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Loans and Allowance for Credit Losses on Loans - Schedule of Collateral-Dependent Non-Accrual Loans (Details) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | $ 7,992,000 | $ 2,432,000 |  |
Allowance for credit losses on loans | $ 25,172,000 | $ 22,983,000 | $ 23,023,000 | $ 22,874,000
Weighted average ratio of loans value to collateral dependent loans value | 70.00% | 42.00% |  |
Collateral Pledged |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | $ 5,295,000 | $ 2,432,000 |  |
Allowance for credit losses on loans | 408,000 | 0 |  |
Commercial Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 4,826,000 | 1,563,000 |  |
Residential Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 469,000 | 778,000 |  |
Other |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 0 | 91,000 |  |
Commercial real estate | Commercial and industrial | Collateral Pledged |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 1,311,000 |  |  |
Allowance for credit losses on loans | 0 |  |  |
Commercial real estate | Commercial and industrial | Commercial Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 1,311,000 |  |  |
Commercial real estate | Commercial and industrial | Residential Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 0 |  |  |
Commercial real estate | Commercial and industrial | Other |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 0 |  |  |
Commercial real estate | Commercial owner-occupied |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 434,000 | 1,563,000 |  |
Allowance for credit losses on loans | 2,476,000 | 2,487,000 | 2,776,000 | 2,778,000
Commercial real estate | Commercial owner-occupied | Collateral Pledged |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 434,000 | 1,563,000 |  |
Allowance for credit losses on loans | 0 | 0 |  |
Commercial real estate | Commercial owner-occupied | Commercial Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 434,000 | 1,563,000 |  |
Commercial real estate | Commercial owner-occupied | Residential Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 0 | 0 |  |
Commercial real estate | Commercial owner-occupied | Other |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 0 | 0 |  |
Commercial real estate | Commercial real estate, non-owner occupied |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 3,081,000 | 0 |  |
Allowance for credit losses on loans | 14,933,000 | 12,676,000 | 12,739,000 | 12,682,000
Commercial real estate | Commercial real estate, non-owner occupied | Collateral Pledged |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 3,081,000 |  |  |
Allowance for credit losses on loans | 408,000 |  |  |
Commercial real estate | Commercial real estate, non-owner occupied | Commercial Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 3,081,000 |  |  |
Commercial real estate | Commercial real estate, non-owner occupied | Residential Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 0 |  |  |
Commercial real estate | Commercial real estate, non-owner occupied | Other |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 0 |  |  |
Residential loans | Home equity |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 469,000 | 778,000 |  |
Allowance for credit losses on loans | 552,000 | 558,000 | 595,000 | 738,000
Residential loans | Home equity | Collateral Pledged |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 469,000 | 778,000 |  |
Allowance for credit losses on loans | 0 | 0 |  |
Residential loans | Home equity | Commercial Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 0 | 0 |  |
Residential loans | Home equity | Residential Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 469,000 | 778,000 |  |
Residential loans | Home equity | Other |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 0 | 0 |  |
Residential loans | Other residential |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 0 | 0 |  |
Allowance for credit losses on loans | 653,000 | 595,000 | 644,000 | 998,000
Residential loans | Other residential | Residential Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Nonaccrual collateral dependent loans in process of foreclosure | 0 | 0 |  |
Consumer loans | Installment and other consumer loans |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans | 0 | 91,000 |  |
Allowance for credit losses on loans | $ 976,000 | 868,000 | $ 621,000 | $ 291,000
Consumer loans | Installment and other consumer loans | Collateral Pledged |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans |  | 91,000 |  |
Allowance for credit losses on loans |  | 0 |  |
Consumer loans | Installment and other consumer loans | Commercial Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans |  | 0 |  |
Consumer loans | Installment and other consumer loans | Residential Real Estate |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans |  | 0 |  |
Consumer loans | Installment and other consumer loans | Other |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Non-accrual loans |  | $ 91,000 |  |

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