Disclosures about Fair Value of Assets - Quantitative Information about Unobservable Inputs Used in Recurring and Nonrecurring Level 3 Fair Value Measurements (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Mortgage Servicing Rights [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value	$ 506	$ 502	$ 329
Valuation Technique	Discounted cash flow	Discounted cash flow
Mortgage Servicing Rights [Member] | Minimum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Unobservable Input, Discount rate	10.00%	10.50%
Unobservable Inputs, Constant prepayment rate	10.80%	10.70%
Unobservable Inputs, Probability of default	0.13%	0.20%
Mortgage Servicing Rights [Member] | Maximum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Unobservable Input, Discount rate	11.00%	11.50%
Unobservable Inputs, Constant prepayment rate	13.10%	12.68%
Unobservable Inputs, Probability of default	0.26%	0.35%
Mortgage Servicing Rights [Member] | Weighted Average [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Unobservable Input, Discount rate	10.00%	10.50%
Unobservable Inputs, Constant prepayment rate	11.90%	11.74%
Unobservable Inputs, Probability of default	0.25%	0.34%
Impaired Loans (Collateral Dependent) [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value	401	581
Valuation Technique	Market comparable properties	Market comparable properties
Impaired Loans (Collateral Dependent) [Member] | Minimum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Unobservable Inputs, Marketability discount	0.00%	16.00%
Impaired Loans (Collateral Dependent) [Member] | Maximum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Unobservable Inputs, Marketability discount	24.00%	24.00%
Impaired Loans (Collateral Dependent) [Member] | Weighted Average [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Unobservable Inputs, Marketability discount	23.70%	23.00%
Foreclosed Assets [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair Value	$ 38	$ 399
Valuation Technique	Market comparable properties	Market comparable properties
Foreclosed Assets [Member] | Minimum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Unobservable Inputs, Comparability adjustments
Foreclosed Assets [Member] | Maximum [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Unobservable Inputs, Comparability adjustments	24.00%	16.00%
Foreclosed Assets [Member] | Weighted Average [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Unobservable Inputs, Comparability adjustments	24.00%	16.00%