Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating expenses:
Research and development (including related party expenses of $0, $2,359 and $1,331 in 2022, 2021 and 2020, respectively)	$ 169,451	$ 78,411	$ 73,564
Acquired manufacturing rights (Note 6)	22,995	0	0
General and administrative	39,810	25,259	16,017
Total operating expenses	232,256	103,670	89,581
Loss from operations	(232,256)	(103,670)	(89,581)
Other income (expense), net:
Interest expense	(2)	(7)	(7)
Interest income	8,356	344	244
Grant income	1,931	1,585	2,478
Realized gains on marketable securities	0	2
Loss on disposal of fixed assets	(44)	0	0
Foreign currency transaction (losses) gains	(1,470)	1,669	(2,351)
Total other income (expense), net	8,771	3,593	364
Net loss	$ (223,485)	$ (100,077)	$ (89,217)
Earnings Per Share Basic	$ (3.44)	$ (1.93)	$ (3.02)
Earnings Per Share Diluted	$ (3.44)	$ (1.93)	$ (3.02)
Weighted Average Number Of Shares Outstanding Basic	64,877,988	51,922,108	29,545,810
Weighted Average Number Of Diluted Shares Outstanding	64,877,988	51,922,108	29,545,810