Investment Securities Text Figures (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Mar. 31, 2012
Schedule of Investments [Line Items]
AFS Fair Value	$ 90,833	$ 85,106
Available-for-sale Securities [Member]
Schedule of Investments [Line Items]
AFS Fair Value	90,833	85,106
Percentage Available-for-sale Securities	89.70%
Total mortgage-backed securities AFS
Schedule of Investments [Line Items]
AFS Fair Value	44,201	46,084
Percentage Available-for-Sale, Continuos Unrealized Loss Position	57.90%
US Government Agency Securities
Schedule of Investments [Line Items]
AFS Fair Value	31,000	23,204
Percentage Available-for-Sale, Continuos Unrealized Loss Position	38.60%
Treasuries
Schedule of Investments [Line Items]
Percentage Available-for-Sale, Continuos Unrealized Loss Position	3.50%
Held-to-maturity securities
Schedule of Investments [Line Items]
Percentage Held-to-maturity Securities	10.30%
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Schedule of Investments [Line Items]
AFS Fair Value		$ 85,106

- Definition

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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