Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue
Revenues	$ 4,658	$ 5,952	$ 15,996	$ 32,774
Operating expenses
Research and development	20,169	20,055	56,136	61,459
General and administrative	5,842	3,493	17,374	13,585
Change in fair value of contingent consideration	205	215	(158)	624
Total operating expenses	26,216	23,763	73,352	75,668
Loss from operations	(21,558)	(17,811)	(57,356)	(42,894)
Interest income	1,494	694	4,223	1,249
Interest expense	(46)	(429)	(415)	(1,417)
Foreign exchange (gain) loss	6	(21)	11	(18)
Total other income (loss)	1,454	244	3,819	(186)
Loss before income taxes	(20,104)	(17,567)	(53,537)	(43,080)
Income tax expense	0	0	0	(4,444)
Net loss	$ (20,104)	$ (17,567)	$ (53,537)	$ (47,524)
Loss per share
Basic (in USD per share)	$ (0.12)	$ (0.12)	$ (0.32)
Diluted (in USD per share)	$ (0.12)	$ (0.12)	$ (0.32)	$ (0.32)
Weighted average number of common shares
Basic (in shares)	167,512,708	150,995,191	165,085,243
Diluted (in shares)	167,512,708	150,995,191	165,085,243	149,385,999
Comprehensive loss
Unrealized gain (loss) on available-for-sale securities	$ 584	$ (907)	$ 1,604	$ (2,669)
Comprehensive loss	(19,520)	(18,474)	(51,933)	(50,193)
Collaborations and licenses
Revenue
Revenues	3,935	3,607	13,329	27,381
Non-cash royalty revenue
Revenue
Revenues	$ 723	$ 2,345	$ 2,667	$ 5,393