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Summary of Significant Accounting Policies - Additional Information (Details)
 3 Months Ended 6 Months Ended
Jun. 30, 2024
USD ($)
financialInstitution
lease
shares
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
financialInstitution
lease
shares
Jun. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
Property, Plant and Equipment [Line Items]          
Cash and cash equivalents $ 79,698,000   $ 79,698,000   $ 46,674,000
Number of financial institutions used for cash deposits | financialInstitution 2   2    
Depreciation expense $ 31,000 $ 22,000 $ 57,000 $ 54,000  
Impairment losses     0 0  
Australian research and development tax incentive 696,000   696,000   $ 670,000
Government assistance, amount $ 3,000 $ 301,000 $ 39,000 $ 2,100,000  
Government Assistance, Statement of Income or Comprehensive Income [Extensible Enumeration]     Nonoperating Income (Expense) Nonoperating Income (Expense)  
Number of existing leases | lease 3   3    
Pre-Funded Warrants          
Property, Plant and Equipment [Line Items]          
Warrant exercised (in shares) | shares 11,193,564   11,193,564    
Minimum          
Property, Plant and Equipment [Line Items]          
Estimated useful life (in years) 3 years   3 years    
Lease term (in months) 12 months   12 months    
Maximum          
Property, Plant and Equipment [Line Items]          
Estimated useful life (in years) 13 years   13 years    
Lease term (in months) 60 months   60 months    
United States          
Property, Plant and Equipment [Line Items]          
Cash and cash equivalents $ 57,300,000   $ 57,300,000    
Investment interest rate 5.20%   5.20%    
United States | Money market funds          
Property, Plant and Equipment [Line Items]          
Investment interest rate 5.20%   5.20%    
Germany          
Property, Plant and Equipment [Line Items]          
Cash and cash equivalents $ 20,900,000   $ 20,900,000    
Australian research and development tax incentive $ 1,000,000   $ 1,000,000    
Germany | Money market funds | Minimum          
Property, Plant and Equipment [Line Items]          
Investment interest rate 3.50%   3.50%    
Germany | Money market funds | Maximum          
Property, Plant and Equipment [Line Items]          
Investment interest rate 3.75%   3.75%    
Australia          
Property, Plant and Equipment [Line Items]          
Cash and cash equivalents $ 1,500,000   $ 1,500,000    
Government R&D assistance rate     43.50%