9. Securities (Details) (USD $)	3 Months Ended	6 Months Ended	12 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Mar. 31, 2012
Amortized Cost of Investment And Mortgage-Backed Securities Available For Sale	$ 346,645,819		$ 346,645,819		$ 343,421,858
Available For Sale	359,820,610		359,820,610		353,954,857
Proceeds From Sale of Investment Securities Available For Sale	15,600,000	25,900,000	23,400,000	34,200,000
Gain On Sale Of Investment Securities Available For Sale	325,000	385,000	428,000	556,000
Available-for-sale Securities, Gross Realized Losses	0	0	0	0
Held To Maturity	69,033,012		69,033,012		67,676,210
Fair Value of Investment And Mortgage-Backed Securities Held To Maturity	72,343,921		72,343,921		69,965,869
Proceeds from Sale of Held-to-maturity Securities			0	0	0
GNMA Mortgage-backed Securities
Amortized Cost of Investment And Mortgage-Backed Securities Available For Sale	145,900,000		145,900,000		143,800,000
Available For Sale	152,300,000		152,300,000		149,300,000
Held To Maturity	45,900,000		45,900,000		42,200,000
Fair Value of Investment And Mortgage-Backed Securities Held To Maturity	$ 48,700,000		$ 48,700,000		$ 43,900,000

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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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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- Definition

This item represents the aggregate fair value of investments in debt securities as of the balance sheet date and which are categorized as held-to-maturity.

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- Definition

The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

+ References

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

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

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+ Details

- Definition

The cash inflow associated with the sale of securities that had been designated as held-to-maturity. Excludes proceeds from maturities, prepayments and calls by the issuer.

+ References

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

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

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+ Details