Securities - Amortized Cost and Fair Value of Securities Available-for-Sale, by Contractual Maturity (Detail) (USD $)	Mar. 31, 2013	Jun. 30, 2012
Schedule of Available-for-sale Securities [Line Items]
One to five years, Amortized Cost	$ 981,515
Five to ten years, Amortized Cost	5,024,678
Greater than 10 years, Amortized Cost	13,275,699
Mortgage-backed GSE securities, Amortized Cost	20,700,442
Total, Amortized Cost	39,982,334	38,058,061
One to five years, Fair Value	981,880
Five to ten years, Fair Value	5,127,351
Greater than 10 years, Fair Value	14,324,372
Mortgage-backed GSE securities, Fair Value	20,985,802
Fair Value	$ 41,419,405	$ 38,658,044

Mortgage Backed Securities Available For Sale Amortized Cost

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. 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.

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Amount of available-for-sale debt securities at fair value maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year.

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Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. 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.

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Amount of available-for-sale debt securities at fair value maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year.

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Amount of available-for-sale debt securities at cost, net of adjustments, maturing after the tenth fiscal year following the latest fiscal year. 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.

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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 securitized, pay-through debt securities collateralized by real estate mortgage loans (mortgages) as of the balance sheet date which have been categorized as available-for-sale.

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