Stockholders' Equity - Common Stock Reserved for Issuance (Details) - shares	Sep. 30, 2025	Dec. 31, 2024
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Common stock reserved for future issuance	21,171,631	19,657,740
Employee Stock Option
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Common stock reserved for future issuance	12,580,264	9,711,075
Restricted Stock Units Outstanding
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Common stock reserved for future issuance	1,800,089	2,463,601
Shares Reserved for Future Issuance
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Common stock reserved for future issuance	5,134,310	4,295,342
Pre-Funded Warrant Shares
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Common stock reserved for future issuance		1,611,215
Apexigen Replacement Warrants
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Common stock reserved for future issuance	1,003,191	1,003,191
Employee Stock Purchase Plan
Schedule Of Common Stock Reserved For Future Issuance [Line Items]
Common stock reserved for future issuance	653,777	573,316