Loan Servicing - Narrative (Detail) (Mortgage Loans on Real Estate, USD $)	12 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Mortgage Loans on Real Estate
Servicing Assets at Fair Value [Line Items]
Loan servicing fees, annual percentage based on monthly outstanding balances of loans serviced	0.25%
Unpaid principal balance of mortgages serviced for others	$ 71,800,000	$ 67,700,000
Loan servicing fees recognized	$ 321,000	$ 346,000	$ 239,000

All amounts that, per contract, are due to the servicer in exchange for servicing the financial asset and would no longer be received by a servicer if the beneficial owners of the serviced assets (or their trustees or agents) were to exercise their actual or potential authority under the contract to shift the servicing to another servicer. Depending on the servicing contract, those fees may include some or all of the difference between the interest rate collected on the asset being serviced and the rate to be paid to the beneficial owners of the asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 860

-SubTopic 50

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122596-111746

Name:	us-gaap_ContractuallySpecifiedServicingFeesAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration