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Loans and Allowance for Loan Losses - Nonperforming Assets by Asset Class (Details) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
Nonperforming Assets [Line Items]
Restructured nonaccrual loans		$ 1,000	$ 1,100
Nonperforming Assets
Nonperforming Assets [Line Items]
Nonaccrual loans	[1]	2,357	2,536
Accruing loans past due more than 90 days		0	0
TDR loans		9,098	9,073
OREO		0	0
Repossessed assets		0	0
Total nonperforming assets		11,455	11,609
Nonperforming Assets | Construction Real Estate Loans
Nonperforming Assets [Line Items]
Nonaccrual loans		4	57
Nonperforming Assets | 1-4 Family Residential Real Estate Loans
Nonperforming Assets [Line Items]
Nonaccrual loans		709	969
Nonperforming Assets | Commercial Real Estate Loans
Nonperforming Assets [Line Items]
Nonaccrual loans		574	668
Nonperforming Assets | Commercial loans
Nonperforming Assets [Line Items]
Nonaccrual loans		1,029	815
Nonperforming Assets | Loans to individuals
Nonperforming Assets [Line Items]
Nonaccrual loans		$ 41	$ 27
[1] Includes $1.0 million and $1.1 million of TDR loans as of March 31, 2022 and December 31, 2021, respectively.

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