Loans - Impaired Loan Data (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Unpaid Contractual Principal Balance
With No Related Allowance Recorded	$ 8,193	$ 8,298
With An Allowance Recorded	1,834	1,115
Loans Including Purchased Credit Impaired Loans	11,574	11,612
Recorded Investment
With No Related Allowance Recorded	8,193	7,503
With An Allowance Recorded	1,830	1,256
Loans Including Purchased Credit Impaired Loans	11,570	10,748
Related Allowance
With An Allowance Recorded	536	256
Total Impaired Loans	536	376
Average Recorded Investment
With No Related Allowance Recorded	7,482	13,563
With An Allowance Recorded	2,865	5,538
Loans Including Purchased Credit Impaired Loans	11,582	20,068
Purchase credit impaired
Unpaid Contractual Principal Balance
Loans Including Purchased Credit Impaired Loans	1,547	2,199
Recorded Investment
Loans Including Purchased Credit Impaired Loans	1,547	1,989
Related Allowance
With An Allowance Recorded	0	120
Purchased Credit Impaired Loans	0	120
Average Recorded Investment
Loans Including Purchased Credit Impaired Loans	1,235	967
Residential real estate
Unpaid Contractual Principal Balance
With No Related Allowance Recorded	521	958
With An Allowance Recorded	595	685
Loans Including Purchased Credit Impaired Loans	1,165	1,647
Recorded Investment
With No Related Allowance Recorded	521	997
With An Allowance Recorded	595	773
Loans Including Purchased Credit Impaired Loans	1,165	1,770
Related Allowance
With An Allowance Recorded	57	108
Total Impaired Loans	57	114
Average Recorded Investment
With No Related Allowance Recorded	942	1,083
With An Allowance Recorded	255	1,029
Loans Including Purchased Credit Impaired Loans	1,213	2,119
Residential real estate | Purchase credit impaired
Unpaid Contractual Principal Balance
Loans Including Purchased Credit Impaired Loans	49	4
Recorded Investment
Loans Including Purchased Credit Impaired Loans	49	0
Related Allowance
With An Allowance Recorded	0	6
Purchased Credit Impaired Loans	0	6
Average Recorded Investment
Loans Including Purchased Credit Impaired Loans	16	7
Commercial, financial & agricultural
Unpaid Contractual Principal Balance
With No Related Allowance Recorded	418	75
With An Allowance Recorded	822	0
Loans Including Purchased Credit Impaired Loans	1,240	75
Recorded Investment
With No Related Allowance Recorded	418	75
With An Allowance Recorded	818	0
Loans Including Purchased Credit Impaired Loans	1,236	75
Related Allowance
With An Allowance Recorded	350	0
Total Impaired Loans	350	0
Average Recorded Investment
With No Related Allowance Recorded	168	56
With An Allowance Recorded	888	79
Loans Including Purchased Credit Impaired Loans	1,068	170
Commercial, financial & agricultural | Purchase credit impaired
Unpaid Contractual Principal Balance
Loans Including Purchased Credit Impaired Loans	0	0
Recorded Investment
Loans Including Purchased Credit Impaired Loans	0	0
Related Allowance
With An Allowance Recorded	0	0
Purchased Credit Impaired Loans	0	0
Average Recorded Investment
Loans Including Purchased Credit Impaired Loans	12	35
Consumer and other
Unpaid Contractual Principal Balance
With No Related Allowance Recorded	1	0
With An Allowance Recorded	0	0
Loans Including Purchased Credit Impaired Loans	70	192
Recorded Investment
With No Related Allowance Recorded	1	0
With An Allowance Recorded	0	0
Loans Including Purchased Credit Impaired Loans	70	73
Related Allowance
With An Allowance Recorded	0	0
Total Impaired Loans	0	96
Average Recorded Investment
With No Related Allowance Recorded	1	0
With An Allowance Recorded	0	1
Loans Including Purchased Credit Impaired Loans	138	73
Consumer and other | Purchase credit impaired
Unpaid Contractual Principal Balance
Loans Including Purchased Credit Impaired Loans	69	192
Recorded Investment
Loans Including Purchased Credit Impaired Loans	69	73
Related Allowance
With An Allowance Recorded	0	96
Purchased Credit Impaired Loans	0	96
Average Recorded Investment
Loans Including Purchased Credit Impaired Loans	137	72
Construction, land and land development
Unpaid Contractual Principal Balance
With No Related Allowance Recorded	0	62
With An Allowance Recorded	0	0
Loans Including Purchased Credit Impaired Loans	0	62
Recorded Investment
With No Related Allowance Recorded	0	62
With An Allowance Recorded	0	0
Loans Including Purchased Credit Impaired Loans	0	62
Related Allowance
With An Allowance Recorded	0	0
Total Impaired Loans	0	0
Average Recorded Investment
With No Related Allowance Recorded	31	4,311
With An Allowance Recorded	0	0
Loans Including Purchased Credit Impaired Loans	31	4,362
Construction, land and land development | Purchase credit impaired
Unpaid Contractual Principal Balance
Loans Including Purchased Credit Impaired Loans	0	0
Recorded Investment
Loans Including Purchased Credit Impaired Loans	0	0
Related Allowance
With An Allowance Recorded	0	0
Purchased Credit Impaired Loans	0	0
Average Recorded Investment
Loans Including Purchased Credit Impaired Loans	0	51
Commercial real estate
Unpaid Contractual Principal Balance
With No Related Allowance Recorded	7,253	7,203
With An Allowance Recorded	417	430
Loans Including Purchased Credit Impaired Loans	9,099	9,636
Recorded Investment
With No Related Allowance Recorded	7,253	6,369
With An Allowance Recorded	417	483
Loans Including Purchased Credit Impaired Loans	9,099	8,768
Related Allowance
With An Allowance Recorded	129	148
Total Impaired Loans	129	166
Average Recorded Investment
With No Related Allowance Recorded	6,340	8,113
With An Allowance Recorded	1,722	4,429
Loans Including Purchased Credit Impaired Loans	9,132	13,344
Commercial real estate | Purchase credit impaired
Unpaid Contractual Principal Balance
Loans Including Purchased Credit Impaired Loans	1,429	2,003
Recorded Investment
Loans Including Purchased Credit Impaired Loans	1,429	1,916
Related Allowance
With An Allowance Recorded	0	18
Purchased Credit Impaired Loans	0	18
Average Recorded Investment
Loans Including Purchased Credit Impaired Loans	$ 1,070	$ 802