Loans - Additional Information (Details)	12 Months Ended
Dec. 31, 2022 USD ($) loan	Dec. 31, 2023 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Net discount on loans	$ 6,866,000	$ 4,340,000
Unearned income	4,580,000	5,321,000
Total loans	2,430,750,000	2,581,638,000
Accrued interest receivable for loans	9,520,000	11,986,000
Financing receivable, recorded investment, 90 days past due and still accruing	2,000	0
Threshold for significant investments		500,000
Foreclosed assets and ORE	461,000	1,575,000
Loans secured by residential real estate that are in process of foreclosure	$ 179,000	517,000
Loans modified in the period \| loan	11
Nonrecurring
Financing Receivable, Troubled Debt Restructuring [Line Items]
Foreclosed assets and ORE	$ 461,000	1,575,000
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	377,894,000	405,659,000
Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	1,152,537,000	1,192,691,000
PPP loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Deferred lender fees	94,000	60,000
PPP loans \| Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total loans	6,692,000	5,532,000
Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Repossessed Assets	$ 231,000	$ 115,000

Financing Receivable, Excluding Accrued Interest, Loans Modified In Period

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Financing Receivable, Significant Loan Threshold

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Foreclosed Assets and Other Real Estate Owned, Fair Value Disclosure

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Unearned discounts (other than cash or quantity discounts and the like), finance charges, and interest included in the face amount of receivables, that are shown as a deduction from the related receivables. For example, 1) finance charges booked as a receivable when a loan is made and recognized as income at a later date; and 2) interest charges deducted from the face loan amount, resulting in a discounted amount actually advanced to the borrower (wherein the receivable includes the amount actually advanced to the borrower and the as yet unearned interest income).

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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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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.

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Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

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Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

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Amount of unamortized loan commitment, origination, and other costs (fees) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

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Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts.

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Carrying amount as of the balance sheet date of current interest earned but not received. Also called accrued interest or accrued interest receivable. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.

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Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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