Loans, Allowance for Credit Losses, and Asset Quality Information - Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	$ 21,678	$ 20,033
Residential Property
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	161	871
Business Assets
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	9,508	7,886
Land
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	928	533
Commercial Property
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	11,081	10,743
Commercial, financial, and agricultural | Accruing 30-59 Days Past Due
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	9,508	7,886
Commercial, financial, and agricultural | Accruing 30-59 Days Past Due | Residential Property
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	0	0
Commercial, financial, and agricultural | Accruing 30-59 Days Past Due | Business Assets
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	9,508	7,886
Commercial, financial, and agricultural | Accruing 30-59 Days Past Due | Land
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	0	0
Commercial, financial, and agricultural | Accruing 30-59 Days Past Due | Commercial Property
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	0	0
Real estate, commercial | Accruing 30-59 Days Past Due | Real estate – construction, land development & other land loans
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	928	533
Real estate, commercial | Accruing 30-59 Days Past Due | Real estate – construction, land development & other land loans | Residential Property
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	0	0
Real estate, commercial | Accruing 30-59 Days Past Due | Real estate – construction, land development & other land loans | Business Assets
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	0	0
Real estate, commercial | Accruing 30-59 Days Past Due | Real estate – construction, land development & other land loans | Land
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	928	533
Real estate, commercial | Accruing 30-59 Days Past Due | Real estate – construction, land development & other land loans | Commercial Property
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	0	0
Real estate, commercial | Accruing 30-59 Days Past Due | Real estate – mortgage – commercial and other
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	11,081	10,743
Real estate, commercial | Accruing 30-59 Days Past Due | Real estate – mortgage – commercial and other | Residential Property
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	0	0
Real estate, commercial | Accruing 30-59 Days Past Due | Real estate – mortgage – commercial and other | Business Assets
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	0	0
Real estate, commercial | Accruing 30-59 Days Past Due | Real estate – mortgage – commercial and other | Land
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	0	0
Real estate, commercial | Accruing 30-59 Days Past Due | Real estate – mortgage – commercial and other | Commercial Property
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	11,081	10,743
Real estate, mortgage | Accruing 30-59 Days Past Due | Real estate – mortgage – residential (1-4 family) first mortgages
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	161	871
Real estate, mortgage | Accruing 30-59 Days Past Due | Real estate – mortgage – residential (1-4 family) first mortgages | Residential Property
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	161	871
Real estate, mortgage | Accruing 30-59 Days Past Due | Real estate – mortgage – residential (1-4 family) first mortgages | Business Assets
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	0	0
Real estate, mortgage | Accruing 30-59 Days Past Due | Real estate – mortgage – residential (1-4 family) first mortgages | Land
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	0	0
Real estate, mortgage | Accruing 30-59 Days Past Due | Real estate – mortgage – residential (1-4 family) first mortgages | Commercial Property
Loans and Leases Receivable Disclosure [Line Items]
Total Collateral-Dependent Loans	$ 0	$ 0