Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 6,863	$ 7,277
Charge-offs	(1,781)	(2,093)
Recoveries	487	575
Provision	6,558	1,104
Ending balance	12,127	6,863
Period-end amount allocated to:
Individually evaluated for impairment	1,925	3,149
Collectively evaluated for impairment	10,117	3,708
Purchase credit impaired	1,925	3,149
Loans:
Loans individually evaluated for impairment	27,114	23,808
Loans collectively evaluated for impairment	1,032,142	944,859
Purchased credit impaired	27,361	23,955
Ending balance	1,059,503	968,814
Financial Asset Acquired with Credit Deterioration
Period-end amount allocated to:
Purchase credit impaired	85	6
Loans:
Purchased credit impaired	247	147
Construction, land & land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	215	131
Charge-offs	(4)	(29)
Recoveries	45	82
Provision	757	31
Ending balance	1,013	215
Period-end amount allocated to:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,013	215
Purchase credit impaired	0	0
Loans:
Loans individually evaluated for impairment	6,982	67
Loans collectively evaluated for impairment	114,017	95,965
Purchased credit impaired	7,076	132
Ending balance	121,093	96,097
Construction, land & land development | Financial Asset Acquired with Credit Deterioration
Period-end amount allocated to:
Purchase credit impaired	0	0
Loans:
Purchased credit impaired	94	65
Other commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	3,908	5,251
Charge-offs	(226)	(119)
Recoveries	153	218
Provision	3,045	(1,442)
Ending balance	6,880	3,908
Period-end amount allocated to:
Individually evaluated for impairment	1,436	1,939
Collectively evaluated for impairment	5,444	1,969
Purchase credit impaired	1,436	1,939
Loans:
Loans individually evaluated for impairment	17,430	18,024
Loans collectively evaluated for impairment	502,961	522,181
Purchased credit impaired	17,430	18,058
Ending balance	520,391	540,239
Other commercial real estate | Financial Asset Acquired with Credit Deterioration
Period-end amount allocated to:
Purchase credit impaired	0	0
Loans:
Purchased credit impaired	0	34
Residential real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	980	1,181
Charge-offs	(206)	(758)
Recoveries	142	174
Provision	1,362	383
Ending balance	2,278	980
Period-end amount allocated to:
Individually evaluated for impairment	226	137
Collectively evaluated for impairment	2,048	837
Purchase credit impaired	226	137
Loans:
Loans individually evaluated for impairment	2,352	3,471
Loans collectively evaluated for impairment	180,658	191,314
Purchased credit impaired	2,363	3,482
Ending balance	183,021	194,796
Residential real estate | Financial Asset Acquired with Credit Deterioration
Period-end amount allocated to:
Purchase credit impaired	4	6
Loans:
Purchased credit impaired	11	11
Commercial, financial, & agricultural
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,657	618
Charge-offs	(242)	(403)
Recoveries	43	36
Provision	255	1,406
Ending balance	1,713	1,657
Period-end amount allocated to:
Individually evaluated for impairment	263	1,073
Collectively evaluated for impairment	1,450	584
Purchase credit impaired	263	1,073
Loans:
Loans individually evaluated for impairment	350	2,246
Loans collectively evaluated for impairment	212,984	112,077
Purchased credit impaired	396	2,283
Ending balance	213,380	114,360
Commercial, financial, & agricultural | Financial Asset Acquired with Credit Deterioration
Period-end amount allocated to:
Purchase credit impaired	0	0
Loans:
Purchased credit impaired	46	37
Consumer & other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	103	96
Charge-offs	(1,103)	(784)
Recoveries	104	65
Provision	1,139	726
Ending balance	243	103
Period-end amount allocated to:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	162	103
Purchase credit impaired	0	0
Loans:
Loans individually evaluated for impairment	0	0
Loans collectively evaluated for impairment	21,522	23,322
Purchased credit impaired	96	0
Ending balance	21,618	23,322
Consumer & other | Financial Asset Acquired with Credit Deterioration
Period-end amount allocated to:
Purchase credit impaired	81	0
Loans:
Purchased credit impaired	$ 96	$ 0