CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenues:
Grant revenue	$ 2,387	$ 4,180	$ 3,150	$ 9,243
Collaboration revenue - related party	11,802	5,903	16,901	9,967
Collaboration revenue	$ 0	$ 114	$ 12	$ 254
Type of Revenue [Extensible List]	us-gaap:LicenseMember	us-gaap:LicenseMember	us-gaap:LicenseMember	us-gaap:LicenseMember
Total revenues	$ 14,189	$ 10,197	$ 20,063	$ 19,464
Operating expenses:
Research and development	10,672	23,725	24,278	41,057
General and administrative	5,878	5,533	12,702	11,450
Restructuring	83	0	258	0
Total operating expenses	16,633	29,258	37,238	52,507
Loss from operations	(2,444)	(19,061)	(17,175)	(33,043)
Other income (expense):
Interest income	740	1,198	1,604	2,525
Other income (expense), net	4	1	5	(13)
Total other income, net	744	1,199	1,609	2,512
Net loss and comprehensive loss	$ (1,700)	$ (17,862)	$ (15,566)	$ (30,531)
Net loss per share attributable to common stockholders, basic	$ (0.03)	$ (0.33)	$ (0.28)	$ (0.57)
Net loss per share attributable to common stockholders, diluted	$ (0.03)	$ (0.33)	$ (0.28)	$ (0.57)
Weighted average common shares outstanding, basic	56,026,767	53,957,766	55,703,275	53,740,901
Weighted average common shares outstanding, diluted	56,026,767	53,957,766	55,703,275	53,740,901