Loans and Leases - Nonperforming Loans and Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Nonperforming Loans And Leases [Line Items]
Nonaccrual loans and lease	$ 15,087	$ 13,353
Loans and lease 90 days or more past due and accruing interest	55	875
Total nonperforming loans and leases	15,142	14,228
Commercial Financial And Agricultural [Member]
Nonperforming Loans And Leases [Line Items]
Nonaccrual loans and lease	1,217	5,072
Loans and lease 90 days or more past due and accruing interest	0	0
Total nonperforming loans and leases	1,217	5,072
Real-Estate Commercial [Member]
Nonperforming Loans And Leases [Line Items]
Nonaccrual loans and lease	4,405	4,537
Loans and lease 90 days or more past due and accruing interest	0	20
Total nonperforming loans and leases	4,405	4,557
Real-Estate Construction [Member]
Nonperforming Loans And Leases [Line Items]
Nonaccrual loans and lease	6,202	0
Loans and lease 90 days or more past due and accruing interest	0	0
Total nonperforming loans and leases	6,202	0
Real Estate Residential Secured For Business Purpose [Member]
Nonperforming Loans And Leases [Line Items]
Nonaccrual loans and lease	1,032	1,013
Loans and lease 90 days or more past due and accruing interest	0	263
Total nonperforming loans and leases	1,032	1,276
Real Estate-Residential Secured For Personal Purpose [Member]
Nonperforming Loans And Leases [Line Items]
Nonaccrual loans and lease	1,154	1,989
Loans and lease 90 days or more past due and accruing interest	0	319
Total nonperforming loans and leases	1,154	2,308
Real Estate Home Equity Secured For Personal Purpose [Member]
Nonperforming Loans And Leases [Line Items]
Nonaccrual loans and lease	884	740
Loans and lease 90 days or more past due and accruing interest	0	0
Total nonperforming loans and leases	884	740
Loans to Individuals [Member]
Nonperforming Loans And Leases [Line Items]
Nonaccrual loans and lease	0	0
Loans and lease 90 days or more past due and accruing interest	13	39
Total nonperforming loans and leases	13	39
Lease Financings [Member]
Nonperforming Loans And Leases [Line Items]
Nonaccrual loans and lease	193	2
Loans and lease 90 days or more past due and accruing interest	42	234
Total nonperforming loans and leases	$ 235	$ 236