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Summary of Significant Accounting Policies - Additional Information (Details) € in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) lease financialInstitution shares	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) lease financialInstitution shares	Sep. 30, 2023 USD ($)	Sep. 30, 2024 EUR (€) lease financialInstitution shares	Dec. 31, 2023 USD ($)
Property, Plant and Equipment [Line Items]
Cash and cash equivalents	$ 59,071,000		$ 59,071,000			$ 46,674,000
Number of financial institutions used for cash deposits | financialInstitution	2		2		2
Depreciation expense	$ 42,000	$ 34,000	$ 99,000	$ 88,000
Impairment losses	0	0	0	0
Australian research and development tax incentive	39,000		39,000			$ 670,000
Government assistance, amount	$ 700,000	$ 200,000	$ 700,000	$ 2,300,000
Government Assistance, Statement of Income or Comprehensive Income [Extensible Enumeration]			Nonoperating Income (Expense)	Nonoperating Income (Expense)
Number of existing leases | lease	3		3		3
Pre-Funded Warrants
Property, Plant and Equipment [Line Items]
Warrant exercised (in shares) | shares	11,193,564		11,193,564		11,193,564
Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	3 years		3 years		3 years
Lease term (in months)	12 months		12 months		12 months
Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	13 years		13 years		13 years
Lease term (in months)	60 months		60 months		60 months
United States
Property, Plant and Equipment [Line Items]
Cash and cash equivalents	$ 40,600,000		$ 40,600,000
Investment interest rate (as percent)	4.80%		4.80%		4.80%
United States | Money market funds
Property, Plant and Equipment [Line Items]
Investment interest rate (as percent)	4.80%		4.80%		4.80%
Germany
Property, Plant and Equipment [Line Items]
Cash and cash equivalents	$ 15,600,000		$ 15,600,000
Australian research and development tax incentive | €					€ 3.5
Germany | Money market funds | Minimum
Property, Plant and Equipment [Line Items]
Investment interest rate (as percent)	3.25%		3.25%		3.25%
Germany | Money market funds | Maximum
Property, Plant and Equipment [Line Items]
Investment interest rate (as percent)	3.75%		3.75%		3.75%
Australia
Property, Plant and Equipment [Line Items]
Cash and cash equivalents	$ 2,900,000		$ 2,900,000
Government R&D assistance rate			43.50%

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