Allowance for Loan Losses - Segregated by Class of Loan (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 12,910	$ 12,127
Charge-offs	(108)	(26)
Recoveries	67	92
Provision	50	500
Ending balance	12,919	12,693
Period end amount allocated to
Individually evaluated for impairment	427		$ 256
Collectively evaluated for impairment	12,395		12,534
Purchase credit impaired	427		256
Loans
Individually evaluated for impairment	9,227		8,759
Collectively evaluated for impairment	1,344,805		1,327,229
Purchase credit impaired	9,227		10,748
Loans	1,354,032		1,337,977
Purchase credit impaired
Period end amount allocated to
Purchase credit impaired	97		120
Loans
Purchase credit impaired	0		1,989
Residential real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	1,805	2,278
Charge-offs	(18)	0
Recoveries	4	66
Provision	20	67
Ending balance	1,811	2,411
Period end amount allocated to
Individually evaluated for impairment	123		108
Collectively evaluated for impairment	1,687		1,691
Purchase credit impaired	123		108
Loans
Individually evaluated for impairment	2,465		1,770
Collectively evaluated for impairment	205,221		210,757
Purchase credit impaired	2,464		1,770
Loans	207,686		212,527
Residential real estate | Purchase credit impaired
Period end amount allocated to
Purchase credit impaired	1		6
Loans
Purchase credit impaired	0		0
Commercial, financial & agricultural
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	1,083	1,713
Charge-offs	(16)	(15)
Recoveries	44	3
Provision	976	(35)
Ending balance	2,087	1,666
Period end amount allocated to
Individually evaluated for impairment	163		0
Collectively evaluated for impairment	1,924		1,083
Purchase credit impaired	163		0
Loans
Individually evaluated for impairment	297		75
Collectively evaluated for impairment	153,941		153,973
Purchase credit impaired	297		75
Loans	154,238		154,048
Commercial, financial & agricultural | Purchase credit impaired
Period end amount allocated to
Purchase credit impaired	0		0
Loans
Purchase credit impaired	0		0
Consumer and other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	1,204	243
Charge-offs	(16)	(11)
Recoveries	6	8
Provision	(867)	195
Ending balance	327	435
Period end amount allocated to
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	231		1,108
Purchase credit impaired	0		0
Loans
Individually evaluated for impairment	2		0
Collectively evaluated for impairment	18,200		18,491
Purchase credit impaired	2		73
Loans	18,202		18,564
Consumer and other | Purchase credit impaired
Period end amount allocated to
Purchase credit impaired	96		96
Loans
Purchase credit impaired	0		73
Construction, land and land development
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	1,127	1,013
Charge-offs	0	0
Recoveries	6	15
Provision	206	25
Ending balance	1,339	1,053
Period end amount allocated to
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	1,339		1,127
Purchase credit impaired	0		0
Loans
Individually evaluated for impairment	0		62
Collectively evaluated for impairment	170,911		165,384
Purchase credit impaired	0		62
Loans	170,911		165,446
Construction, land and land development | Purchase credit impaired
Period end amount allocated to
Purchase credit impaired	0		0
Loans
Purchase credit impaired	0		0
Other commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance	7,691	6,880
Charge-offs	(58)	0
Recoveries	7	0
Provision	(285)	248
Ending balance	7,355	$ 7,128
Period end amount allocated to
Individually evaluated for impairment	141		148
Collectively evaluated for impairment	7,214		7,525
Purchase credit impaired	141		148
Loans
Individually evaluated for impairment	6,463		6,852
Collectively evaluated for impairment	796,532		778,624
Purchase credit impaired	6,464		8,768
Loans	802,995		787,392
Other commercial real estate | Purchase credit impaired
Period end amount allocated to
Purchase credit impaired	0		18
Loans
Purchase credit impaired	$ 0		$ 1,916