Loans (Loans By Class Modified As Troubled Debt Restructurings) (Details) (USD $)	Mar. 31, 2013 Number	Mar. 31, 2012 Number
Financing Receivable, Modifications [Line Items]
Mortgage Loan On Real Estate Number Of Loans	0	0
Financing Receivable Modification Pre Modification Recorded Investment	$ 0	$ 0
Financing Receivable Modification Post Modification Recorded Investment	0	0
Commercial and Industrial Loans and Leases [Member]
Financing Receivable, Modifications [Line Items]
Mortgage Loan On Real Estate Number Of Loans	0	0
Financing Receivable Modification Pre Modification Recorded Investment	0	0
Financing Receivable Modification Post Modification Recorded Investment	0	0
Commercial Real Estate Loans [Member]
Financing Receivable, Modifications [Line Items]
Mortgage Loan On Real Estate Number Of Loans	0	0
Financing Receivable Modification Pre Modification Recorded Investment	0	0
Financing Receivable Modification Post Modification Recorded Investment	$ 0	$ 0

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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=7512638&loc=SL6953676-111524

+ Details

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- Definition

Amount of investment in financing receivables (after modification) modified by troubled debt restructurings.

+ References

+ Details

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- Definition

Amount of investment in financing receivables (before modification) modified by troubled debt restructurings.

+ References

+ Details

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