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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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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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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LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Summary of Ending Loan Balances Evaluated for Impairment and Related Allowance for Loan Losses Allocation (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	$ 11,265		$ 15,532
Loans, Collectively evaluated for impairment	740,265		689,414
Total Loans	751,530		704,946
Allowance for loan losses, Individually evaluated for impairment	270		188
Allowance for loan losses, Collectively evaluated for impairment	13,582		14,559
Allowance for loan losses, Total	13,852	$ 14,461	14,747	$ 20,425	$ 20,497	$ 20,965
Commercial and Industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loans	60,286		48,995
Municipal
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loans	59,366		61,191
Installment and other loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loans	6,880		5,891
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	5,802		9,635
Loans, Collectively evaluated for impairment	492,934		452,718
Total Loans	498,736		462,353
Allowance for loan losses, Individually evaluated for impairment	144		2
Allowance for loan losses, Collectively evaluated for impairment	9,671		11,146
Allowance for loan losses, Total	9,815	10,720	11,148	16,076	15,356	14,993
Commercial \| Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	4,752		6,788
Loans, Collectively evaluated for impairment	333,650		315,218
Total Loans	338,402		322,006
Allowance for loan losses, Individually evaluated for impairment	144		2
Allowance for loan losses, Collectively evaluated for impairment	7,988		9,460
Allowance for loan losses, Total	8,132	9,346	9,462	14,053	13,719	13,215
Commercial \| Acquisition and Development
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	242		410
Loans, Collectively evaluated for impairment	40,440		29,751
Total Loans	40,682		30,161
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	720		697
Allowance for loan losses, Total	720	588	697	852	474	670
Commercial \| Commercial and Industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	808		2,437
Loans, Collectively evaluated for impairment	59,478		46,558
Total Loans	60,286		48,995
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	844		806
Allowance for loan losses, Total	844	665	806	993	919	864
Commercial \| Municipal
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	0		0
Loans, Collectively evaluated for impairment	59,366		61,191
Total Loans	59,366		61,191
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	119		183
Allowance for loan losses, Total	119	121	183	178	244	244
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	5,463		5,897
Loans, Collectively evaluated for impairment	247,331		236,696
Total Loans	252,794		242,593
Allowance for loan losses, Individually evaluated for impairment	126		186
Allowance for loan losses, Collectively evaluated for impairment	2,974		2,195
Allowance for loan losses, Total	3,100	2,683	2,381	2,548	3,238	3,904
Consumer \| Residential Mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	5,442		5,871
Loans, Collectively evaluated for impairment	240,472		230,831
Total Loans	245,914		236,702
Allowance for loan losses, Individually evaluated for impairment	117		173
Allowance for loan losses, Collectively evaluated for impairment	2,801		2,089
Allowance for loan losses, Total	2,918	2,567	2,262	2,362	3,112	3,780
Consumer \| Installment and other loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	21		26
Loans, Collectively evaluated for impairment	6,859		5,865
Total Loans	6,880		5,891
Allowance for loan losses, Individually evaluated for impairment	9		13
Allowance for loan losses, Collectively evaluated for impairment	173		106
Allowance for loan losses, Total	182	116	119	186	126	124
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	937		1,218
Allowance for loan losses, Total	$ 937	$ 1,058	$ 1,218	$ 1,801	$ 1,903	$ 2,068