Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue:
Revenue	$ 7,803	$ 2,016
Costs and expenses:
Cost of product revenue	857	237
Research and development:
Noncash compensation	1,584	1,895
Other research and development	14,286	46,147
Total research and development	15,870	48,042
Selling, general and administrative:
Noncash compensation	5,240	226
Other selling, general and administrative	22,828	20,383
Total selling, general and administrative	28,068	20,609
Total costs and expenses	44,795	68,888
Operating loss	(36,992)	(66,872)
Other expense (income):
Interest expense	2,844	2,664
Other income	(604)	(523)
Total other expense (income), net	2,240	2,141
Net loss	$ (39,232)	$ (69,013)
Basic net loss per common share (in dollars per share)	$ (0.28)	$ (0.51)
Diluted net loss per common share (in dollars per share)	$ (0.28)	$ (0.51)
Weighted-average shares used in computing basic net loss per common share (in shares)	140,312,269	134,400,500
Weighted-average shares used in computing diluted net loss per common share (in shares)	140,312,269	134,400,500
Product revenue, net [Member]
Revenue:
Revenue	$ 7,765	$ 1,978
License revenue [Member]
Revenue:
Revenue	$ 38	$ 38