LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Summary of Allowance for Loan Loss Allocation (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	$ 17,350	$ 15,532
Loans, Collectively evaluated for impairment	764,363	689,414
Total Loans	781,713	704,946
Allowance for loan losses, Individually evaluated for impairment	289	188
Allowance for loan losses, Collectively evaluated for impairment	13,279	14,559
Allowance for loan losses, Total	13,568	14,747	$ 20,965	$ 23,166
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	11,832	9,635
Loans, Collectively evaluated for impairment	508,270	452,718
Total Loans	520,102	462,353
Allowance for loan losses, Individually evaluated for impairment	0	2
Allowance for loan losses, Collectively evaluated for impairment	9,803	11,146
Allowance for loan losses, Total	9,803	11,148	14,993	19,079
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	5,518	5,897
Loans, Collectively evaluated for impairment	256,093	236,696
Total Loans	261,611	242,593
Allowance for loan losses, Individually evaluated for impairment	289	186
Allowance for loan losses, Collectively evaluated for impairment	2,702	2,195
Allowance for loan losses, Total	2,991	2,381	3,904	2,360
Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	0	0
Loans, Collectively evaluated for impairment	0	0
Total Loans	0	0
Allowance for loan losses, Individually evaluated for impairment	0	0
Allowance for loan losses, Collectively evaluated for impairment	774	1,218
Allowance for loan losses, Total	774	1,218	2,068	1,727
Commercial real estate \| Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	11,093	6,788
Loans, Collectively evaluated for impairment	327,170	315,218
Total Loans	338,263	322,006
Allowance for loan losses, Individually evaluated for impairment	0	2
Allowance for loan losses, Collectively evaluated for impairment	7,883	9,460
Allowance for loan losses, Total	7,883	9,462	13,215	13,719
Acquisition and development \| Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	5	410
Loans, Collectively evaluated for impairment	50,698	29,751
Total Loans	50,703	30,161
Allowance for loan losses, Individually evaluated for impairment	0	0
Allowance for loan losses, Collectively evaluated for impairment	850	697
Allowance for loan losses, Total	850	697	670	3,502
Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loans	73,625	48,995
Commercial and industrial \| Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	734	2,437
Loans, Collectively evaluated for impairment	72,891	46,558
Total Loans	73,625	48,995
Allowance for loan losses, Individually evaluated for impairment	0	0
Allowance for loan losses, Collectively evaluated for impairment	1,012	806
Allowance for loan losses, Total	1,012	806	864	1,635
Municipal
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loans	57,511	61,191
Municipal \| Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	0	0
Loans, Collectively evaluated for impairment	57,511	61,191
Total Loans	57,511	61,191
Allowance for loan losses, Individually evaluated for impairment	0	0
Allowance for loan losses, Collectively evaluated for impairment	58	183
Allowance for loan losses, Total	58	183	244	223
Residential and mortgage \| Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	5,501	5,871
Loans, Collectively evaluated for impairment	248,589	230,831
Total Loans	254,090	236,702
Allowance for loan losses, Individually evaluated for impairment	281	173
Allowance for loan losses, Collectively evaluated for impairment	2,589	2,089
Allowance for loan losses, Total	2,870	2,262	3,780	2,275
Installment and other loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loans	7,521	5,891
Installment and other loans \| Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	17	26
Loans, Collectively evaluated for impairment	7,504	5,865
Total Loans	7,521	5,891
Allowance for loan losses, Individually evaluated for impairment	8	13
Allowance for loan losses, Collectively evaluated for impairment	113	106
Allowance for loan losses, Total	$ 121	$ 119	$ 124	$ 85

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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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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