Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details)	1 Months Ended		3 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Mar. 31, 2024 USD ($) Segment	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Accounting Policies [Line Items]
Net loss			$ 16,617,000	$ 15,323,000
Cash flows used in operating activities			17,593,000	11,596,000
Accumulated deficit			171,072,000		$ 154,455,000
Cash cash equivalents and investments			$ 118,100,000
Number of operating segments | Segment			1
Number of reportable Segments | Segment			1
Assumed dividend yield			$ 0
Cash and cash equivalents			24,693,000		15,647,000
Investments			93,400,000		118,800,000
Maximum amount eligible to receive under cost-reimbursement contract award		$ 17,800,000
Net unrealized gain (loss) on available-for-sale investments			(200,000)	200,000
UGARF
Accounting Policies [Line Items]
Grant award amount		$ 1,400,000
BMGF
Accounting Policies [Line Items]
Grant award amount	$ 1,800,000
Initial Public Offering
Accounting Policies [Line Items]
Net loss			16,600,000	15,300,000
Cash flows used in operating activities			17,600,000	$ 11,600,000
Accumulated deficit			$ 171,100,000		$ 154,500,000