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LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Loan Portfolio, Excluding Residential Loans Held for Sale (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 1,247,657	$ 1,010,012
Acquired loans	135,009
Commercial Real Estate | Owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	129,650	116,811
Commercial Real Estate | Non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	252,794	244,491
Commercial Real Estate | Multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	78,933	53,634
Commercial Real Estate | Non-owner occupied residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	100,367	77,980
Acquisition and development | 1-4 family residential construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	7,385	11,730
Acquisition and development | Commercial and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	42,051	19,251
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	160,964	115,663
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	50,982	42,065
Residential mortgage | First lien
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	235,296	162,509
Residential mortgage | Home equity – term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	12,208	11,784
Residential mortgage | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	143,616	132,192
Installment and other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 33,411	$ 21,902

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524

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Business Combination, Assets Acquired, Loans and Leases Receivable, Net of Deferred Income

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