Loans - Summary of Financing Receivable, Past Due (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Nonaccrual	$ 3,732	$ 4,790
Total Past Due & Nonaccrual	10,789	12,904
Gross loans	1,046,380	647,572
Less: Unearned income	(7,200)	(738)
Total	1,039,180	646,834
30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Days past due	2,697	7,120
60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Days past due	3,594	625
Greater than 90 Days Past Due & Accruing [Member]
Financing Receivable, Past Due [Line Items]
Days past due	766	369
Current Loans [Member]
Financing Receivable, Past Due [Line Items]
Current Loans	1,028,391	633,930
Less: Unearned income	(7,200)	(738)
Commercial and Industrial [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	401	441
Total Past Due & Nonaccrual	1,435	2,093
Gross loans	444,718	77,728
Commercial and Industrial [Member] \| 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Days past due	901	1,652
Commercial and Industrial [Member] \| 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Days past due	86
Commercial and Industrial [Member] \| Greater than 90 Days Past Due & Accruing [Member]
Financing Receivable, Past Due [Line Items]
Days past due	47
Commercial and Industrial [Member] \| Current Loans [Member]
Financing Receivable, Past Due [Line Items]
Current Loans	443,283	75,635
Construction, Commercial [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	900	929
Total Past Due & Nonaccrual	1,118	1,749
Gross loans	49,884	38,039
Construction, Commercial [Member] \| 30-59 Days Past Due [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Days past due		820
Construction, Commercial [Member] \| 60-89 Days Past Due [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Days past due	218
Construction, Commercial [Member] \| Current Loans [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Current Loans	48,766	36,290
Construction, Residential [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due & Nonaccrual	369	241
Gross loans	19,001	26,778
Construction, Residential [Member] \| 30-59 Days Past Due [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Days past due		241
Construction, Residential [Member] \| 60-89 Days Past Due [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Days past due	369
Construction, Residential [Member] \| Current Loans [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Current Loans	18,632	26,537
Mortgage, Commercial [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	1,352	1,931
Total Past Due & Nonaccrual	4,262	5,125
Gross loans	272,778	251,824
Mortgage, Commercial [Member] \| 30-59 Days Past Due [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Days past due	440	3,194
Mortgage, Commercial [Member] \| 60-89 Days Past Due [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Days past due	2,470
Mortgage, Commercial [Member] \| Current Loans [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Current Loans	268,516	246,699
Mortgage, Residential [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	438	713
Total Past Due & Nonaccrual	1,595	1,618
Gross loans	210,679	208,494
Mortgage, Residential [Member] \| 30-59 Days Past Due [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Days past due	235	319
Mortgage, Residential [Member] \| 60-89 Days Past Due [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Days past due	219	217
Mortgage, Residential [Member] \| Greater than 90 Days Past Due & Accruing [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Days past due	703	369
Mortgage, Residential [Member] \| Current Loans [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Current Loans	209,084	206,876
Mortgage, Farmland [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Gross loans	4,176	5,507
Mortgage, Farmland [Member] \| Current Loans [Member] \| Real Estate [Member]
Financing Receivable, Past Due [Line Items]
Current Loans	4,176	5,507
Consumer Installment Loans [Member]
Financing Receivable, Past Due [Line Items]
Nonaccrual	641	776
Total Past Due & Nonaccrual	2,010	2,078
Gross loans	45,144	39,202
Consumer Installment Loans [Member] \| 30-59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Days past due	1,121	894
Consumer Installment Loans [Member] \| 60-89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Days past due	232	408
Consumer Installment Loans [Member] \| Greater than 90 Days Past Due & Accruing [Member]
Financing Receivable, Past Due [Line Items]
Days past due	16
Consumer Installment Loans [Member] \| Current Loans [Member]
Financing Receivable, Past Due [Line Items]
Current Loans	$ 43,134	$ 37,124

Financing receivable total past due and non accrual.

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Amount of financing receivable not past due.

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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