Fair Value - Additional Information (Detail) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Fair Value Measurement [Line Items]
Discount for selling costs	9.00%
Additional discount is applied to properties	10.00%
Principal balance on collateral loans	$ 11,700,000	$ 26,300,000
Valuation allowance on impaired loans	100,000	1,400,000
Provision for impaired loan losses	1,300,000	400,000
Principal balance impaired charge-offs	4,400,000	9,700,000
Mortgage servicing rights fair value	7,100,000	6,500,000
Impairment charge on mortgage	765,858	698,468	1,183,799
Other real estate carrying amount	6,920,247	7,733,578
Net loss recognized on other real estate	(166,670)	(673,950)	(498,995)
Provision on other real estate owned losses	(1,054,196)	(1,728,797)	(1,303,154)
Changes in fair value	(19,237)	556,778	(142,208)
Outstanding [Member]
Fair Value Measurement [Line Items]
Mortgage servicing rights fair value, outstanding	8,100,000	7,300,000
Mortgage Servicing Rights [Member]
Fair Value Measurement [Line Items]
Valuation allowance on mortgage	1,000,000	800,000
Tranches [Member]
Fair Value Measurement [Line Items]
Impairment charge on mortgage	$ 200,000