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STOCKHOLDERS' EQUITY - Warrants Exercises - Additional Information (Details) - USD ($)	9 Months Ended		15 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2017
Class Of Warrant Or Right [Line Items]
Proceeds from exercise of warrants	$ 9,356,833	$ 22,222,494
Private Placement | Warrants
Class Of Warrant Or Right [Line Items]
Common stock exercise price per share			$ 5.772
Shares of common stock to purchase by warrant			5,673,758
Proceeds from exercise of warrants			$ 32,700,000
Warrants outstanding	0

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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- 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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X

- Definition

Number 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))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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- Definition

The cash inflow associated with the amount received from holders exercising their stock warrants.

+ References

No definition available.

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