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Summary of Significant Accounting Policies - Additional Information (Details) € in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2024 USD ($) lease financialInstitution shares | Mar. 31, 2023 USD ($) | Mar. 31, 2024 EUR (€) lease financialInstitution shares | Dec. 31, 2023 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |
Cash and cash equivalents | $ 97,312,000 |  |  | $ 46,674,000
Number of financial institutions used for cash deposits | financialInstitution | 2 |  | 2 |
Depreciation expense | $ 26,000 | $ 32,000 |  |
Impairment losses | 0 | 0 |  |
Australian research and development tax incentive | 676,000 |  |  | $ 670,000
Government assistance, amount | $ 36,000 | $ 1,800,000 |  |
Government Assistance, Statement of Income or Comprehensive Income [Extensible Enumeration] | Nonoperating Income (Expense) | Nonoperating Income (Expense) |  |
Number of existing operating leases | lease | 3 |  | 3 |
Pre-funded stock warrants |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Warrant exercised (in shares) | shares | 11,193,564 |  | 11,193,564 |
United States |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Cash and cash equivalents | $ 73,200,000 |  |  |
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 | $ 22,500,000 |  |  |
Australian research and development tax incentive | € |  |  | € 1 |
Australia |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Cash and cash equivalents | $ 1,600,000 |  |  |
Government R&D assistance rate | 43.50% |  |  |
Maximum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Estimated useful life (in years) | 13 years |  | 13 years |
Lease term (in months) | 60 months |  | 60 months |
Maximum | Germany | Money market funds |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Investment interest rate | 3.75% |  | 3.75% |
Minimum |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Estimated useful life (in years) | 3 years |  | 3 years |
Lease term (in months) | 12 months |  | 12 months |
Minimum | Germany | Money market funds |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Investment interest rate | 3.50% |  | 3.50% |

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