CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenues:
Grant revenue	$ 7,046	$ 4,930
Collaboration revenue - related party	95,802	46,076
Collaboration revenue	$ 933	$ 2,503
Type of Revenue [Extensible List]	License [Member]	License [Member]
Total revenues	$ 103,781	$ 53,509
Operating expenses:
Research and development	51,440	47,593
General and administrative	25,554	36,483
Impairment of assets	5,306	635
Restructuring	0	11,630
Total operating expenses	82,300	95,706
Income (loss) from operations	21,481	(42,197)
Other income (expense):
Interest income	3,937	1,106
Other income (expense), net	(14)	(55)
Interest expense related to the sale of future royalties	0	(2,605)
Loss on extinguishment of liability related to the sale of future royalties	0	(3,581)
Change in fair value of derivative liability	0	917
Total other income (expense), net	3,923	(4,218)
Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net, Total	25,404	(46,415)
Income tax expense	(2,598)	0
Net income (loss)	$ 22,806	$ (46,415)
Net loss per share attributable to common stockholders, basic	$ 0.43	$ (1.23)
Net loss per share attributable to common stockholders, diluted	$ 0.43	$ (1.23)
Basic weighted average common shares outstanding	52,703,467	37,585,075
Weighted Average Number of Shares Outstanding, Diluted	52,989,030	37,585,075
Comprehensive income (loss):
Net income (loss)	$ (22,806)	$ 46,415
Other comprehensive gain (loss):
Unrealized gain on marketable securities	0	2
Net unrealized gains (losses) on securities	0	2
Total comprehensive income (loss)	$ 22,806	$ (46,413)