Loans Receivable - Summary of Loans by Class Modified in Troubled Debt Restructurings (Detail) $ in Thousands	12 Months Ended
Jun. 30, 2018 USD ($) Loan	Jun. 30, 2017 USD ($) Loan	Jun. 30, 2016 USD ($) Loan
Financing Receivable Modifications [Line Items]
Number of loans \| Loan	1	2	4
Pre-Modification Outstanding Recorded Investment	$ 275	$ 441	$ 3,139
Post-Modification Outstanding Recorded Investment	$ 289	$ 486	$ 3,139
Commercial Loans [Member]
Financing Receivable Modifications [Line Items]
Number of loans \| Loan	1	1	1
Pre-Modification Outstanding Recorded Investment	$ 275	$ 276	$ 64
Post-Modification Outstanding Recorded Investment	$ 289	$ 276	$ 64
Residential [Member]
Financing Receivable Modifications [Line Items]
Number of loans \| Loan		1	3
Pre-Modification Outstanding Recorded Investment		$ 165	$ 1,697
Post-Modification Outstanding Recorded Investment		$ 210	$ 1,697
Commercial [Member]
Financing Receivable Modifications [Line Items]
Number of loans \| Loan			1
Pre-Modification Outstanding Recorded Investment			$ 1,178
Post-Modification Outstanding Recorded Investment			$ 1,178
Home Equity Lines Of Credit [Member]
Financing Receivable Modifications [Line Items]
Number of loans \| Loan			1
Pre-Modification Outstanding Recorded Investment			$ 200
Post-Modification Outstanding Recorded Investment			$ 200

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

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