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Allowance for Credit Losses - Schedule of Allowance for Loan Losses on Basis of Calculation Methodology (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Total	$ 18,167	$ 18,050	$ 17,612	$ 16,916
Residential 1-4 Family First Mortgages [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Total	1,433	1,467
Residential Construction Mortgage [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Total	504	592
Real Estate [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Total	7,079	6,746
Lines of Credit [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Total	911	749
Other Commercial and Industrial [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Total	2,848	2,879
Tax Exempt Loans [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Total	2	4
Home Equity and Junior Liens [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Total	694	715
Other Consumer [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Total	3,936	4,091
Unallocated [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Total	17,407	17,243
Residential Mortgage Loans [Member] | Residential 1-4 Family First Mortgages [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Specifically reserved	41	42
Historical loss rate	1,440	1,474
Qualitative factors	(48)	(49)
Residential Mortgage Loans [Member] | Residential Construction Mortgage [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Specifically reserved	0	0
Historical loss rate	504	592
Qualitative factors	0	0
Commercial Loans [Member] | Real Estate [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Specifically reserved	1,004	853
Historical loss rate	2,880	2,779
Qualitative factors	3,195	3,114
Commercial Loans [Member] | Lines of Credit [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Specifically reserved	253	154
Historical loss rate	154	126
Qualitative factors	504	469
Commercial Loans [Member] | Other Commercial and Industrial [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Specifically reserved	1,012	1,165
Historical loss rate	1,111	1,032
Qualitative factors	725	682
Commercial Loans [Member] | Tax Exempt Loans [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Specifically reserved	0	0
Historical loss rate	2	4
Qualitative factors	0	0
Consumer Loans [Member] | Home Equity and Junior Liens [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Specifically reserved	392	416
Historical loss rate	281	278
Qualitative factors	21	21
Consumer Loans [Member] | Other Consumer [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Specifically reserved	3,639	3,774
Historical loss rate	266	285
Qualitative factors	31	32
Consumer Loans [Member] | Unallocated [Member]
Allowance For Loan Losses On Basis Of Calculation Methodology Abstract
Specifically reserved	6,341	6,404
Historical loss rate	6,638	6,570
Qualitative factors	$ 4,428	$ 4,269

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Allowance for Loan Losses on Basis of Calculation Methodology [Abstract]

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Financing Receivable Allowance For Credit Loss Individually Evaluated

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Amount of financing receivables in allowance to historical loss rate.

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Amount of financing receivables in allowance to qualitative factors.

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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