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LOANS - Impaired Loans Classified as Troubled Debt Restructured (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013 Contract	Sep. 30, 2012 Contract	Sep. 30, 2013 Contract	Sep. 30, 2012 Contract
Commercial Real Estate [Member]
Schedule Of Financing Receivable Troubled Debt Restructurings [Line Items]
Number of Contracts Modified, Troubled Debt Restructurings				1
Pre- Modification Outstanding Recorded Investment				$ 1,937
Post- Modification Outstanding Recorded Investment				1,937
Number of Contracts Modified, Troubled Debt Restructurings That Subsequently Defaulted
Recorded Investment
Agricultural Real Estate [Member]
Schedule Of Financing Receivable Troubled Debt Restructurings [Line Items]
Number of Contracts Modified, Troubled Debt Restructurings
Pre- Modification Outstanding Recorded Investment
Post- Modification Outstanding Recorded Investment
Number of Contracts Modified, Troubled Debt Restructurings That Subsequently Defaulted
Recorded Investment
Commercial and Industrial [Member]
Schedule Of Financing Receivable Troubled Debt Restructurings [Line Items]
Number of Contracts Modified, Troubled Debt Restructurings		2	1	2
Pre- Modification Outstanding Recorded Investment		420	81	420
Post- Modification Outstanding Recorded Investment		420	43	420
Number of Contracts Modified, Troubled Debt Restructurings That Subsequently Defaulted
Recorded Investment

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- Definition

Financing Receivable Modifications Post Modification Recorded Investment One

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953676-111524

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Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 34

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953682-111524

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Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 34

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953682-111524

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