LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Average Recorded Investment in Impaired Loans and Related Interest Income (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Average Impaired Balance	$ 15,118	$ 14,346	$ 20,201
Interest Income Recognized	33	174	274
Commercial real estate \| Owner-occupied
Financing Receivable, Impaired [Line Items]
Average Impaired Balance	1,758	2,613	3,740
Interest Income Recognized	0	0	20
Commercial real estate \| Non-owner occupied
Financing Receivable, Impaired [Line Items]
Average Impaired Balance	6,831	3,470	6,711
Interest Income Recognized	0	0	143
Commercial real estate \| Multi-family
Financing Receivable, Impaired [Line Items]
Average Impaired Balance	216	402	274
Interest Income Recognized	0	0	2
Commercial real estate \| Non-owner occupied residential
Financing Receivable, Impaired [Line Items]
Average Impaired Balance	645	1,020	2,095
Interest Income Recognized	0	0	13
Acquisition and development \| Commercial and land development
Financing Receivable, Impaired [Line Items]
Average Impaired Balance	3	266	1,250
Interest Income Recognized	0	137	34
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Average Impaired Balance	575	1,208	1,700
Interest Income Recognized	0	0	5
Residential mortgage \| First lien
Financing Receivable, Impaired [Line Items]
Average Impaired Balance	4,525	4,644	4,226
Interest Income Recognized	33	37	53
Residential mortgage \| Home equity – term
Financing Receivable, Impaired [Line Items]
Average Impaired Balance	98	130	85
Interest Income Recognized	0	0	0
Residential mortgage \| Home equity – lines of credit
Financing Receivable, Impaired [Line Items]
Average Impaired Balance	455	571	111
Interest Income Recognized	0	0	3
Installment and other loans
Financing Receivable, Impaired [Line Items]
Average Impaired Balance	12	22	9
Interest Income Recognized	$ 0	$ 0	$ 1

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5258-111524

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

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