Disclosures of Fair Values of Financial Instruments - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Allowance for Credit Losses	$ 738,000
Other real estate owned	4,261,000	$ 4,984,000
Mortgage servicing rights (MSR) impairment (recovery)	0	48,000
Mortgage Servicing Rights
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Finite-lived intangible assets, net	331,000	420,000	$ 516,000
Mortgage servicing rights (MSR) impairment (recovery)	(108,000)	(544,000)
Fair Value, Nonrecurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Carrying amount of loans with a specific allowance	3,300,000	8,000,000.0
Fair value of loans with a specific allowance	2,500,000	6,800,000
Allowance for Credit Losses	800,000	1,200,000
Fair Value, Nonrecurring | Mortgage Servicing Rights
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Indefinite-lived contractual rights	0	468,000
Finite-lived intangible assets, net	0	420,000
Fair Value, Nonrecurring | Carrying Amount
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other real estate owned	4,300,000	5,000,000.0
Fair Value, Nonrecurring | Fair Value
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other real estate owned	$ 0	$ 2,100,000