Condensed Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Condensed Statements of Operations and Comprehensive Loss [Abstract]
Revenue	$ 44,435	$ 37,374	$ 129,864	$ 98,567
Cost of goods sold	12,050	9,308	37,580	26,897
Gross profit	32,385	28,066	92,284	71,670
Operating expenses:
Research and development	10,047	8,471	31,260	27,249
Selling, general and administrative	36,009	28,821	105,923	83,795
Total operating expenses	46,056	37,292	137,183	111,044
Loss from operations	(13,671)	(9,226)	(44,899)	(39,374)
Interest income	2,617	617	7,339	751
Interest expense	(1,732)	(1,714)	(5,137)	(3,366)
Loss on debt extinguishment				(245)
Other income (expense), net	(2)	4	(35)	(162)
Net loss	(12,788)	(10,319)	(42,732)	(42,396)
Other comprehensive loss:
Unrealized gain (loss) on investments, net	47	(189)	(118)	(191)
Other comprehensive loss	47	(189)	(118)	(191)
Net loss and comprehensive loss	$ (12,741)	$ (10,508)	$ (42,850)	$ (42,587)
Net loss per share, basic	$ (0.33)	$ (0.29)	$ (1.10)	$ (1.21)
Net loss per share, diluted	$ (0.33)	$ (0.29)	$ (1.10)	$ (1.21)
Weighted average common shares used to compute net loss per share, basic	38,865,011	35,303,958	38,722,012	35,157,840
Weighted average common shares used to compute net loss per share, diluted	38,865,011	35,303,958	38,722,012	35,157,840