Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENTS - Narrative (Details)

v3.20.2
SUBSEQUENT EVENTS - Narrative (Details)
$ / shares in Units, $ in Millions
1 Months Ended 9 Months Ended
Nov. 12, 2020
USD ($)
$ / shares
shares
Oct. 31, 2020
USD ($)
$ / shares
shares
Sep. 30, 2020
USD ($)
$ / shares
shares
At Market Issuance Sales Agreement      
Subsequent Event [Line Items]      
Number of shares issued in transaction (in shares) | shares     3,400,418
Closing sale price (in dollars per share) | $ / shares     $ 0.84
Consideration received on transaction | $     $ 2.6
Subsequent Event      
Subsequent Event [Line Items]      
Sale of stock, expiration term   5 years  
Subsequent Event | October 2020 Offering      
Subsequent Event [Line Items]      
Number of shares authorized to be repurchased (in shares) | shares   20,833,322  
Consideration received on transaction | $   $ 13.7  
Commissions discounts and other offering expenses | $   $ 1.3  
Subsequent Event | At Market Issuance Sales Agreement      
Subsequent Event [Line Items]      
Number of shares issued in transaction (in shares) | shares 959,749    
Closing sale price (in dollars per share) | $ / shares $ 0.88    
Consideration received on transaction | $ $ 0.8    
Sale of stock, Percentage Of Commission 0.03    
Subsequent Event | Pre-Funded Warrant      
Subsequent Event [Line Items]      
Exercise price (in usd per share) | $ / shares   $ 0.001  
Subsequent Event | Pre-Funded Warrant | October 2020 Offering      
Subsequent Event [Line Items]      
Closing sale price (in dollars per share) | $ / shares   $ 0.719  
Subsequent Event | Common stock warrants | October 2020 Offering      
Subsequent Event [Line Items]      
Number of shares authorized to be repurchased (in shares) | shares   1,829,812  
Closing sale price (in dollars per share) | $ / shares   $ 0.72  
Subsequent Event | Common Stock | October 2020 Offering      
Subsequent Event [Line Items]      
Number of shares issued in transaction (in shares) | shares   19,003,510