Fair Value Measurements Fair Value on a Recurring basis (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Mar. 31, 2013	Mar. 31, 2012
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Servicing Asset at Amortized Cost	$ 275	$ 275
Government National Mortgage Asscociation, AFS, Fair Value Disclosure	17,404	23,840
Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure	17,372	16,059
Federal National Mortgage Corporation, AFS, Fair Value Disclosure	11,193	4,303
Asset-Backed Securities, at Carrying Value	12,766	15,519
Other Securities, AFS, Fair Value Disclosure	57,642	56,330
AFS Fair Value	116,377	116,051
Assets, Fair Value Disclosure	116,652	116,326
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Servicing Asset at Amortized Cost	0	0
Government National Mortgage Asscociation, AFS, Fair Value Disclosure	0	0
Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure	0	0
Federal National Mortgage Corporation, AFS, Fair Value Disclosure	0	0
Asset-Backed Securities, at Carrying Value	0	0
Other Securities, AFS, Fair Value Disclosure	0	0
AFS Fair Value	0	0
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Servicing Asset at Amortized Cost	0	0
Government National Mortgage Asscociation, AFS, Fair Value Disclosure	17,404	23,840
Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure	17,372	16,059
Federal National Mortgage Corporation, AFS, Fair Value Disclosure	11,193	4,303
Asset-Backed Securities, at Carrying Value	12,766	15,519
Other Securities, AFS, Fair Value Disclosure	57,592	56,279
AFS Fair Value	116,327	116,000	116,000
Assets, Fair Value Disclosure	116,327	116,000
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Servicing Asset at Amortized Cost	275	275
Government National Mortgage Asscociation, AFS, Fair Value Disclosure	0	0
Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure	0	0
Federal National Mortgage Corporation, AFS, Fair Value Disclosure	0	0
Asset-Backed Securities, at Carrying Value	0	0
Other Securities, AFS, Fair Value Disclosure	50	51
AFS Fair Value	50	51	51
Assets, Fair Value Disclosure	$ 325	$ 326

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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Amortized carrying amount (balance) as of the balance sheet date of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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

-Publisher FASB

-Name Accounting Standards Codification

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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

-Publisher FASB

-Name Accounting Standards Codification

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 140

-Paragraph 13A, 13B

-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 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

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-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 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 140

-Paragraph 17

-Subparagraph g(1)(a)

-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.

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