Commitments and Contingencies - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	May 31, 2025	Dec. 31, 2024	Oct. 22, 2019	Aug. 31, 2004
Accrued Payments
Collaboration revenue	$ 0	$ 4,000	$ 2,000	$ 6,000
Prepaid expenses and other current assets	857,000		857,000			$ 1,659,000
Other long-term assets	$ 997,000		$ 997,000			$ 0
Warrant exercise per share	$ 3.64		$ 3.64		$ 4	$ 28.5
MD Anderson Warrant [Member]
Accrued Payments
Number of warrants							22,222
Warrant exercise per share							$ 1.5
Warrant expiry date							Dec. 31, 2026
The University of Texas MD Anderson Cancer Center and The Texas A & M University System [Member]
Accrued Payments
Milestone maximum payment								$ 4,500,000
The University of Texas MD Anderson Cancer Center and The Texas A & M University System [Member] | Royalty [Member]
Accrued Payments
Payment under license agreement			$ 0	0
Collaboration Agreement with Solasia Pharma KK [Member] | Royalty [Member]
Accrued Payments
Collaboration revenue		$ 4,000	2,000	$ 6,000
M D Anderson License and The 2015 and 2019 Research and Development Agreement [Member]
Accrued Payments
Clinical expenses	$ 0		$ 0