Loans and Allowance for Credit Losses - Loans Restructured as TDRs, Excluding Loans Acquired, Segregated by Class of Loans (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loan modifications | loan	4	4
Balance Prior to TDR	$ 760,000	$ 1,058,000
Financial Impact on Date of Restructure		$ 5,129
Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loan modifications | loan	4	4
Balance Prior to TDR	$ 760,000	$ 1,058,000
Balance	730,000	963,000
Financial Impact on Date of Restructure	0	0
Real Estate | Change in Maturity Date
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	0	0
Real Estate | Change in Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	$ 730,000	$ 963,000
Real Estate | Single family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loan modifications | loan	4	3
Balance Prior to TDR	$ 760,000	$ 274,000
Balance	730,000	197,000
Financial Impact on Date of Restructure	0	0
Real Estate | Single family residential | Change in Maturity Date
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	0	0
Real Estate | Single family residential | Change in Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	$ 730,000	$ 197,000
Real Estate | Other commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loan modifications | loan	0	1
Balance Prior to TDR	$ 0	$ 784,000
Balance	0	766,000
Financial Impact on Date of Restructure	0	0
Real Estate | Other commercial | Change in Maturity Date
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	0	0
Real Estate | Other commercial | Change in Rate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance	$ 0	$ 766,000