Mortgage Banking Activities - Mortgage Banking Activities (Detail) (USD $)	12 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Mortgage Banking [Abstract]
Mortgage loan servicing fees	$ 2,718,150	$ 2,314,186	$ 2,580,089
Amortization of mortgage servicing rights	(3,780,263)	(3,612,550)	(3,000,186)
Recovery (impairment) of mortgage servicing rights	(178,087)	(512,480)	(304,001)
Mortgage loan servicing (loss), net	(1,240,200)	(1,810,844)	(724,098)
Changes in fair value of loans held for sale	(19,237)	556,778	(142,208)
Changes in fair value of mortgage banking derivatives	(964,244)	1,370,796	(438,949)
Realized gains on sale of loans	13,679,113	9,020,634	7,920,334
Mortgage banking activities, net	$ 11,455,432	$ 9,137,364	$ 6,615,079

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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The adjustment to the carrying value of the rights retained or purchased to service mortgages. These adjustments are made when the estimate of the fair value is changed. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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