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DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Series A Warrants (Details) - Series A Warrants
$ / shares in Units, $ in Millions
Jun. 02, 2020
USD ($)
$ / shares
shares
Warrants  
Warrants exercise price (in dollars per share) $ 2.7953
Term of warrants 5 years
Number of shares of common stock subject to warrants (in shares) | shares 8,384,764
Pre-money valuation amount | $ $ 15
Exercise price as a percentage of Reset Price 125.00%
Percentage of market value payable to warrant holders for each day purchased common shares are undelivered 1.50%
Minimum  
Warrants  
Warrants exercise price (in dollars per share) $ 1.2085
Blocker provision percentage 4.99%
Maximum  
Warrants  
Blocker provision percentage 9.99%