Condensed Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Condensed Statements of Comprehensive (Loss) Income [Abstract]
License and collaborations revenue	$ 3,867	$ 11,935	$ 6,690	$ 17,358
Operating expenses:
General and administrative	2,894	2,055	10,918	8,680
Research and development	8,982	3,494	19,817	13,812
Total operating expenses	11,876	5,549	30,735	22,492
(Loss) income from operations	(8,009)	6,386	(24,045)	(5,134)
Financing costs (Note 6)	0	(1,328)	0	(1,328)
Fair value change in derivative liabilities	0	61	0	61
Other income, net	483	456	1,648	1,224
(Loss) income before income taxes	(7,526)	5,575	(22,397)	(5,177)
Provision for income taxes	0	(14)	0	(14)
Net (loss) income	(7,526)	5,561	(22,397)	(5,191)
Other comprehensive (loss) income, net of tax	0	0	0	0
Comprehensive (loss) income	$ (7,526)	$ 5,561	$ (22,397)	$ (5,191)
Net (loss) income per share (Note 10):
Basic (in dollars per share)	$ (0.29)	$ 0.26	$ (0.88)	$ (0.25)
Diluted (in dollars per share)	$ (0.29)	$ 0.25	$ (0.88)	$ (0.25)
Number of shares used in per share calculations:
Basic (in shares)	26,145,080	21,446,648	25,501,117	21,117,211
Diluted (in shares)	26,145,080	22,405,995	25,501,117	21,117,211