Consolidated Statements of Operations - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating expenses:
Research and development	$ 117,012,000	$ 85,068,000	$ 62,784,000
General and administrative	72,894,000	29,689,000	25,952,000
Total operating expenses	189,906,000	114,757,000	88,736,000
Loss from operations	(189,906,000)	(114,757,000)	(88,736,000)
Interest income, net	2,264,000	245,000	500,000
Gain on sale of IC100 & IC200	2,369,000	0	0
Other income (expense), net	62,000	(10,000)	(6,000)
Loss before income tax benefit	(185,211,000)	(114,522,000)	(88,242,000)
Income tax benefit	0	0	3,695,000
Net loss	$ (185,211,000)	$ (114,522,000)	$ (84,547,000)
Net loss per common share:
Basic (in dollars per share)	$ (1.53)	$ (1.12)	$ (1.14)
Diluted (in dollars per share)	$ (1.53)	$ (1.12)	$ (1.14)
Weighted average common shares outstanding:
Basic (in shares)	121,037	101,866	74,185
Diluted (in shares)	121,037	101,866	74,185