Quarterly report pursuant to Section 13 or 15(d)

Stockholders equity (Details)

v3.22.2.2
Stockholders equity (Details) - USD ($)
9 Months Ended
Apr. 08, 2022
Aug. 10, 2020
Sep. 30, 2022
Sales Agreement      
Shareholders' equity      
Remaining amount under the Sales Agreement (in shares)     $ 197,360,000
Sales Agreement | Maximum      
Shareholders' equity      
Aggregate offering price of ADS shares under At The Market sales agreement   $ 200,000,000  
2022 Sales Agreement      
Shareholders' equity      
Remaining amount under the Sales Agreement (in shares)     $ 188,149,700
Sold shares represented by American Depositary Shares (in shares)     6,681,506
Number of ordinary shares sold (in shares)     40,089,036
Net proceeds     $ 11,413,652
2022 Sales Agreement | Maximum      
Shareholders' equity      
Aggregate offering price of ADS shares under At The Market sales agreement $ 200,000,000