Fair Value of Assets and Liabilities - Schedule of Level 3 Assets Measured at Fair Value on Recurring Basis (Detail) (Mortgage Servicing Rights, Fair Value, Measurements, Recurring, USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Mortgage Servicing Rights | Fair Value, Measurements, Recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 792	$ 654
Changes in fair value	41	137
Capitalized servicing assets	37	39
Ending balance	$ 870	$ 830