Current report filing

Note 8 - Stock-based Compensation - Stock Option Transactions (Details)

v3.19.1
Note 8 - Stock-based Compensation - Stock Option Transactions (Details)
$ / shares in Units, shares in Thousands, $ in Thousands
 6 Months Ended
Jun. 30, 2018
USD ($)
$ / shares
shares
Outstanding, beginning of year (in shares) | shares 2,344
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 3.46
Granted (in shares) | shares 2,084
Granted, weighted average exercise price (in dollars per share) | $ / shares $ 2.96
Exercised (in shares) | shares (77)
Exercised, weighted average exercise price (in dollars per share) | $ / shares $ 2.31
Expired (in shares) | shares
Expired, weighted average exercise price (in dollars per share) | $ / shares
Forfeited (in shares) | shares (18)
Forfeited, weighted average exercise price (in dollars per share) | $ / shares $ 2.01
Outstanding, end of the period (in shares) | shares 4,333
Outstanding, weighted average exercise price (in dollars per share) | $ / shares $ 3.16
Outstanding, weighted average remaining contractual life (Year) 8 years 73 days
Outstanding, intrinsic value | $ $ 4,486,981
Exercisable, end of the period (in shares) | shares 2,561
Exercisable, end of the Exercisable, weighted average exercise price (in dollars per share) | $ / shares $ 3.51
Exercisable, weighted average remaining contractual life (Year) 7 years 182 days
Exercisable, intrinsic value | $ $ 2,180,402
Vested and expected to vest, end of the period (in shares) | shares 4,067
Vested and expected to vest, weighted average exercise price (in dollars per share) | $ / shares $ 3.20
Vested and expected to vest, weighted average remaining contractual life (Year) 8 years 73 days
Vested and expected to vest, intrinsic value | $ $ 4,140,994