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FAIR VALUE OF FINANCIAL INSTRUMENTS - Changes in fair value of the Company level 3 financial instruments (unaudited) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Dec. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |
Beginning balance | $ (635) | $ (3,739) | $ (978)
Increase due to change in fair value of warrant liabilities | (1,230) | (1,490) | (887)
Reclass of fair value of warranty liability to common stock upon exercise of warrants |  | $ 5,229 |
Ending balance | $ (1,865) |  | $ (1,865)

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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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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