Loans and Allowance for Credit Losses - Additional Information (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2023 USD ($) Loan	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($) Loan
Accounts Notes And Loans Receivable [Line Items]
Amount of interest income collected on impaired loans		$ 120,000
Modifications of loans to borrowers experiencing financial difficulty	$ 0
Restructured loans subsequent payment default	0
Amount of income that would have been accrued for loans on non-accrual	339,000	$ 482,000
Loans unaccreted discounts and deferred fees net of deferred costs	$ 9,400,000		$ 7,800,000
ASU 2022-02
Accounts Notes And Loans Receivable [Line Items]
Change in accounting principle, ASU, Adopted [true false]	true
Change in accounting principle, ASU, Adoption date	Jan. 01, 2023
COVID-19
Accounts Notes And Loans Receivable [Line Items]
Number of outstanding loan balances subject to deferral and modification agreements | Loan	221		261
Outstanding loan balance amount subject to deferral and modification agreements	$ 143,000,000.0		$ 150,700,000
Description of loan deferments	Certain borrowers were unable to meet their contractual payment obligations because of the adverse effects of COVID-19. During March of 2020 and to help mitigate these effects, the Company began offering deferral modifications of principal and/or interest payments for varying periods, but typically no more than 90 days. After 90 days, customers could apply for an additional deferral, and a small portion of our customers requested such an additional deferral. At March 31, 2023 and December 31, 2022, the Company had approximately 221and 261 loans totaling $143.0 million and $150.7 million, respectively, in outstanding loan balances that were subject to deferral and modification agreements due to COVID-19 whereby the principal and/or interest payments were deferred to the end of each loan term. Subsequent to the approved deferral period, customers resumed their regular payments. The Coronavirus Aid, Relief, and Economic Security Act provides banks an option to elect to not account for certain loan modifications related to COVID-19 as TDRs if the borrowers were not more than 30 days past due at December 31, 2019. In the absence of other intervening factors, such short-term modifications made on a good faith basis are not categorized as TDRs, nor are loans granted payment deferrals related to COVID-19 reported as past due or placed on non-accrual status.
Accrued interest receivable related to loans	$ 3,200,000		$ 3,300,000