Loans, Allowance for Credit Losses, and Asset Quality Information - Schedule of Aging Modifications (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	$ 1,990
Accruing 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	156
Accruing 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	79
Accruing 90 Days or More Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Commercial, financial, and agricultural | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	1,363
Commercial, financial, and agricultural | Accruing 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	156
Commercial, financial, and agricultural | Accruing 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	79
Commercial, financial, and agricultural | Accruing 90 Days or More Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Real estate, commercial | Real estate – construction, land development & other land loans | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	144
Real estate, commercial | Real estate – construction, land development & other land loans | Accruing 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Real estate, commercial | Real estate – construction, land development & other land loans | Accruing 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Real estate, commercial | Real estate – construction, land development & other land loans | Accruing 90 Days or More Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Real estate, commercial | Real estate mortgage – commercial and other | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	104
Real estate, commercial | Real estate mortgage – commercial and other | Accruing 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Real estate, commercial | Real estate mortgage – commercial and other | Accruing 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Real estate, commercial | Real estate mortgage – commercial and other | Accruing 90 Days or More Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Real estate, mortgage | Real estate mortgage – residential (1-4 family) first mortgages | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	48
Real estate, mortgage | Real estate mortgage – residential (1-4 family) first mortgages | Accruing 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Real estate, mortgage | Real estate mortgage – residential (1-4 family) first mortgages | Accruing 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Real estate, mortgage | Real estate mortgage – residential (1-4 family) first mortgages | Accruing 90 Days or More Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Real estate, mortgage | Real estate mortgage – home equity loans / lines of credit | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	103
Real estate, mortgage | Real estate mortgage – home equity loans / lines of credit | Accruing 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Real estate, mortgage | Real estate mortgage – home equity loans / lines of credit | Accruing 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Real estate, mortgage | Real estate mortgage – home equity loans / lines of credit | Accruing 90 Days or More Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Consumer loans | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	228
Consumer loans | Accruing 30-59 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Consumer loans | Accruing 60-89 Days Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Consumer loans | Accruing 90 Days or More Past Due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	$ 0