Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share - Anti-dilutive Securities (Details)

v3.21.2
Net Loss Per Share - Anti-dilutive Securities (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Jan. 31, 2021
Nantahala          
Anti-dilutive securities          
Number of shares available under warrant (in shares) 1,676,923   1,676,923   1,676,923
Stock options          
Anti-dilutive securities          
Anti- dilutive securities excluded from the computation of diluted weighted shares outstanding (in shares) 13,473,412 9,548,262 13,473,412 9,548,262  
Warrants on common stock          
Anti-dilutive securities          
Anti- dilutive securities excluded from the computation of diluted weighted shares outstanding (in shares) 4,406,224 4,024,708 4,406,224 4,024,708  
Restricted Stock Units          
Anti-dilutive securities          
Anti- dilutive securities excluded from the computation of diluted weighted shares outstanding (in shares) 77,916 155,833 77,916 155,833