Loans and Asset Quality Information - Schedule of Nonaccrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	$ 12,948
Nonaccrual Loans with an Allowance	21,748
Nonaccrual loans	34,696	$ 35,076
Commercial, financial, and agricultural
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	3,947
Nonaccrual Loans with an Allowance	8,205
Nonaccrual loans	12,152	9,681
Real estate, commercial | Real estate – construction, land development & other land loans
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	495
Nonaccrual Loans with an Allowance	137
Nonaccrual loans	632	643
Real estate, commercial | Real estate – mortgage – commercial and other
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	7,648
Nonaccrual Loans with an Allowance	8,583
Nonaccrual loans	16,231	17,191
Real estate, mortgage | Real estate – mortgage – residential (1-4 family) first mortgages
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	858
Nonaccrual Loans with an Allowance	4,040
Nonaccrual loans	4,898	6,048
Real estate, mortgage | Real estate – mortgage – home equity loans / lines of credit
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	0
Nonaccrual Loans with an Allowance	694
Nonaccrual loans	694	1,333
Consumer loans
Loans and Leases Receivable Disclosure [Line Items]
Nonaccrual Loans with No Allowance	0
Nonaccrual Loans with an Allowance	89
Nonaccrual loans	$ 89	$ 180