Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share - Schedule of Antidilutive Shares Excluded from Calculation of Diluted Net Loss Per Share (Details)

v3.20.1
Net Loss Per Share - Schedule of Antidilutive Shares Excluded from Calculation of Diluted Net Loss Per Share (Details) - shares
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Antidilutive shares have been excluded from calculation of diluted net loss per share 3,815,889 23,043,771
Convertible Preferred Stock    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Antidilutive shares have been excluded from calculation of diluted net loss per share   19,356,835
Stock Options to Purchase Common Stock    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Antidilutive shares have been excluded from calculation of diluted net loss per share 2,657,704 1,304,285
Non-vested Common Stock    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Antidilutive shares have been excluded from calculation of diluted net loss per share 1,158,185 2,382,651