CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue	$ 2,012	$ 743	$ 4,119	$ 1,891
Cost of revenue	2,860	2,661	6,359	5,190
Gross loss	(848)	(1,918)	(2,240)	(3,299)
Research and development expenses	26,196	27,065	51,208	52,519
General and administrative expenses	8,663	7,713	17,074	15,546
Selling and marketing expenses	1,706	1,485	4,235	4,083
Litigation settlement, net	11,500	0	11,500	0
Total operating expenses	48,065	36,263	84,017	72,148
Operating loss	(48,913)	(38,181)	(86,257)	(75,447)
Interest income	2,099	2,225	4,557	4,289
Other income, net	3,544	1	3,104	29
Loss before income taxes	(43,270)	(35,955)	(78,596)	(71,129)
Income tax provision	123	0	123	0
Net loss	(43,393)	(35,955)	(78,719)	(71,129)
Unrealized gain (loss) on available-for-sale securities	12	477	(149)	1,689
Total comprehensive loss	$ (43,381)	$ (35,478)	$ (78,868)	$ (69,440)
Net loss per share, Basic	$ (0.82)	$ (0.82)	$ (1.49)	$ (1.62)
Net loss per share, Diluted	$ (0.82)	$ (0.82)	$ (1.49)	$ (1.62)
Weighted-average shares used in computing net loss per share - Basic	52,995,093	44,104,251	52,868,909	44,015,402
Weighted-average shares used in computing net loss per share - diluted	52,995,093	44,104,251	52,868,909	44,015,402