Loans, Nonaccrual Loans Segregated by Loan Segment (Details) - USD ($)	9 Months Ended	12 Months Ended
Sep. 30, 2025	Dec. 31, 2024
Nonaccrual loans segregated by class of loans [Abstract]
Nonaccrual loans with no ACL	$ 37,000	$ 8,246,000
Nonaccrual loans with ACL	15,610,000	8,123,000
90+ and still accruing	9,040,000	10,317,000
Nonperforming loans	24,687,000	26,686,000
Interest income	26,600	189,400
Commercial [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Nonaccrual loans with no ACL	37,000	8,246,000
Nonaccrual loans with ACL	12,333,000	3,995,000
90+ and still accruing	3,523,000	3,946,000
Nonperforming loans	15,893,000	16,187,000
Commercial [Member] \| Commercial Real Estate Residential [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Nonaccrual loans with no ACL	0	0
Nonaccrual loans with ACL	1,026,000	1,248,000
90+ and still accruing	2,276,000	369,000
Nonperforming loans	3,302,000	1,617,000
Commercial [Member] \| Commercial Real Estate Nonresidential [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Nonaccrual loans with no ACL	0	8,000,000
Nonaccrual loans with ACL	10,593,000	1,641,000
90+ and still accruing	739,000	3,513,000
Nonperforming loans	11,332,000	13,154,000
Commercial [Member] \| Commercial Other [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Nonaccrual loans with no ACL	37,000	246,000
Nonaccrual loans with ACL	714,000	1,106,000
90+ and still accruing	508,000	64,000
Nonperforming loans	1,259,000	1,416,000
Residential [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Nonaccrual loans with no ACL	0	0
Nonaccrual loans with ACL	3,277,000	3,952,000
90+ and still accruing	4,867,000	5,516,000
Nonperforming loans	8,144,000	9,468,000
Residential [Member] \| Real Estate Mortgage [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Nonaccrual loans with no ACL	0	0
Nonaccrual loans with ACL	2,999,000	3,748,000
90+ and still accruing	4,416,000	5,072,000
Nonperforming loans	7,415,000	8,820,000
Residential [Member] \| Home Equity Lines [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Nonaccrual loans with no ACL	0	0
Nonaccrual loans with ACL	278,000	204,000
90+ and still accruing	451,000	444,000
Nonperforming loans	729,000	648,000
Consumer [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Nonaccrual loans with no ACL	0	0
Nonaccrual loans with ACL	0	176,000
90+ and still accruing	650,000	855,000
Nonperforming loans	650,000	1,031,000
Consumer [Member] \| Consumer Direct [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Nonaccrual loans with no ACL	0	0
Nonaccrual loans with ACL	0	176,000
90+ and still accruing	35,000	93,000
Nonperforming loans	35,000	269,000
Consumer [Member] \| Consumer Indirect [Member]
Nonaccrual loans segregated by class of loans [Abstract]
Nonaccrual loans with no ACL	0	0
Nonaccrual loans with ACL	0	0
90+ and still accruing	615,000	762,000
Nonperforming loans	$ 615,000	$ 762,000

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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- Definition

Amount of interest income on financing receivable on nonaccrual status.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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- Definition

Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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- Definition

Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Subparagraph (b)
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-URI https://asc.fasb.org/1943274/2147481962/310-10-50-7

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
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-Section 55
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-URI https://asc.fasb.org/1943274/2147479294/326-20-55-80

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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- Definition

Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Subparagraph (a)
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-URI https://asc.fasb.org/1943274/2147481962/310-10-50-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph a
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
-Section 50
-Paragraph 16
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-16

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- References

No definition available.

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