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Loans - Summary of Activities in Allowance for Credit Losses (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2012
Allowance for Loan & Lease Losses
Balance at beginning of year			$ 5,194	$ 5,224	$ 5,224
Provision for loan loss	444	112	872	279	858
Loans charged off	(168)	(245)	(534)	(362)	(1,262)
Recoveries	62	86	131	156	374
Allowance for Loan & Lease Losses	5,663		5,663		5,194
Allowance for Unfunded Loan Commitments & Letters of Credit	186		186		163
Total Allowance for Credit Losses	$ 5,849	$ 5,484	$ 5,849	$ 5,484	$ 5,357	$ 5,505	$ 5,516	$ 5,386

X

- Definition

Allowance is intended to reflect the potential for losses that may not be funded but for which the bank has made a commitment to fund including letters of credit.

+ References

No definition available.

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- Definition

Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

+ 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 (a)

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- Definition

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

+ References

No definition available.

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- Definition

A valuation allowance for financing receivables that are expected to be uncollectible.

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-Publisher FASB

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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

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Amount of expense related to estimated loss from loan and lease transactions.

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