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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
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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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