Summary of Significant Accounting Policies - Fair Value Measurements (Details) - USD ($)	Dec. 29, 2024	Jun. 30, 2025	Dec. 31, 2024
Liabilities:
Warrant liabilities		$ 8,000	$ 42,494,000
Securities Purchase Agreement \| Pre-funded Warrants
Liabilities:
Shares into which each warrant can be converted (in shares)	1
Securities Purchase Agreement \| Class A units
Liabilities:
Units issued	3,630,205
Number of shares in one unit	1
Securities Purchase Agreement \| Class A units \| Pre-funded Warrants
Liabilities:
Number of warrants in one unit	1
Securities Purchase Agreement \| Class A units \| Series A Warrants
Liabilities:
Number of shares in one unit	1
Number of warrants in one unit	1
Securities Purchase Agreement \| Class B units
Liabilities:
Units issued	289,044
Securities Purchase Agreement \| Class B units \| Pre-funded Warrants
Liabilities:
Number of warrants in one unit	1
Securities Purchase Agreement \| Class B units \| Series A Warrants
Liabilities:
Number of warrants in one unit	1
Recurring basis \| Level 1 \| Money market funds
Assets:
Cash equivalents		12,066,000	20,508,000
Recurring basis \| Level 2 \| Pre-funded Warrants
Liabilities:
Warrant liabilities			29,369,000
Recurring basis \| Level 3 \| Series A Warrants
Liabilities:
Warrant liabilities		$ 8,000	$ 13,125,000