Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Summary of Outstanding Stock Option Activity (Details)

v3.19.3
Stock Based Compensation - Summary of Outstanding Stock Option Activity (Details)
9 Months Ended
Sep. 30, 2019
$ / shares
shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Number of shares, Beginning balance | shares 1,407,000
Number of shares, Granted | shares 770,000
Number of shares, Exercised | shares (148,000)
Number of shares, Expired/Forfeited | shares (163,000)
Number of shares, Ending balance | shares 1,866,000
Number of shares, Vested and exercisable | shares 756,000
Number of shares, Vested and expected to vest | shares 1,866,000
Weighted average exercise price, Beginning balance | $ / shares $ 8.73
Weighted average exercise price, Granted | $ / shares 11.79
Weighted average exercise price, Exercised | $ / shares 4.59
Weighted average exercise price, Expired/Forfeited | $ / shares 11.36
Weighted average exercise price, Ending balance | $ / shares 10.09
Weighted average exercise price, Vested and exercisable | $ / shares 8.38
Weighted average exercise price, Vested and expected to vest | $ / shares $ 10.09
Weighted average remaining contractual term (years) 8 years 1 month 6 days
Weighted average remaining contractual term (years), Vested and exercisable 6 years 7 months 6 days
Weighted average remaining contractual term (years), Vested and expected to vest 8 years 1 month 6 days