XML 65 R51.htm IDEA: XBRL DOCUMENT v3.10.0.1
Stock-Based Compensation and Stock Options - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Shares        
Options outstanding, beginning (in shares) 950,000 600,000 775,000  
Options granted (in shares) 250,000 400,000 150,000  
Options forfeited and canceled (in shares) (150,000) (50,000) (325,000)  
Options outstanding, ending (in shares) 1,050,000 950,000 600,000 775,000
Weighted-Average Exercise Price        
Options outstanding, weighted average exercise price, beginning (in dollars per share) $ 8.75 $ 9.93 $ 12.78  
Options granted, weighted average exercise price (in dollars per share) 15.47 6.95 8.55  
Options forfeited and canceled, weighted average exercise price (in dollars per share) 14.68 8.55 16.09  
Options outstanding, weighted average exercise price, ending (in dollars per share) $ 9.50 $ 8.75 $ 9.93 $ 12.78
Exercisable and fully vested (in shares) 716,667      
Exercisable and fully vested, weighted average exercise price (in dollars per share) $ 9.31      
Options outstanding weighted-average remaining contractual life 7 years 6 months 11 days 8 years 5 months 23 days 8 years 6 months 20 days 5 years 6 months 11 days
Options exercisable weighted-average remaining contractual life 7 years 1 month 27 days      
Vested and expected to vest, outstanding, aggregate intrinsic value (in dollars) $ 1,920 $ 0 $ 0 $ 120
Vested and expected to vest, exercisable, aggregate intrinsic value (in dollars) $ 1,344      
Outstanding and expected to vest thereafter (in shares) 333,333      
Outstanding and expected to vest thereafter, weighted average exercise price (in dollars per share) $ 9.92      
Outstanding and expected to vest, weighted average remaining contractual life (in years) 8 years 3 months 22 days      
Outstanding and expected to vest, aggregate intrinsic value (in dollars) $ 576