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Summary of Significant Accounting Policies - Additional Information (Details) € in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) lease financialInstitution shares | Dec. 31, 2023 USD ($) | Dec. 31, 2024 EUR (€) lease financialInstitution shares
Property, Plant and Equipment [Line Items] |  |  |
Cash and cash equivalents | $ 35,668,000 | $ 46,674,000 |
Number of financial institutions used for cash deposits | financialInstitution | 2 |  | 2
Depreciation and amortization expense | $ 134,000 | 111,000 |
Impairment losses | 0 | 0 |
Australian research and development tax incentive | 37,000 | 670,000 |
Government assistance, amount | $ 700,000 | $ 3,300,000 |
Government Assistance, Income, Increase (Decrease), Statement of Income or Comprehensive Income [Extensible Enumeration] | Other income (expense), net | Other income (expense), net |
Number of existing operating leases | lease | 3 |  | 3
Prefunded stock 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 | $ 15,100,000 |  |
Investment interest rate (as a percent) | 4.30% |  | 4.30%
United States | Money market funds |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Investment interest rate (as a percent) | 4.30% |  | 4.30%
Germany |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cash and cash equivalents | $ 20,500,000 |  |
Australian research and development tax incentive | € |  |  | € 3.5
Germany | Money market funds | Minimum |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Investment interest rate (as a percent) | 2.75% |  | 2.75%
Germany | Money market funds | Maximum |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Investment interest rate (as a percent) | 3.25% |  | 3.25%
Australia |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Cash and cash equivalents | $ 100,000 |  |
Government R&D assistance rate (as a percent) | 43.50% |  |

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