OTHER BORROWINGS (Schedule of Other Short-Term Borrowings) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Dec. 31, 2016	Jun. 30, 2016
Other Liabilities Disclosure [Abstract]
Ending balance
Average balance		2,748
Maximum month-end balance		$ 9,700
Average interest rate		0.51%
Weighted-average rate

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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Period Type:	duration

- Definition

Amount of borrowings classified as other, maturing within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(a)(7))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_OtherShortTermBorrowings
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Balance Type:	credit
Period Type:	instant

- Definition

For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, average borrowings during the period.

+ References

No definition available.

+ Details

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

- Definition

For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, maximum month-end borrowings during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

This represents the yearly average interest rate applicable to short-term borrowings.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

The weighted average interest rate for short-term borrowings.

+ References

No definition available.

+ Details

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Namespace Prefix:	wvfc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant