Loans - Impaired Loan Data (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Unpaid Contractual Principal Balance
With No Related Allowance Recorded	$ 3,856
With An Allowance Recorded	474
Loans Including Purchased Credit Impaired Loans	5,128
Recorded Investment
With No Related Allowance Recorded	3,856
With An Allowance Recorded	474
Loans Including Purchased Credit Impaired Loans	5,128
Related Allowance
With An Allowance Recorded	44
Total Impaired Loans	77
Average Recorded Investment
With No Related Allowance Recorded	6,198
With An Allowance Recorded	1,637
Loans Including Purchased Credit Impaired Loans	8,673
Purchased Credit Impaired Loans
Unpaid Contractual Principal Balance
Loans Including Purchased Credit Impaired Loans	798
Recorded Investment
Loans Including Purchased Credit Impaired Loans	798
Related Allowance
With An Allowance Recorded	33
Purchased Credit Impaired Loans	33
Average Recorded Investment
Loans Including Purchased Credit Impaired Loans	838
Residential real estate
Unpaid Contractual Principal Balance
With No Related Allowance Recorded	62
With An Allowance Recorded	0
Loans Including Purchased Credit Impaired Loans	62
Recorded Investment
With No Related Allowance Recorded	62
With An Allowance Recorded	0
Loans Including Purchased Credit Impaired Loans	62
Related Allowance
With An Allowance Recorded	0
Total Impaired Loans	0
Average Recorded Investment
With No Related Allowance Recorded	570
With An Allowance Recorded	588
Loans Including Purchased Credit Impaired Loans	1,171
Residential real estate | Purchased Credit Impaired Loans
Unpaid Contractual Principal Balance
Loans Including Purchased Credit Impaired Loans	0
Recorded Investment
Loans Including Purchased Credit Impaired Loans	0
Related Allowance
With An Allowance Recorded	0
Purchased Credit Impaired Loans	0
Average Recorded Investment
Loans Including Purchased Credit Impaired Loans	13
Commercial, financial & agricultural
Unpaid Contractual Principal Balance
With No Related Allowance Recorded	0
With An Allowance Recorded	0
Loans Including Purchased Credit Impaired Loans	0
Recorded Investment
With No Related Allowance Recorded	0
With An Allowance Recorded	0
Loans Including Purchased Credit Impaired Loans	0
Related Allowance
With An Allowance Recorded	0
Total Impaired Loans	0
Average Recorded Investment
With No Related Allowance Recorded	306
With An Allowance Recorded	369
Loans Including Purchased Credit Impaired Loans	675
Commercial, financial & agricultural | Purchased Credit Impaired Loans
Unpaid Contractual Principal Balance
Loans Including Purchased Credit Impaired Loans	0
Recorded Investment
Loans Including Purchased Credit Impaired Loans	0
Related Allowance
With An Allowance Recorded	0
Purchased Credit Impaired Loans	0
Average Recorded Investment
Loans Including Purchased Credit Impaired Loans	0
Consumer and other
Unpaid Contractual Principal Balance
With No Related Allowance Recorded	0
With An Allowance Recorded	0
Loans Including Purchased Credit Impaired Loans	0
Recorded Investment
With No Related Allowance Recorded	0
With An Allowance Recorded	0
Loans Including Purchased Credit Impaired Loans	0
Related Allowance
With An Allowance Recorded	0
Total Impaired Loans	0
Average Recorded Investment
With No Related Allowance Recorded	1
With An Allowance Recorded	0
Loans Including Purchased Credit Impaired Loans	66
Consumer and other | Purchased Credit Impaired Loans
Unpaid Contractual Principal Balance
Loans Including Purchased Credit Impaired Loans	0
Recorded Investment
Loans Including Purchased Credit Impaired Loans	0
Related Allowance
With An Allowance Recorded	0
Purchased Credit Impaired Loans	0
Average Recorded Investment
Loans Including Purchased Credit Impaired Loans	65
Construction, land & land development
Unpaid Contractual Principal Balance
With No Related Allowance Recorded	40
With An Allowance Recorded	474
Loans Including Purchased Credit Impaired Loans	514
Recorded Investment
With No Related Allowance Recorded	40
With An Allowance Recorded	474
Loans Including Purchased Credit Impaired Loans	514
Related Allowance
With An Allowance Recorded	44
Total Impaired Loans	44
Average Recorded Investment
With No Related Allowance Recorded	10
With An Allowance Recorded	177
Loans Including Purchased Credit Impaired Loans	187
Construction, land & land development | Purchased Credit Impaired Loans
Unpaid Contractual Principal Balance
Loans Including Purchased Credit Impaired Loans	0
Recorded Investment
Loans Including Purchased Credit Impaired Loans	0
Related Allowance
With An Allowance Recorded	0
Purchased Credit Impaired Loans	0
Average Recorded Investment
Loans Including Purchased Credit Impaired Loans	0
Other commercial real estate
Unpaid Contractual Principal Balance
With No Related Allowance Recorded	3,754
With An Allowance Recorded	0
Loans Including Purchased Credit Impaired Loans	4,552
Recorded Investment
With No Related Allowance Recorded	3,754
With An Allowance Recorded	0
Loans Including Purchased Credit Impaired Loans	4,552
Related Allowance
With An Allowance Recorded	0
Total Impaired Loans	33
Average Recorded Investment
With No Related Allowance Recorded	5,311
With An Allowance Recorded	503
Loans Including Purchased Credit Impaired Loans	6,574
Other commercial real estate | Purchased Credit Impaired Loans
Unpaid Contractual Principal Balance
Loans Including Purchased Credit Impaired Loans	798
Recorded Investment
Loans Including Purchased Credit Impaired Loans	798
Related Allowance
With An Allowance Recorded	33
Purchased Credit Impaired Loans	33
Average Recorded Investment
Loans Including Purchased Credit Impaired Loans	$ 760