effect of loan modification	$ 139	$ 103
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Effect of loan modification	124
Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member]
Effect of loan modification		74
Residential Portfolio Segment [Member] | Home Equity Loan [Member]
Effect of loan modification	15	29
Financial Asset, Not Past Due [Member]
Effect of loan modification	15	103
Financial Asset, Not Past Due [Member] | Accruing [Member]
Effect of loan modification	15
Financial Asset, Not Past Due [Member] | Nonaccrual [Member]
Effect of loan modification	0	103
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Accruing [Member]
Effect of loan modification	0
Financial Asset, Not Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Nonaccrual [Member]
Effect of loan modification	0
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member] | Nonaccrual [Member]
Effect of loan modification		74
Financial Asset, Not Past Due [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Accruing [Member]
Effect of loan modification	15
Financial Asset, Not Past Due [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Nonaccrual [Member]
Effect of loan modification	0	29
Financial Asset, 30 to 89 Days Past Due [Member]
Effect of loan modification	0	0
Financial Asset, 30 to 89 Days Past Due [Member] | Accruing [Member]
Effect of loan modification	0
Financial Asset, 30 to 89 Days Past Due [Member] | Nonaccrual [Member]
Effect of loan modification	0	0
Financial Asset, 30 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Accruing [Member]
Effect of loan modification	0
Financial Asset, 30 to 89 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Nonaccrual [Member]
Effect of loan modification	0
Financial Asset, 30 to 89 Days Past Due [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Accruing [Member]
Effect of loan modification	0
Financial Asset, 30 to 89 Days Past Due [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Nonaccrual [Member]
Effect of loan modification	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Effect of loan modification	124	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Accruing [Member]
Effect of loan modification	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Nonaccrual [Member]
Effect of loan modification	124	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Accruing [Member]
Effect of loan modification	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] | Nonaccrual [Member]
Effect of loan modification	124
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member] | Nonowner Occupied [Member] | Nonaccrual [Member]
Effect of loan modification		0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Accruing [Member]
Effect of loan modification	$ 0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Portfolio Segment [Member] | Home Equity Loan [Member] | Nonaccrual [Member]
Effect of loan modification		$ 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
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A

Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 33
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-33

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

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