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Loans and Allowance for Loan Credit Losses - Schedule of Allowance for Credit Losses by Portfolio Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Allowance for credit losses:
Balance, beginning of period	$ 4,193	$ 4,337	$ 4,514	$ 4,319	$ 4,319
Recapture of loan credit losses	(83)	(131)	(404)	(113)
Loans charged-off	0	0	0	0	0
Recoveries collected	0	0	0	0
Balance, end of period	4,110	4,206	4,110	4,206	4,514
Commercial real estate
Allowance for credit losses:
Balance, beginning of period	1,307	1,136	1,140	1,233	1,233
Recapture of loan credit losses	(10)	(114)	157	(211)
Loans charged-off	0	0	0	0	0
Recoveries collected	0	0	0	0
Balance, end of period	1,297	1,022	1,297	1,022	1,140
Commercial
Allowance for credit losses:
Balance, beginning of period	88	167	483	189	189
Recapture of loan credit losses	(11)	(3)	(406)	(25)
Loans charged-off	0	0	0	0	0
Recoveries collected	0	0	0	0
Balance, end of period	77	164	77	164	483
Residential real estate closed-end
Allowance for credit losses:
Balance, beginning of period	2,560	2,756	2,644	2,668	2,668
Recapture of loan credit losses	(89)	18	(173)	106
Loans charged-off	0	0	0	0	0
Recoveries collected	0	0	0	0
Balance, end of period	2,471	2,774	2,471	2,774	2,644
Other consumer loans
Allowance for credit losses:
Balance, beginning of period	238	278	247	229	229
Recapture of loan credit losses	27	(32)	18	17
Loans charged-off	0	0	0	0	0
Recoveries collected	0	0	0	0
Balance, end of period	$ 265	$ 246	$ 265	$ 246	$ 247

X

- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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- Definition

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- Definition

Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. 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 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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- Definition

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. 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 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

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- Definition

Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. 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 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476148/220-40-50-22

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