Quarterly report pursuant to Section 13 or 15(d)

Loss per Share - Additional Information (Details)

v3.20.2
Loss per Share - Additional Information (Details) - USD ($)
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Loss allocated to participating securities $ 0  
Stock Options [Member]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive common share equivalents excluded from computation of diluted net loss per share 3,621,280 1,869,127
Warrants [Member]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive common share equivalents excluded from computation of diluted net loss per share 58,625,823  
Restricted Stock Units (RSUs) [Member]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive common share equivalents excluded from computation of diluted net loss per share 516,964 1,021,977
Restricted Stock Awards (RSAs) [Member]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive common share equivalents excluded from computation of diluted net loss per share 125,000  
Employee Stock Purchase Plan [Member]    
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Anti-dilutive common share equivalents excluded from computation of diluted net loss per share 94,296 15,344