Allowance for Loan Losses - Segregated by Class of Loan (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	$ 8,384	$ 6,589	$ 6,863	$ 7,277
Charge-offs	(384)	(155)	(897)	(1,099)
Recoveries	89	176	167	301
Provision	2,200	179	4,156	310
Ending balance	10,289	6,789	10,289	6,789
Period end amount allocated to
Individually evaluated for impairment	2,839		2,839		$ 3,149
Collectively evaluated for impairment	7,355		7,355		3,708
Loans
Individually evaluated for impairment	24,382		24,382		23,808
Collectively evaluated for impairment	1,089,338		1,089,338		944,859
Loans	1,113,977		1,113,977		968,814
Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance			6
Ending balance	95		95
Loans
Loans	257		257		147
Construction, land and land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	354	20	215	131
Charge-offs	(4)	0	(4)	(29)
Recoveries	12	37	25	54
Provision	397	(45)	523	(144)
Ending balance	759	12	759	12
Period end amount allocated to
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	759		759		215
Loans
Individually evaluated for impairment	66		66		67
Collectively evaluated for impairment	131,649		131,649		95,965
Loans	131,797		131,797		96,097
Construction, land and land development \| Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance			0
Ending balance	0		0
Loans
Loans	82		82		65
Other commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	4,821	5,062	3,908	5,251
Charge-offs	0	0	(30)	(119)
Recoveries	21	7	26	41
Provision	869	(639)	1,807	(743)
Ending balance	5,711	4,430	5,711	4,430
Period end amount allocated to
Individually evaluated for impairment	2,022		2,022		1,939
Collectively evaluated for impairment	3,689		3,689		1,969
Loans
Individually evaluated for impairment	20,297		20,297		18,024
Collectively evaluated for impairment	497,808		497,808		522,181
Loans	518,141		518,141		540,239
Other commercial real estate \| Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance			0
Ending balance	0		0
Loans
Loans	36		36		34
Residential real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	1,203	949	980	1,181
Charge-offs	(16)	(18)	(80)	(647)
Recoveries	6	110	10	159
Provision	438	(196)	721	152
Ending balance	1,631	845	1,631	845
Period end amount allocated to
Individually evaluated for impairment	115		115		137
Collectively evaluated for impairment	1,506		1,506		837
Loans
Individually evaluated for impairment	2,981		2,981		3,471
Collectively evaluated for impairment	185,347		185,347		191,314
Loans	188,339		188,339		194,796
Residential real estate \| Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance			6
Ending balance	10		10
Loans
Loans	11		11		11
Commercial, financial, & agricultural
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	1,780	466	1,657	618
Charge-offs	0	(28)	(68)	(125)
Recoveries	19	11	20	17
Provision	114	972	304	911
Ending balance	1,913	1,421	1,913	1,421
Period end amount allocated to
Individually evaluated for impairment	702		702		1,073
Collectively evaluated for impairment	1,211		1,211		584
Loans
Individually evaluated for impairment	1,038		1,038		2,246
Collectively evaluated for impairment	249,835		249,835		112,077
Loans	250,915		250,915		114,360
Commercial, financial, & agricultural \| Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance			0
Ending balance	0		0
Loans
Loans	42		42		37
Consumer and other
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	226	92	103	96
Charge-offs	(364)	(109)	(715)	(179)
Recoveries	31	11	86	30
Provision	382	87	801	134
Ending balance	275	$ 81	275	$ 81
Period end amount allocated to
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	190		190		103
Loans
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	24,699		24,699		23,322
Loans	24,785		24,785		23,322
Consumer and other \| Financial Asset Acquired with Credit Deterioration
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance			0
Ending balance	85		85
Loans
Loans	$ 86		$ 86		$ 0

Loans And Leases, Additional Information

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Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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