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WARRANTS, CANCELLATION AND AMENDMENT (Details) - 2018 Series A Warrant Exercise price - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2019
Nov. 30, 2019
Warrants    
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 6.98
Fair value adjustment of warrants $ 0.7