Other Loans Held For Sale and Valuation Allowance - Summary of Other Loans Held for Sale and Related Valuation Allowance (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013
Finance Receivable Transferred To Held For Sale [Line Items]
Other loans held for sale, Gross, Beginning Balance	$ 2,288
Additions:
SBA loans transferred to other loans held for sale	1,695
Total additions	1,695
SBA loans transferred to other loans held for sale
Total additions
Reductions:
Sales of SBA loans	1,695
Total reductions	1,695
Sales of SBA loans
Total reductions
Other loans held for sale, Gross, Ending Balance	2,288
Valuation allowance on other loans held for sale, beginning balance	1,512
Additions:
SBA loans transferred to other loans held for sale	1,695
Total additions	1,695
SBA loans transferred to other loans held for sale
Total additions
Reductions:
Sales of SBA loans	1,695
Total reductions	1,695
Sales of SBA loans
Total reductions
Valuation allowance on other loans held for sale, end of period	$ 1,512

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Loans receivable held for sale additions.

+ References

No definition available.

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Loans receivable held for sale reductions.

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Loans receivable held for sale valuation allowance.

+ References

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- Definition

Loans receivable held for sale valuation allowance additions.

+ References

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Loans receivable held for sale valuation allowance reductions.

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- Definition

Other Loans Transferred To Loans Held For Sale.

+ References

No definition available.

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- Definition

Other Loans Transferred To Loans Held For Sale Valuation Allowance.

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No definition available.

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- Definition

Proceeds From Sales Of Loans Held For Sale

+ References

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Proceeds from valuation allowance on other loans held for sale.

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- Definition

Reflects the carrying amount of loans held for sale not otherwise specified in the existing taxonomy.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 65

-Paragraph 4, 5, 6, 7, 8, 9, 12, 17, 28, 29

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522

Reference 3: 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(a)(7))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Section 563c.102

-Paragraph 8

-Subparagraph h(i)

-Chapter V

-Subsection I

-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

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