XML 47 R37.htm IDEA: XBRL DOCUMENT v3.22.2
Share-Based Compensation - 2017 Equity Incentive Plan (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
USD ($)
shares
Jun. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
day
shares
Jun. 30, 2021
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares available for grant (in shares) | shares 1,037,283   1,037,283  
Share-based compensation expense $ 3,178 $ 1,904 $ 6,306 $ 3,570
Research and development        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation expense 1,830 934 3,622 1,735
General and administrative        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation expense $ 1,348 $ 970 $ 2,684 $ 1,835
Ordinary shares | 2017 Equity Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized (in shares) | shares 1,810,688   1,810,688  
Share options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation expense     $ 3,500  
Options vested due to accelerated vesting (in shares) | shares     866,268  
Share options | Research and development        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation expense     $ 1,400  
Share options | General and administrative        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation expense     $ 2,100  
Share options | 2017 Equity Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expiration period     10 years  
Share options | 2017 Equity Incentive Plan | Options Granted Before June 30, 2020        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period     1 year  
Award vesting percentage (in percent)     25.00%  
Vesting percentage if listed on a stock exchange     100.00%  
Share options | 2017 Equity Incentive Plan | Share-based Payment Arrangement, Tranche one        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting percentage (in percent)     33.30%  
Share options | 2017 Equity Incentive Plan | Share-based Payment Arrangement, Tranche one | Grant Date June 30, 2020        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period     1 year  
Award vesting percentage (in percent)     25.00%  
Share options | 2017 Equity Incentive Plan | Share-based Payment Arrangement, Tranche two | Grant Date June 30, 2020        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period     3 years  
Award vesting percentage (in percent)     75.00%  
Share options | 2017 Equity Incentive Plan | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period     3 years  
Share options | 2017 Equity Incentive Plan | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period     4 years  
Restricted Stock Units (RSUs) | 2017 Equity Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period     4 years  
Award vesting percentage (in percent)     25.00%  
Restricted Stock Units (RSUs) | 2017 Equity Incentive Plan | Share-based Payment Arrangement, Tranche one | Grant Date June 30, 2020        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting percentage (in percent)     25.00%  
Percentage amount closing price is higher than listing price     20.00%  
Expiration period     1 year  
Threshold consecutive trading days | day     5