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RELATED PARTIES - Narrative (Details) - USD ($) $ in Millions | 1 Months Ended | 9 Months Ended
--- | --- | ---
Feb. 28, 2018 | Sep. 30, 2019
Related Party Transaction [Line Items] |  |
Proceeds from Warrant Exercises |  | $ 15.2
Class of Warrant or Right, Exercised |  | 644,365
Common Stock Warrants |  |
Related Party Transaction [Line Items] |  |
Stock option expense | $ 2.5 |

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- Definition Class of Warrant or Right, Exercised + References No definition available. + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
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- Definition The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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- Details
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