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 ($)
 6 Months Ended
Jun. 30, 2020
Jun. 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 3,644,127 1,892,200
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 21,940,110  
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 196,903 1,237,895
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 30,046