CONDENSED CONSOLIDATED 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
Income Statement [Abstract]
Revenue	$ 34,014	$ 26,432	$ 100,027	$ 74,456
Cost of goods sold	7,041	4,168	19,283	10,616
Gross profit	26,973	22,264	80,744	63,840
Operating expenses:
Sales and marketing	26,512	25,669	81,317	80,117
Research and development	3,919	3,089	10,866	10,147
General and administrative	7,711	7,072	22,986	21,891
Total operating expenses	38,142	35,830	115,169	112,155
Loss from operations	(11,169)	(13,566)	(34,425)	(48,315)
Interest and other income (expense), net:
Interest income	2,174	346	4,689	555
Interest expense	(884)	(755)	(2,573)	(1,938)
Other expense	(143)	(183)	(44)	(383)
Net loss	(10,022)	(14,158)	(32,353)	(50,081)
Other comprehensive income (loss):
Changes in foreign currency translation	53	25	34	11
Unrealized gain (loss) on marketable securities	5	100	90	(206)
Comprehensive loss	$ (9,964)	$ (14,033)	$ (32,229)	$ (50,276)
Net loss per share, basic (in usd per share)	$ (0.25)	$ (0.41)	$ (0.86)	$ (1.47)
Net loss per share, diluted (in usd per share)	$ (0.25)	$ (0.41)	$ (0.86)	$ (1.47)
Weighted-average number of common shares used to compute basic net loss per share (in shares)	40,265,520	34,356,850	37,702,207	34,069,357
Weighted-average number of common shares used to compute diluted net loss per share (in shares)	40,265,520	34,356,850	37,702,207	34,069,357