FAIR VALUE OF FINANCIAL INSTRUMENTS - Changes in fair value of the Company level 3 financial instruments (unaudited) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ (1,865)	$ (3,739)	$ (978)
Increase due to change in fair value of warrant liabilities	(4,805)	(1,490)	(5,692)
Reclass of fair value of warranty liability to common stock upon exercise of warrants	706	$ 5,229	706
Ending balance	$ (5,964)		$ (5,964)

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

+ Details

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- Definition

The noncurrent portion (due beyond one year or one operating cycle) of warrant liabilities not otherwise defined in the taxonomy.

+ References

No definition available.

+ Details

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- Definition

Reclass of fair value of warranty liability to common stock upon exercise of warrants.

+ References

No definition available.

+ Details

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