Quarterly report pursuant to Section 13 or 15(d)

Capital Structure - Warrants (Details)

v3.21.1
Capital Structure - Warrants (Details) - $ / shares
Mar. 31, 2021
Jan. 31, 2021
Dec. 31, 2018
Common Stock Warrants      
Number of shares available under warrant (in shares)     4,000,000
Exercise price per share (in dollars per share)   $ 0.001 $ 12.50
Common Stock      
Common Stock Warrants      
Number of shares available under warrant (in shares) 5,679,303    
Common Stock Warrants Expiration May 2022 | Common Stock      
Common Stock Warrants      
Number of shares available under warrant (in shares) 2,380    
Exercise price per share (in dollars per share) $ 8.68    
Common Stock Warrants Expiration Date Of June 2024 | Common Stock      
Common Stock Warrants      
Number of shares available under warrant (in shares) 4,000,000    
Exercise price per share (in dollars per share) $ 12.50    
Common Stock Warrants No Expiration | Common Stock      
Common Stock Warrants      
Number of shares available under warrant (in shares) 1,676,923    
Exercise price per share (in dollars per share) $ 0.001