Commitments and Contingent Liabilities - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Percentage Of Commercial And industrial Loans to Total Loans
Cash Deposit FDIC Insurance Limit	$ 250,000		$ 250,000
Uninsured deposits at financial institutions	2,100,000		2,100,000		$ 11,000,000
Commitments for loans	626,800,000		626,800,000		620,000,000
Reserve for unfunded loan commitments	430,000		430,000		$ 380,000
Rent and equipment expense	$ 469,000	$ 521,000	1,500,000	$ 1,600,000
Outstanding unfunded commitments for loans fixed rate of interest amount			41,975,000
Outstanding unfunded commitments for loans fixed rate of interest amount			$ 584,800,000