Quarterly report pursuant to Section 13 or 15(d)

Pre-Funded Warrants - Summary of Pre-Funded Warrants Outstanding (Details)

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Pre-Funded Warrants - Summary of Pre-Funded Warrants Outstanding (Details) - $ / shares
Jun. 11, 2020
Feb. 04, 2020
Sep. 30, 2020
Equity [Abstract]      
Issue Date Jun. 11, 2020 Feb. 04, 2020  
Exercise Price $ 0.001 $ 0.001 $ 0.001
Expiration Date Jun. 11, 2040 Feb. 04, 2040  
Number of shares underlying warrants 909,091 2,884,615 3,793,706