Summary of Significant Accounting Policies - Additional Information (Details)		12 Months Ended
	Jan. 01, 2023 USD ($)	Dec. 31, 2023 USD ($) Segment	Dec. 31, 2022 USD ($)
Accounting Policies [Line Items]
Accrued interest on loans		$ 14,091,000	$ 10,083,000
Allowance for credit losses recognized If possessed with unconditional right to cancel obligation		$ 0
Percentage of loan portfolio secured by real estate		81.00%
Amount recognized on purchased with credit deterioration loans	$ 48,000
Number of reportable segment | Segment		1
Cumulative adjustment to retained earnings	24,000
Increase in the allowance of credit loss	80,000
Increase in deferred tax assets	$ 8,000
Loans Receivable
Accounting Policies [Line Items]
Accrued interest on loans		$ 4,000	$ 59,000
Building
Accounting Policies [Line Items]
Premises and equipment, estimated useful life		40 years
Maximum
Accounting Policies [Line Items]
Interest-bearing deposits maturity		1 year
Percentage of capital on secured loan amount issued		20.00%
Secured loan amount		$ 61,000,000
Percentage of capital on unsecured loan amount issued		10.00%
Unsecured loan amount		$ 30,000,000
Maximum | Core Deposits
Accounting Policies [Line Items]
Intangible assets, estimated useful life		10 years
Maximum | Furniture And Equipment
Accounting Policies [Line Items]
Premises and equipment, estimated useful life		25 years
Minimum | Core Deposits
Accounting Policies [Line Items]
Intangible assets, estimated useful life		3 years
Minimum | Furniture And Equipment
Accounting Policies [Line Items]
Premises and equipment, estimated useful life		3 years