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Summary of Significant Accounting Policies - Additional Information (Details) € in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($) financialInstitution lease shares	Jun. 30, 2024 USD ($) shares	Jun. 30, 2025 USD ($) financialInstitution lease shares	Jun. 30, 2024 USD ($) shares	Jun. 30, 2025 EUR (€) financialInstitution lease shares	Dec. 31, 2024 USD ($)
Property, Plant and Equipment [Line Items]
Cash and cash equivalents	$ 55,310,000		$ 55,310,000			$ 35,668,000
Number of financial institutions used for cash deposits | financialInstitution	2		2		2
Depreciation expense	$ 43,000	$ 31,000	$ 86,000	$ 57,000
Impairment losses			0	0
Government Assistance, Expense, Decrease (Increase), Statement of Income or Comprehensive Income [Extensible Enumeration]	Nonoperating Income (Expense)
Government assistance, expense	$ 7,000
Government assistance, income		$ 3,000	$ 1,000,000	$ 39,000
Government Assistance, Statement of Income or Comprehensive Income [Extensible Enumeration]		Nonoperating Income (Expense)	Nonoperating Income (Expense)	Nonoperating Income (Expense)
Number of existing leases | lease	3		3		3
January 2024 Pre-Funded Warrants
Property, Plant and Equipment [Line Items]
Warrant exercised (in shares) | shares	8,580,507	11,193,564	8,580,507	11,193,564	8,580,507
May 2025 Pre-Funded Warrants
Property, Plant and Equipment [Line Items]
Warrant exercised (in shares) | shares	86,666,667		86,666,667		86,666,667
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	$ 47,900,000		$ 47,900,000
Investment interest rate (as a percent)	4.10%		4.10%		4.10%
United States | Money market funds
Property, Plant and Equipment [Line Items]
Investment interest rate (as a percent)	4.10%		4.10%		4.10%
Germany
Property, Plant and Equipment [Line Items]
Cash and cash equivalents	$ 7,300,000		$ 7,300,000
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)	1.60%		1.60%		1.60%
Germany | Money market funds | Maximum
Property, Plant and Equipment [Line Items]
Investment interest rate (as a percent)	3.25%		3.25%		3.25%
Australia
Property, Plant and Equipment [Line Items]
Cash and cash equivalents	$ 100,000		$ 100,000
Government R&D assistance rate (as a percent)			43.50%

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