Loans Modified As Troubled Debt Restructurings Excluding on Nonaccrual Status (Detail) (Extended Payment Terms, USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012 Contract	Jun. 30, 2012 Contract
Financing Receivable, Modifications [Line Items]
Total Contracts	1	1
Pre-Modification Recorded Investment	$ 351	$ 351
Post-Modification Recorded Investment	319	319
Single Family Owner Occupied
Financing Receivable, Modifications [Line Items]
Total Contracts	1	1
Pre-Modification Recorded Investment	351	351
Post-Modification Recorded Investment	$ 319	$ 319

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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

+ Details

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- Definition

Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

+ Details

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- Definition

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

+ Details

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