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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 and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Financing Receivable, Allowance For Credit Loss, Allowance For Loan Losses Allocated By [Abstract]

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No definition available.

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LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Ending Loan Balance Individually Evaluated for Impairment (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans allocated by:
Individually evaluated for impairment	$ 11,636	$ 6,297
Collectively evaluated for impairment	1,632,694	1,241,360
Total Loans	1,644,330	1,247,657
Allowance for loan losses allocated by:
Individually evaluated for impairment	36	38
Collectively evaluated for impairment	14,619	13,976
Allowance for loan losses, Total	14,655	14,014	$ 12,796	$ 12,775
Commercial
Loans allocated by:
Individually evaluated for impairment	8,215	2,606
Collectively evaluated for impairment	1,069,664	820,520
Total Loans	1,077,879	823,126
Allowance for loan losses allocated by:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	11,049	9,447
Allowance for loan losses, Total	11,049	9,447
Consumer
Loans allocated by:
Individually evaluated for impairment	3,421	3,691
Collectively evaluated for impairment	563,030	420,840
Total Loans	566,451	424,531
Allowance for loan losses allocated by:
Individually evaluated for impairment	36	38
Collectively evaluated for impairment	3,430	3,959
Allowance for loan losses, Total	3,466	3,997
Unallocated
Loans allocated by:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Total Loans	0	0
Allowance for loan losses allocated by:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	140	570
Allowance for loan losses, Total	140	570
Commercial Real Estate \| Commercial
Loans allocated by:
Individually evaluated for impairment	6,452	2,320
Collectively evaluated for impairment	752,413	559,424
Total Loans	758,865	561,744
Allowance for loan losses allocated by:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	7,634	6,876
Allowance for loan losses, Total	7,634	6,876
Acquisition and Development \| Commercial
Loans allocated by:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	57,403	49,436
Total Loans	57,403	49,436
Allowance for loan losses allocated by:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	959	817
Allowance for loan losses, Total	959	817
Commercial and Industrial
Loans allocated by:
Total Loans	214,554	160,964
Commercial and Industrial \| Commercial
Loans allocated by:
Individually evaluated for impairment	1,763	286
Collectively evaluated for impairment	212,791	160,678
Total Loans	214,554	160,964
Allowance for loan losses allocated by:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	2,356	1,656
Allowance for loan losses, Total	2,356	1,656
Municipal
Loans allocated by:
Total Loans	47,057	50,982
Municipal \| Commercial
Loans allocated by:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	47,057	50,982
Total Loans	47,057	50,982
Allowance for loan losses allocated by:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	100	98
Allowance for loan losses, Total	100	98
Residential Mortgage \| Consumer
Loans allocated by:
Individually evaluated for impairment	3,336	3,691
Collectively evaluated for impairment	512,380	387,429
Total Loans	515,716	391,120
Allowance for loan losses allocated by:
Individually evaluated for impairment	36	38
Collectively evaluated for impairment	3,111	3,715
Allowance for loan losses, Total	3,147	3,753
Installment and other loans
Loans allocated by:
Total Loans	50,735	33,411
Installment and other loans \| Consumer
Loans allocated by:
Individually evaluated for impairment	85	0
Collectively evaluated for impairment	50,650	33,411
Total Loans	50,735	33,411
Allowance for loan losses allocated by:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	319	244
Allowance for loan losses, Total	$ 319	$ 244