Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Stock Option Activity (Details)

v3.20.1
Stock-Based Compensation - Stock Option Activity (Details) - Options - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Number of Shares    
Outstanding, beginning balance (in shares) 3,058,349  
Options granted (in shares) 100,000  
Options forfeited (in shares) (334)  
Options exercised (in shares) (95,000)  
Outstanding, ending balance (in shares) 3,063,015 3,058,349
Options vested and exercisable (in shares) 2,132,356  
Weighted Average Exercise Price per Share    
Outstanding, beginning balance (in dollars per shares) $ 3.26  
Options granted (in dollars per share) 17.18  
Options forfeited (in dollars per shares) 10.28  
Options exercised (in dollars per shares) 0.41  
Outstanding, end balance (in dollars per shares) 3.80 $ 3.26
Options vested and exercisable (in dollars per shares) $ 2.06  
Options    
Intrinsic value, Outstanding, beginning balance $ 34,725  
Intrinsic value, Outstanding, end balance 56,901 $ 34,725
Intrinsic value, vested and exercisable $ 43,269  
Weighted average remaining contractual life, Outstanding, Beginning 7 years 9 months 18 days 8 years
Weighted average remaining contractual life, granted 9 years 9 months 18 days  
Weighted average remaining contractual life, vested and exercisable 7 years 7 months 6 days