The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524

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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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- Definition

The balance of financing receivables that were collectively evaluated for impairment.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (h)

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- Definition

The balance of financing receivables that were individually evaluated for impairment.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (h)

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- Definition

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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(d))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph d

-Article 9

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-Name Accounting Standards Codification

-Topic 310

-SubTopic 30

-Section 50

-Paragraph 2

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1

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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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-Name Accounting Standards Codification

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-Section 50

-Paragraph 4

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Loans Receivable and Allowance for Loan Losses - Summary of Allowance for Loan Loss Allocation (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	$ 26,632		$ 25,335
Loans, Collectively evaluated for impairment	652,222		645,702
Total Loans	678,854		671,037
Allowance for loan losses, Individually evaluated for impairment	3,069		613
Allowance for loan losses, Collectively evaluated for impairment	17,356		20,352
Allowance for loan losses, Total	20,425	20,497	20,965	20,098	21,917	23,166
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	18,772		16,494
Loans, Collectively evaluated for impairment	307,050		308,903
Total Loans	325,822		325,397
Allowance for loan losses, Individually evaluated for impairment	2,945		552
Allowance for loan losses, Collectively evaluated for impairment	11,108		12,663
Allowance for loan losses, Total	14,053	13,719	13,215	11,288	12,165	13,719
Acquisition and Development [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	1,322		3,177
Loans, Collectively evaluated for impairment	20,295		19,601
Total Loans	21,617		22,778
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	852		670
Allowance for loan losses, Total	852	474	670	1,946	2,614	3,502
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	1,832		2,001
Loans, Collectively evaluated for impairment	36,761		31,445
Total Loans	38,593		33,446
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	993		864
Allowance for loan losses, Total	993	919	864	875	1,353	1,635
Municipal [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	0		0
Loans, Collectively evaluated for impairment	59,290		60,996
Total Loans	59,290		60,996
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	178		244
Allowance for loan losses, Total	178	244	244	254	285	223
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	21,926		21,672
Loans, Collectively evaluated for impairment	423,396		420,945
Total Loans	445,322		442,617
Allowance for loan losses, Individually evaluated for impairment	2,945		552
Allowance for loan losses, Collectively evaluated for impairment	13,131		14,441
Allowance for loan losses, Total	16,076	15,356	14,993	14,363	16,417	19,079
Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	4,703		3,663
Loans, Collectively evaluated for impairment	222,873		218,573
Total Loans	227,576		222,236
Allowance for loan losses, Individually evaluated for impairment	121		61
Allowance for loan losses, Collectively evaluated for impairment	2,241		3,719
Allowance for loan losses, Total	2,362	3,112	3,780	3,796	3,388	2,275
Installment and Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	3		0
Loans, Collectively evaluated for impairment	5,953		6,184
Total Loans	5,956		6,184
Allowance for loan losses, Individually evaluated for impairment	3		0
Allowance for loan losses, Collectively evaluated for impairment	183		124
Allowance for loan losses, Total	186	126	124	134	112	85
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	4,706		3,663
Loans, Collectively evaluated for impairment	228,826		224,757
Total Loans	233,532		228,420
Allowance for loan losses, Individually evaluated for impairment	124		61
Allowance for loan losses, Collectively evaluated for impairment	2,424		3,843
Allowance for loan losses, Total	2,548	3,238	3,904	3,930	3,500	2,360
Unallocated [Member]
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	1,801		2,068
Allowance for loan losses, Total	$ 1,801	$ 1,903	$ 2,068	$ 1,805	$ 2,000	$ 1,727