Loan Portfolio and Allowance for Credit Losses - Amortized Cost Basis of Loans on Nonaccrual Status (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Loan Portfolio and Allowance for Credit Losses [Abstract]
Non-accrual With No Allowance for Credit Loss	$ 16,140	$ 17,265
Non-accrual	2,337	1,535
Loans Past Due Over 89 Days Still Accruing	0	0
Installment [Member]
Loan Portfolio and Allowance for Credit Losses [Abstract]
Non-accrual With No Allowance for Credit Loss	30	112
Non-accrual	13	18
Loans Past Due Over 89 Days Still Accruing	0	0
Commercial Real Estate [Member] \| Commercial [Member]
Loan Portfolio and Allowance for Credit Losses [Abstract]
Non-accrual With No Allowance for Credit Loss	285	329
Non-accrual	0	0
Loans Past Due Over 89 Days Still Accruing	0	0
Other [Member] \| Commercial [Member]
Loan Portfolio and Allowance for Credit Losses [Abstract]
Non-accrual With No Allowance for Credit Loss	7	14
Non-accrual		0
Loans Past Due Over 89 Days Still Accruing	0	0
First Mortgages [Member] \| Real Estate Mortgage - 1 to 4 Family [Member]
Loan Portfolio and Allowance for Credit Losses [Abstract]
Non-accrual With No Allowance for Credit Loss	13,182	13,560
Non-accrual	2,055	1,394
Loans Past Due Over 89 Days Still Accruing	0	0
Home Equity Loans [Member] \| Real Estate Mortgage - 1 to 4 Family [Member]
Loan Portfolio and Allowance for Credit Losses [Abstract]
Non-accrual With No Allowance for Credit Loss	404	526
Non-accrual	20	0
Loans Past Due Over 89 Days Still Accruing	0	0
Home Equity Lines of Credit [Member] \| Real Estate Mortgage - 1 to 4 Family [Member]
Loan Portfolio and Allowance for Credit Losses [Abstract]
Non-accrual With No Allowance for Credit Loss	2,232	2,724
Non-accrual	249	123
Loans Past Due Over 89 Days Still Accruing	$ 0	$ 0

Amount of financing receivable on nonaccrual status with allowance for credit loss.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

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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)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-7

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 80
-Publisher FASB
-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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