Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Gross Profit [Abstract]
Product revenue, net	$ 682	$ 0
Cost of revenue	167	0
Gross Profit	515	0
Operating expenses:
Research and development (includes related party amounts of $760 and $2,123, respectively)	49,899	71,441
Selling, general and administrative (includes related party amounts of $55 and $0, respectively)	117,928	100,999
Total operating expenses	167,827	172,440
Loss from operations	(167,312)	(172,440)
Other income (expense):
Interest income	7,876	2,132
Interest expense	(41,968)	(27,305)
Other (expense), net	(188)	(110)
Total other expense	(34,280)	(25,283)
Net loss and comprehensive loss	$ (201,592)	$ (197,723)
Net loss per share, basic	$ (3.93)	$ (5.05)
Net loss per share, diluted	$ (3.93)	$ (5.05)
Weighted-average shares of common stock outstanding, basic	51,289,092	39,118,215
Weighted-average shares of common stock outstanding, diluted	51,289,092	39,118,215