Mortgage Banking Activities - Originated Mortgage Servicing Rights Capitalized and Amortized (Detail) (USD $)	3 Months Ended	9 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Mortgage Banking Activities [Line Items]
Beginning of period	$ 6,116,239	$ 6,696,594	$ 6,867,334	$ 7,519,287
Additions	1,379,563	1,132,160	3,372,629	2,738,575
Amortized to expense	(941,500)	(1,031,394)	(2,919,803)	(2,777,426)
Change in valuation allowance	230,311	102,773	(535,547)	(580,303)
End of period	$ 6,784,613	$ 6,900,133	$ 6,784,613	$ 6,900,133

The periodic amortization (in proportion to and over the period of estimated net servicing income or loss) of capitalized servicing rights, which contractually entitle the servicer to receive fees and ancillary revenues for performing billing, collection, disbursement and recordkeeping services in connection with a mortgage portfolio. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amortized carrying amount (balance) as of the balance sheet date of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

The value of new servicing assets, subsequently measured at amortized value, acquired or created during the current period through purchases or from transfers of financial assets.

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- Definition

The amount of valuation allowance applied to adjust the carrying value of servicing assets.

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