Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Total revenue	$ 5,867	$ 2,307
Operating expenses
Selling, general and administrative	11,207	9,148
Research and development	10,956	6,794
Cost of goods sold	529	179
Total operating expenses	22,692	16,121
Loss from operations	(16,825)	(13,814)
Other income (expense)
Interest income	1,660	15
Interest expense	(58)	(58)
Total other income (expense), net	1,602	(43)
Net loss	(15,223)	(13,857)
Other comprehensive loss:
Change in unrealized loss on short-term investments	83	0
Comprehensive loss	$ (15,140)	$ (13,857)
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.57)	$ (0.66)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.57)	$ (0.66)
Weighted average number of common shares outstanding used in computing net loss per share attributable to common stockholders, basic (in shares)	26,862,646	20,914,842
Weighted-average common shares outstanding, diluted (in shares)	26,862,646	20,914,842
Product sales, net
Total revenue	$ 5,867	$ 2,307