Fair Value - Additional Information (Detail) (USD $)	12 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Fair Value Measurement [Line Items]
Discount for selling cost	9.00%
Additional discount is applied to properties	10.00%
Principal balance on collateral loans	$ 26,300,000	$ 38,600,000
Valuation allowance on impaired loans	1,400,000	13,000,000
Provision for impaired loan losses	400,000	13,500,000
Principal balance impaired charge-offs	9,700,000
Mortgage servicing rights fair value	7,300,000	6,500,000
Impairment charges on mortgage	698,468	1,183,799
Other real estate carrying amount	7,733,578	7,972,753
Net loss recognized on other real estate	(673,950)	(498,995)	(247,674)
Provision on other real estate owned loss	1,960,635
Change in fair value of gains (losses) included in earnings	107,176	(142,153)	556,778
Outstanding
Fair Value Measurement [Line Items]
Mortgage servicing rights fair value, outstanding	8,100,000	6,800,000
Mortgage Servicing Rights
Fair Value Measurement [Line Items]
Valuation allowance on mortgages	800,000	300,000
Tranche
Fair Value Measurement [Line Items]
Impairment charges on mortgage	$ 500,000

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Credit Impaired Loans Outstanding Principal Balance

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The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value.

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The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

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The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns.

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