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Summary of Significant Accounting Policies - Additional Information (Details) € in Millions	3 Months Ended
	Mar. 31, 2026 USD ($) financialInstitution lease shares	Mar. 31, 2025 USD ($) shares	Mar. 31, 2026 EUR (€) financialInstitution lease shares	Dec. 31, 2025 USD ($)	May 28, 2025 shares
Property, Plant and Equipment [Line Items]
Cash and cash equivalents	$ 186,629,000			$ 15,483,000
Number of financial institutions used for cash deposits \| financialInstitution	2		2
Depreciation and amortization expense	$ 33,000	$ 43,000
Impairment losses	0	0
Government assistance, amount	$ 0	$ 1,100,000
Number of existing operating leases \| lease	3		3
January 2024 Pre-Funded Warrants
Property, Plant and Equipment [Line Items]
Warrant exercised (in shares) \| shares	858,015		858,015
May 2025 Pre-Funded Warrants
Property, Plant and Equipment [Line Items]
Warrant exercised (in shares) \| shares	5,119,867		5,119,867
Shares reserved for the February 2026 Pre-funded warrants
Property, Plant and Equipment [Line Items]
Warrant exercised (in shares) \| shares	22,907,600		22,907,600
Shares reserved for the January 2024 Pre-funded stock warrants
Property, Plant and Equipment [Line Items]
Warrant exercised (in shares) \| shares		1,119,356			8,666,667
United States
Property, Plant and Equipment [Line Items]
Cash and cash equivalents	$ 137,900,000
Investment interest rate (as a percent)	3.54%		3.54%
United States \| Money market funds
Property, Plant and Equipment [Line Items]
Investment interest rate (as a percent)	3.54%		3.54%
Germany
Property, Plant and Equipment [Line Items]
Cash and cash equivalents	$ 48,600,000
Australian research and development tax incentive \| €			€ 4.2
Australia
Property, Plant and Equipment [Line Items]
Cash and cash equivalents	$ 100,000
Government R&D assistance rate (as a percent)	43.50%
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 (as a percent)	1.60%		1.60%
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 (as a percent)	2.20%		2.20%