Annual report pursuant to Section 13 and 15(d)

Capital Structure - Warrants (Details)

v3.20.1
Capital Structure - Warrants (Details) - Common Stock
Dec. 31, 2019
$ / shares
shares
Common Stock Warrants  
Number of shares available under warrant (in shares) 4,024,708
Common stock warrants, expiration date of October 2020  
Common Stock Warrants  
Number of shares available under warrant (in shares) 22,328
Exercise price per share (in dollars per share) | $ / shares $ 8.40
Common stock warrants, expiration date of May 2022  
Common Stock Warrants  
Number of shares available under warrant (in shares) 2,380
Exercise price per share (in dollars per share) | $ / shares $ 8.68
Common stock warrants expiration date of June 2024  
Common Stock Warrants  
Number of shares available under warrant (in shares) 4,000,000
Exercise price per share (in dollars per share) | $ / shares $ 12.50