Annual report pursuant to Section 13 and 15(d)

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

v3.20.1
Stockholders' Equity and Stock-Based Compensation (Details 5) - USD ($)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Stockholders' Equity and Stock-Based Compensation (Details 5)    
Non-vested at beginning of period 139,085 128,561
Granted 91,229 148,705
Vested (145,449) (126,183)
Forfeited (11,998)
Non-vested at end of period 84,873 139,085
Fraction option shares to non-vested options holders due to the one-for-twelve reverse stock split on October 21, 2019   $ 8
Weighted average fair value grant date, beginning of period $ 6.48 $ 13.20
Weighted average fair value grant date, granted 2.74 8.40
Weighted average fair value grant date, vested 4.91 15.24
Weighted average fair value grant date, forfeited 9.96
Weighted average fair value grant date, end of period 5.15 6.48
Weighted average fair value grant date, Fraction option shares to non-vested options holders due to the one-for-twelve reverse stock split on October 21, 2019   6.48
Weighted average exercise price, beginning of period 10.92 18.96
Weighted average exercise price, granted 4.03 10.80
Weighted average exercise price, vested 6.65 18.96
Weighted average exercise price, forfeited 13.20
Weighted average exercise price, end of period $ 10.73 10.92
Weighted average exercise price, Fraction option shares to non-vested options holders due to the one-for-twelve reverse stock split on October 21, 2019   $ 10.92