Securities (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013 item	Mar. 31, 2012 item
SECURITIES
Number of available-for-sale securities in unrealized loss position	0	0
Residential mortgage-backed securities
Available for Sale, Amortized cost
Securities without single maturity date	8,944
Available for Sale, Fair Value
Securities without single maturity date	9,199
Held to maturity, Amortized Cost
Securities without single maturity date	1,459
Held to Maturity, Fair Value
Securities without single maturity date	1,578

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Amount of available-for-sale debt securities at cost, net of adjustments, that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the cost over several maturity groupings. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

+ References

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-Name Accounting Standards Codification

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Amount of available-for-sale debt securities at fair value that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the fair value over several maturity groupings.

+ References

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-Name Accounting Standards Codification

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- Definition

Disclosure regarding factors used to determine that the impairment of securities not categorized as either held-to-maturity securities or trading securities (hence equal to available for sale securities) where cost exceeds fair value is not an other than temporary impairment (OTTI). This item contains disclosure of the number of investment positions in the available-for-sale investments determined to be temporarily impaired.

+ References

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-Name Accounting Standards Codification

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-SubTopic 10

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Amount of held-to-maturity debt securities at fair value that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the fair value over several maturity groupings.

+ References

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Carrying amount of debt securities accounted for as held-to-maturity, net of adjustments including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized, and fair value hedge accounting adjustments, over several maturity groupings.

+ References

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-Name Statement of Financial Accounting Standard (FAS)

-Number 115

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