CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue:
Federal contract revenue	$ 152	$ 7,048
Total revenue	7,679	10,380
Expenses:
Research and development	24,118	27,933
Selling, general and administrative	18,626	15,204
Total expenses	43,500	43,343
Loss from operations	(35,821)	(32,963)
Interest income	1,462	2,343
Interest expense	(4,346)	(4,147)
Other income, net	36	37
Net loss applicable to common shareholders	$ (38,669)	$ (34,730)
Per share information:
Net loss per share of common stock-basic	$ (0.68)	$ (0.67)
Net loss per share of common stock-diluted	$ (0.68)	$ (0.67)
Basic weighted average shares outstanding	56,851,811	51,769,685
Diluted weighted average shares outstanding	56,851,811	51,769,685
Other comprehensive income:
Unrealized gain on available-for-sale securities	$ 20	$ 74
Total comprehensive loss	(38,649)	(34,656)
Product revenue, net
Revenue:
Revenue	7,509	3,332
Expenses:
Cost of product revenue	756	$ 206
Collaboration revenue
Revenue:
Revenue	$ 18