Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Schedule of Stock Option Activity) (Details)

v3.19.1
Stockholders' Equity (Schedule of Stock Option Activity) (Details)
3 Months Ended
Mar. 31, 2019
$ / shares
shares
Shares  
Outstanding, December 31, 2018 | shares 465,303
Granted | shares 2,630,821
Expired | shares (1,338)
Forfeited | shares (86,032)
Outstanding, March 31, 2019 | shares 3,008,754
Weighted Average Exercise Price  
Outstanding, December 31, 2018 | $ / shares $ 11.60
Granted | $ / shares 1.06
Exercised | $ / shares 20.54
Forfeited | $ / shares 1.76
Outstanding, March 31, 2019 | $ / shares $ 2.66