Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Stock-Based Compensation (Details 3)

v3.19.1
Stockholders' Equity and Stock-Based Compensation (Details 3) - $ / shares
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Beginning of the period 3,976,884  
End of the year 5,604,154 3,976,884
Weighted Average Exercise Price Beginning of the period $ 3.58  
Weighted Average Exercise End of the yea 2.72 $ 3.58
Weighted Average Exercise Price Options exercisable $ 3.50 $ 4.84
Performance-based stock options [Member]    
Beginning of the period 3,976,884 2,172,581
Granted 1,784,455 1,854,277
Exercised  
Forfeited (143,980)
Expired (13,205) (49,974)
End of the year 5,604,154 3,976,884
Options exercisable 3,935,138 2,434,148
Weighted Average Exercise Price Beginning of the period $ 3.58 $ 6.70
Weighted Average Exercise Price Stock Options Granted 0.90 1.05
Weighted Average Exercise Price Stock Options Exercised  
Weighted Average Exercise Price Stock Options Forfeited 1.10
Weighted Average Exercise Price Stock Options Expired 30.60 45.53
Weighted Average Exercise End of the yea 2.72 3.58
Weighted Average Exercise Price Options exercisable 3.50 4.84
Weighted Average Fair Value Stock Options Beginning of the period 2.49 4.83
Weighted Average Fair Value Stock Options Granted 0.70 0.77
Weighted Average Fair Value Stock Options Exercised  
Weighted Average Fair Value Stock Options Forfeited 0.83
Weighted Average Fair Value Stock Options Expired 21.13 38.70
Weighted Average Fair Value Stock Options End of the yea 1.96 2.49
Weighted Average Fair Value Options exercisable $ 2.49 $ 3.36