Note 5 - Loan Restructurings - Schedule of Loan Modifications (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
Loans, modified, percentage	0.06%	0.00%	0.15%	0.00%
Payment Deferral [Member]
Loans, modified	$ 0	$ 103	$ 4,321	$ 227
Extended Maturity [Member]
Loans, modified	0	11,128	0	11,142
Contractual Interest Rate Reduction [Member]
Loans, modified	0	0	0	0
Combination Payment Deferral and Interest Rate Reduction [Member]
Loans, modified	41		79	133
Combination Term Extension and Payment Deferral [Member]
Loans, modified	2,777	133	2,777
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member]
Loans, modified	$ 2,777	$ 11,128	$ 7,098	$ 11,128
Loans, modified, percentage	0.27%	0.02%	0.70%	0.02%
Interest rate after modification	1.00%		1.00%
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Payment Deferral [Member]
Loans, modified	$ 0	$ 0	$ 4,321	$ 0
Weighted average principal deferred	45		45
Payment deferral, weighted average principal deferred		0	64	0
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Extended Maturity [Member]
Loans, modified	0	$ 11,128	$ 0	$ 11,128
Term extension, years added (Year)		1 year	1 year	1 year
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Contractual Interest Rate Reduction [Member]
Loans, modified	0	$ 0	$ 0	$ 0
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Combination Payment Deferral and Interest Rate Reduction [Member]
Loans, modified	0		0	0
Commercial Real Estate Portfolio Segment [Member] \| Nonowner Occupied [Member] \| Combination Term Extension and Payment Deferral [Member]
Loans, modified	2,777	0	2,777
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Loans, modified		$ 58		$ 182
Loans, modified, percentage		0.00%		0.00%
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Payment Deferral [Member]
Loans, modified		$ 0		$ 124
Payment deferral, weighted average principal deferred				112
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Extended Maturity [Member]
Loans, modified		$ 0		$ 0
Term extension, years added (Year)		6 years		6 years
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Contractual Interest Rate Reduction [Member]
Loans, modified		$ 0		$ 0
Interest rate after modification		8.00%		8.00%
Interest rate before modification		10.25%		10.25%
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Combination Payment Deferral and Interest Rate Reduction [Member]
Loans, modified				$ 58
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Combination Term Extension and Payment Deferral [Member]
Loans, modified		$ 58
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member]
Loans, modified	$ 41	$ 103	$ 79	$ 103
Loans, modified, percentage	0.00%	0.00%	0.01%	0.00%
Interest rate after modification	10.00%		10.00%
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Payment Deferral [Member]
Loans, modified	$ 0	$ 103	$ 0	$ 103
Payment deferral, weighted average principal deferred		6	5	6
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Extended Maturity [Member]
Loans, modified	$ 0	0	$ 0	0
Interest rate after modification	5.00%		5.00%
Interest rate before modification	5.25%		5.25%
Term extension, years added (Year)			10 years
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Contractual Interest Rate Reduction [Member]
Loans, modified	$ 0	0	$ 0	0
Interest rate after modification	4.032%		4.032%
Interest rate before modification	5.976%		5.976%
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Combination Payment Deferral and Interest Rate Reduction [Member]
Loans, modified	$ 41		$ 79	0
Residential Portfolio Segment [Member] \| 1-4 Family Residential [Member] \| Combination Term Extension and Payment Deferral [Member]
Loans, modified	$ 0	0	$ 0
Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Loans, modified		$ 75		$ 89
Loans, modified, percentage		0.00%		0.00%
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Payment Deferral [Member]
Loans, modified		$ 0		$ 0
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Extended Maturity [Member]
Loans, modified		$ 0		$ 14
Term extension, years added (Year)		10 years		9 years
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Contractual Interest Rate Reduction [Member]
Loans, modified		$ 0		$ 0
Interest rate after modification		4.00%		4.00%
Interest rate before modification		7.75%		7.75%
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Combination Payment Deferral and Interest Rate Reduction [Member]
Loans, modified				$ 75
Residential Portfolio Segment [Member] \| Home Equity Loan [Member] \| Combination Term Extension and Payment Deferral [Member]
Loans, modified		$ 75

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No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Weighted average principal deferred of payment deferral of financing receivable modified for debtor experiencing financial difficulty.

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

Percentage of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables.

+ References

+ Details

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- 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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- Definition

Percentage, after modification, of weighted-average interest rate of financing receivable for debtor experiencing financial difficulty.

+ References

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- Definition

Percentage, before modification, of weighted-average interest rate of financing receivable for debtor experiencing financial difficulty.

+ References

+ Details

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- Definition

Period of increase in weighted-average maturity of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

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