License, Collaboration and Success Payment Agreements - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Oct. 31, 2020 USD ($) $ / shares	Dec. 31, 2018 USD ($) $ / shares
Series A Convertible Preferred Stock
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Convertible preferred stock, par value (in dollars per share) | $ / shares						$ 36.58	$ 36.58
Fred Hutch | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Potential aggregate success payments	$ 0		$ 0
Term of success payment agreement							9 years
Trigger period from IPO date							1 year
Trigger period thereafter							2 years
Fair value of potential success payments due	200,000		200,000		$ 100,000
Success payment expense (reversal)	200,000	$ (100,000)	100,000	$ (400,000)
Fred Hutch | Minimum | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Multiple of initial equity value at issuance							10
Potential aggregate success payments							$ 10,000,000
Per share common stock price required for payment (in dollars per share) | $ / shares							$ 365.76
Fred Hutch | Maximum | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Multiple of initial equity value at issuance							50
Potential aggregate success payments							$ 200,000,000
Per share common stock price required for payment (in dollars per share) | $ / shares							$ 1,828.8
Stanford | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Potential aggregate success payments	0		0
Term of success payment agreement						9 years
Trigger period from IPO date						1 year
Trigger period thereafter						2 years
Success payment expense (reversal)	300,000	$ 0	100,000	$ (300,000)
Success payment liability	$ 400,000		$ 400,000		$ 300,000
Stanford | Minimum | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Multiple of initial equity value at issuance						10
Potential aggregate success payments						$ 10,000,000
Per share common stock price required for payment (in dollars per share) | $ / shares						$ 365.76
Stanford | Maximum | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Multiple of initial equity value at issuance						50
Potential aggregate success payments						$ 200,000,000
Per share common stock price required for payment (in dollars per share) | $ / shares						$ 1,828.8