Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
Stock-Based Compensation - Summary of Stock Option Activity (Details) - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]    
Number of shares, beginning balance 643,879  
Number of shares, Granted 1,931,919 643,879
Number of shares, Expired/forfeited/cancelled (291,500)  
Number of shares, ending balance 2,284,298 643,879
Number of shares, Vested 160,965  
Number of shares, Vested and expected to vest 2,284,298  
Weighted average exercise price, beginning balance $ 6.33  
Weighted average exercise price, Granted 2.15 $ 6.33
Weighted average exercise price, Granted, Expired/forfeited/cancelled 3.87  
Weighted average exercise price, ending balance 3.10 $ 6.33
Weighted average exercise price, Vested 6.33  
Weighted average exercise price, Vested and expected to vest $ 3.10  
Weighted average remaining contractual life 9 years 1 month 6 days 9 years 10 months 24 days
Weighted average remaining contractual life, Vested 8 years 8 months 12 days  
Weighted average remaining contractual life, Vested and expected to vest 9 years 1 month 6 days