v3.25.2
Summary of Significant Accounting Policies - Additional Information (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Feb. 05, 2024
USD ($)
OrdinaryShare
$ / shares
shares
Jun. 30, 2025
USD ($)
Mar. 31, 2025
USD ($)
Jun. 30, 2024
USD ($)
Mar. 31, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Summary Of Significant Accounting Policies [Line Items]                
Net loss   $ 27,354,000 $ 28,530,000 $ 19,755,000 $ 2,312,000 $ 55,884,000 $ 22,067,000  
Accumulated losses   529,844,000       529,844,000   $ 474,044,000
Cash outflows from operating activities           34,093,000 14,552,000  
Cash and cash equivalents and short-term investments   $ 114,200,000       114,200,000    
American Depositary Shares                
Summary Of Significant Accounting Policies [Line Items]                
Gross proceeds from private placement $ 120,000,000              
Open Market Sale Agreement | American Depositary Shares | Jefferies LLC                
Summary Of Significant Accounting Policies [Line Items]                
Gross proceeds from sale of stock               27,700,000
Placement agent fees and other expenses               900,000
Private Placement | American Depositary Shares                
Summary Of Significant Accounting Policies [Line Items]                
Placement agent fees and other expenses $ 7,700,000              
Sale of stock, number of shares issued | shares 5,714,286              
Number of ordinary shares in American Depositary Share | OrdinaryShare 3              
Sale of stock, price per share | $ / shares $ 21              
Gross proceeds from private placement $ 120,000,000              
Collaboration Agreement with AstraZeneca                
Summary Of Significant Accounting Policies [Line Items]                
Milestone payments received           $ 0 $ 10,000,000 10,000,000
Collaboration Agreement with Hansoh                
Summary Of Significant Accounting Policies [Line Items]                
Milestone payments received               $ 2,000,000