Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share - Antidilutive Securities (Details)

v3.20.1
Net Loss Per Share - Antidilutive Securities (Details) - shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share    
Anti-dilutive securities excluded from computation of diluted loss per share (in shares) 8,380,661 12,054,233
Options to purchase common stock    
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share    
Anti-dilutive securities excluded from computation of diluted loss per share (in shares) 785,399 1,768,350
Unvested restricted stock awards and units    
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share    
Anti-dilutive securities excluded from computation of diluted loss per share (in shares) 2,074,757 2,022,057
Warrants    
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share    
Anti-dilutive securities excluded from computation of diluted loss per share (in shares) 470,000 470,000
Convertible Notes    
Common share equivalents for securities that were anti-dilutive and therefore excluded from the computation of diluted earnings per share    
Anti-dilutive securities excluded from computation of diluted loss per share (in shares) 5,050,505 7,793,826