Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Stock-Based Compensation (Details 5)

v3.19.1
Stockholders' Equity and Stock-Based Compensation (Details 5) - $ / shares
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Weighted Average Remaining Contractual Life - Years 8 years 26 days 8 years 4 months 14 days
Number of options outstanding 5,604,154 3,976,884
Weighted Average Exercise Price Stock Options Outstanding $ 2.72 $ 3.58
Number of Awards Vested 3,935,138 2,434,148
Weighted Average Exercise Price $ 3.50 $ 4.84
Weighted Average Remaining Contractual Life of Stock Options Vested 7 years 5 months 1 day 7 years 8 months 12 days
Range One [Member]    
Exercise price lower range limit $ 0.90 $ 1.05
Exercise price upper range limit $ 1.04 $ 2.00
Weighted Average Remaining Contractual Life - Years 9 years 7 months 6 days 9 years 6 months 21 days
Number of options outstanding 1,616,402 2,528,666
Weighted Average Exercise Price Stock Options Outstanding $ 0.90 $ 1.18
Number of Awards Vested 1,197,708
Weighted Average Exercise Price $ 1.33
Weighted Average Remaining Contractual Life of Stock Options Vested 0 years 9 years 3 months 11 days
Range Two [Member]    
Exercise price lower range limit $ 1.05 $ 2.01
Exercise price upper range limit $ 2.00 $ 6.00
Weighted Average Remaining Contractual Life - Years 8 years 6 months 25 days 7 years 10 months 10 days
Number of options outstanding 2,560,330 821,174
Weighted Average Exercise Price Stock Options Outstanding $ 1.18 $ 4.59
Number of Awards Vested 2,507,716 651,429
Weighted Average Exercise Price $ 1.18 $ 4.58
Weighted Average Remaining Contractual Life of Stock Options Vested 8 years 6 months 21 days 7 years 10 months 10 days
Range Three [Member]    
Exercise price lower range limit $ 2.01 $ 6.01
Exercise price upper range limit $ 6.00 $ 20.00
Weighted Average Remaining Contractual Life - Years 6 years 10 months 10 days 5 years 1 month 13 days
Number of options outstanding 813,583 505,694
Weighted Average Exercise Price Stock Options Outstanding $ 4.59 $ 7.47
Number of Awards Vested 813,583 463,661
Weighted Average Exercise Price $ 4.59 $ 7.58
Weighted Average Remaining Contractual Life of Stock Options Vested 6 years 10 months 10 days 4 years 11 months 4 days
Range Four [Member]    
Exercise price lower range limit $ 6.01 $ 20.01
Exercise price upper range limit $ 20.00 $ 45.00
Weighted Average Remaining Contractual Life - Years 4 years 1 month 27 days 1 year 7 months 28 days
Number of options outstanding 501,334 118,016
Weighted Average Exercise Price Stock Options Outstanding $ 7.48 $ 29.85
Number of Awards Vested 501,334 118,016
Weighted Average Exercise Price $ 7.48 $ 29.85
Weighted Average Remaining Contractual Life of Stock Options Vested 4 years 1 month 27 days 1 year 7 months 28 days
Range Five [Member]    
Exercise price lower range limit $ 20.01 $ 45.01
Exercise price upper range limit $ 43.25 $ 72.00
Weighted Average Remaining Contractual Life - Years 8 months 19 days 2 months 5 days
Number of options outstanding 112,505 3,334
Weighted Average Exercise Price Stock Options Outstanding $ 2.72 $ 50.25
Number of Awards Vested 112,505 3,334
Weighted Average Exercise Price $ 29.46 $ 50.25
Weighted Average Remaining Contractual Life of Stock Options Vested 8 months 19 days 2 months 5 days