Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
Stock-Based Compensation - Summary of Stock Option Activity (Details) - $ / shares
9 Months Ended 12 Months Ended
Sep. 30, 2020
Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]    
Number of shares, beginning balance 643,879  
Number of shares, Granted 840,299  
Number of shares, Expired/forfeited/cancelled (22,500)  
Number of shares, ending balance 1,461,678 643,879
Number of shares, Vested 120,720  
Number of shares, Vested and expected to vest 1,461,678  
Weighted average exercise price, beginning balance $ 6.33  
Weighted average exercise price, Granted 3.48  
Weighted average exercise price, Granted, Expired/forfeited/cancelled 4.15  
Weighted average exercise price, ending balance 4.72 $ 6.33
Weighted average exercise price, Vested 6.33  
Weighted average exercise price, Vested and expected to vest $ 4.72  
Weighted average remaining contractual life 9 years 6 months 9 years 10 months 24 days
Weighted average remaining contractual life, Vested 9 years 2 months 12 days  
Weighted average remaining contractual life, Vested and expected to vest 9 years 6 months