Loans and Allowance for Credit Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Loans and Allowance for Credit Losses
Beginning balance	$ 9,728	$ 8,560	$ 9,281	$ 8,005
Provision for credit losses	150	463	794	1,103
Charge-offs	(61)	(104)	(355)	(289)
Recoveries	44	40	141	140
Ending balance	9,861	8,959	9,861	8,959
Residential portfolio segment \| 1-4 Family Residential Mortgage
Loans and Allowance for Credit Losses
Beginning balance	1,511	1,302	1,592	1,490
Provision for credit losses	(70)	(166)	(158)	(364)
Charge-offs	(1)		(1)	(4)
Recoveries		15	7	29
Ending balance	1,440	1,151	1,440	1,151
Residential portfolio segment \| Home Equity And Second Mortgage
Loans and Allowance for Credit Losses
Beginning balance	768	559	478	406
Provision for credit losses	172	(127)	462	22
Recoveries	1		1	4
Ending balance	941	432	941	432
Residential portfolio segment \| Multifamily
Loans and Allowance for Credit Losses
Beginning balance	463	342	545	332
Provision for credit losses	36	322	(46)	332
Ending balance	499	664	499	664
Construction \| 1-4 Family Residential Construction
Loans and Allowance for Credit Losses
Beginning balance	247	179	184	208
Provision for credit losses	(16)	(49)	47	(78)
Ending balance	231	130	231	130
Construction \| Other Construction, Development and Land
Loans and Allowance for Credit Losses
Beginning balance	695	803	588	804
Provision for credit losses	(245)	(204)	(138)	(205)
Ending balance	450	599	450	599
Commercial portfolio segment \| Commercial Real Estate
Loans and Allowance for Credit Losses
Beginning balance	3,032	2,347	2,459	2,119
Provision for credit losses	(36)	(123)	537	104
Recoveries				1
Ending balance	2,996	2,224	2,996	2,224
Commercial portfolio segment \| Commercial Business
Loans and Allowance for Credit Losses
Beginning balance	2,180	1,920	2,424	1,431
Provision for credit losses	134	417	(49)	905
Charge-offs			(83)
Recoveries	7	1	29	2
Ending balance	2,321	2,338	2,321	2,338
Consumer portfolio segment \| Consumer and Other
Loans and Allowance for Credit Losses
Beginning balance	832	1,108	1,011	1,215
Provision for credit losses	175	393	139	387
Charge-offs	(60)	(104)	(271)	(285)
Recoveries	36	24	104	104
Ending balance	$ 983	$ 1,421	$ 983	$ 1,421

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

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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ 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

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Section 50
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