Annual report pursuant to Section 13 and 15(d)

Warrants - Summary of Warrant Activity and Related Information (Details)

v3.20.1
Warrants - Summary of Warrant Activity and Related Information (Details) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Weighted Average Exercise Price    
Outstanding at January 1 (in dollars per share) $ 26.19 $ 27.87
Granted (In dollars per share) 1.59  
Forfeited/Expired (in dollars per share) 38.70 62.50
Outstanding at December 31 (in dollars per share) $ 5.88 $ 26.19
Warrant [Member]    
Warrants    
Outstanding at January 1 (in shares) 713,652 748,155
Stock options granted to executives 2,705,864  
Forfeited/Expired (in shares) (88,010) (34,503)
Outstanding at December 31 (in shares) 3,331,506 713,652