Fair Value - Quantitative Information About Level 3 Fair Value Measurements for Financial Instruments Measured at Fair Value on Non-Recurring Basis (Detail) (USD $)	9 Months Ended
	Mar. 31, 2013
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Impaired loans	$ 12,445,743
Real estate owned	$ 7,251,163
Impaired loans [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Valuation Techniques	Appraisal value - sales comparison approach
Unobservable Inputs	Adjustment by management to reflect current conditions and selling costs
Impaired loans, Range and Weighted Average	12.00%
Real estate owned [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Valuation Techniques	Appraisal value - sales comparison approach
Unobservable Inputs	Adjustment by management to reflect current conditions and selling costs
Impaired loans, Range and Weighted Average	10.00%
Minimum [Member] | Impaired loans [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Impaired loans, Range and Weighted Average	10.00%
Minimum [Member] | Real estate owned [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Impaired loans, Range and Weighted Average	9.00%
Maximum [Member] | Impaired loans [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Impaired loans, Range and Weighted Average	15.00%
Maximum [Member] | Real estate owned [Member]
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]
Impaired loans, Range and Weighted Average	10.00%