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STOCKHOLDERS’ EQUITY - Summary of number of price-reduced and price-retained warrants (Detail)	Jun. 30, 2017 $ / shares shares
Series C Warrant [Member] | Number of Warrant Shares Repriced [Member]
Class of Warrant or Right [Line Items]
Number of Warrant Shares | shares	313,750
Series C Warrant [Member] | Pre-reduced Price [Member]
Class of Warrant or Right [Line Items]
Price	$ 6.00
Series C Warrant [Member] | Post-reduced Price [Member]
Class of Warrant or Right [Line Items]
Price	$ 4.00
Series D Warrant [Member] | Number of Warrant Shares Repriced [Member]
Class of Warrant or Right [Line Items]
Number of Warrant Shares | shares	312,500
Series D Warrant [Member] | Pre-reduced Price [Member]
Class of Warrant or Right [Line Items]
Price	$ 9.00
Series D Warrant [Member] | Post-reduced Price [Member]
Class of Warrant or Right [Line Items]
Price	$ 4.00
Series F Warrant [Member] | Number of Warrant Shares Repriced [Member]
Class of Warrant or Right [Line Items]
Number of Warrant Shares | shares	292,500
Series F Warrant [Member] | Pre-reduced Price [Member]
Class of Warrant or Right [Line Items]
Price	$ 7.20
Series F Warrant [Member] | Post-reduced Price [Member]
Class of Warrant or Right [Line Items]
Price	$ 4.00

X

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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