Allowance for Credit Losses - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 USD ($) Unit loan_class	Jan. 01, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans	$ 24,030,000	$ 22,933,000	$ 16,723,000	$ 15,521,000	$ 16,253,000
Number of loan classes | loan_class	10
Loan-to-value percent, commercial real estate	80.00%
Construction loans, percent of capital	43.90%
Construction loans, maximum percent of capital	100.00%
Construction loans and non-owner-occupied commercial real estate loans, percent of capital	219.40%
Construction loans and non-owner-occupied commercial real estate loans, maximum percent of capital	300.00%
Allowance for loan losses as a percent of total loans	1.13%		0.87%
Outstanding loans and commitments subject by independent consulting firm	60.00%
Impact of ASC 326 Adoption
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans		$ 6,210,000	$ 6,210,000
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of claims under review by management	$ 750,000
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans	$ 1,978,000		821,000	746,000	662,000
Loan maturities	2 years
Commercial | Construction | Impact of ASC 326 Adoption
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans			943,000
Commercial | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans	$ 1,318,000		0
Number of units | Unit	5
Commercial | Multifamily | Impact of ASC 326 Adoption
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans			1,184,000
Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan maturities	30 years
Loan to value ratio	0.80
Residential | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans	$ 618,000		199,000	148,000	102,000
Loan maturities	1 year
Residential | Construction | Impact of ASC 326 Adoption
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans			735,000
Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans	$ 626,000		1,029,000	$ 925,000	$ 1,211,000
Loan maturities	300 months
Loan to value ratio	0.80
Home Equity | Impact of ASC 326 Adoption
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses on loans			$ (456,000)