Presentation of Financial Information (Details) - USD ($)		3 Months Ended	9 Months Ended
	Jan. 01, 2023	Sep. 30, 2023	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued interest receivables for loans		$ 11,500,000	$ 11,500,000	$ 9,800,000
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Other Assets	Other Assets	Other Assets
Retained earnings		$ 168,271,000	$ 168,271,000	$ 156,545,000
Allowance for loan losses	$ 31,989,000			23,334,000	$ 22,769,000	$ 21,938,000	$ 19,352,000
Allowance for off balance sheet credit		2,300,000	2,300,000	85,000
Allowance recognized on loans purchased with credit deterioration	2,898,000
Entities minimum amount of financing receivable to evaluate individually		500,000	500,000
Provision for credit losses, HTM		0	0
Other Liabilities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for off balance sheet credit		$ 2,300,000	$ 2,300,000
Cumulative Effect, Period of Adoption, Adjustment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for off balance sheet credit	3,000,000.0
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Retained earnings	6,600,000
Allowance for loan losses	5,757,000			$ 5,757,000
Aggregate allowance adjustment	8,700,000
Allowance for off balance sheet credit	3,000,000.0
Increase in deferred tax assets	2,300,000
Allowance recognized on loans purchased with credit deterioration	$ 2,900,000