CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Operating expenses:
Research and development	$ 15,601	$ 13,821	$ 37,664	$ 27,934
Selling, general and administrative	10,204	6,749	17,445	14,413
Gain (Loss) on Disposition of Assets	0	0	0	(509)
Total operating expenses	25,805	20,570	55,109	41,838
Loss from operations	(25,805)	(20,570)	(55,109)	(41,838)
Other expense, net:
Interest income	914	4	1,749	7
Interest expense	(1,148)	(918)	(2,257)	(1,831)
Other income (expense), net	202	(59)	325	1
Total other expense, net	(29,892)	(638)	(24,604)	(1,312)
Loss before provision for income taxes	(55,697)	(21,208)	(79,713)	(43,150)
Provision for income taxes	15	4	19	27
Net loss and comprehensive loss	(55,712)	(21,212)	(79,732)	(43,177)
Deemed dividend on Class B Warrant price reset	0	0	0	(2,259)
Net loss attributable to common stockholders	$ (55,712)	$ (21,212)	$ (79,732)	$ (45,436)
Net loss per share attributable to common stockholders—basic	$ (0.33)	$ (0.60)	$ (0.51)	$ (1.31)
Net loss per share attributable to common stockholders—diluted	$ (0.33)	$ (0.60)	$ (0.51)	$ (1.31)
Weighted average shares of common stock outstanding—diluted	168,738,000	35,437,000	157,416,000	34,592,000
Weighted average shares of common stock outstanding—basic	168,738,000	35,437,000	157,416,000	34,592,000
Embedded derivative liability
Other expense, net:
Derivative, gain (loss) on derivative, net	$ 0	$ 335	$ 0	$ 511
Warrant Liability
Other expense, net:
Derivative, gain (loss) on derivative, net	$ (29,860)	$ 0	$ (24,421)	$ 0