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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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