Condensed Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Condensed Statements of Operations and Comprehensive Loss [Abstract]
Revenue	$ 40,131	$ 28,021
Cost of goods sold	12,526	8,577
Gross profit	27,605	19,444
Operating expenses:
Research and development	10,433	8,123
Selling, general and administrative	34,082	27,275
Total operating expenses	44,515	35,398
Loss from operations	(16,910)	(15,954)
Interest income	2,287	12
Interest expense	(1,693)	(621)
Other income (expense), net	(144)	(116)
Net loss	(16,460)	(16,679)
Other comprehensive loss:
Change in unrealized gain (loss) on investments, net	249
Net change in other comprehensive loss	249
Net loss and comprehensive loss	$ (16,211)	$ (16,679)
Net loss per share, basic	$ (0.43)	$ (0.48)
Net loss per share, diluted	$ (0.43)	$ (0.48)
Weighted average common shares used to compute net loss per share, basic	38,532,202	35,023,297
Weighted average common shares used to compute net loss per share, diluted	38,532,202	35,023,297