COMMITMENTS AND CONTINGENCIES - Narrative (Details) - CBG Acquisition Warrants - $ / shares	Jan. 15, 2019	Sep. 30, 2020	Sep. 30, 2019	Feb. 21, 2018
Class of Warrant or Right [Line Items]
Warrants that would have been issued to holders on as-exercised basis (shares)	5,710,000	5,710,000		5,710,000
Exercise price of warrants (usd per share)	$ 6.00	$ 10.00	$ 10.00	$ 10.00
Warrant exercise term	5 years
Threshold minimum stock price trigger for exercise of warrants (usd per share)	$ 8.00
Threshold non-consecutive trading day window	5 days
Consecutive trading day window	30 days

Class Of Warrant Or Right, Consecutive Trading Day Window

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- Definition

Class Of Warrant Or Right, Exercised, Trading Days

+ References

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- Definition

Class Of Warrant Or Right, Threshold Minimum Stock Price Trigger

+ References

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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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

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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

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

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- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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