STOCKHOLDERS' DEFICIT - 2017 Warrants (Details) - Common Stock - 2017 Warrants - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
Jun. 29, 2017	Mar. 31, 2018
Class of Warrant or Right [Line Items]
Warrant exercise threshold	4.99%
Warrant holder outstanding common stock ownership limitation	19.99%
Term of warrants	10 years
Exercise price of warrants (in dollars per share)	$ 2.00
Remeasurement adjustment		$ (3.4)
Warrants, fair value		$ 17.1

Class Of Warrant Or Right, Exercise Threshold

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- Definition

Class Of Warrant Or Right, Term

+ References

No definition available.

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- 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

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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.

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- Definition

Amount of addition (reduction) to the amount at which a liability could be incurred (settled) in a current transaction between willing parties.

+ References

No definition available.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

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- Definition

Fair value portion of warrants not settleable in cash classified as equity.

+ 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 (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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