Condensed Statement of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenue	$ 29,967	$ 20,654	$ 59,014	$ 39,361
Cost of goods sold	5,651	3,944	11,157	7,271
Gross profit	24,316	16,710	47,857	32,090
Operating expenses
Sales and marketing	26,250	14,010	48,173	26,158
Research and development	2,984	2,422	6,036	4,290
General and administrative	7,015	4,329	13,677	7,095
Total operating expenses	36,249	20,761	67,886	37,543
Loss from operations	(11,933)	(4,051)	(20,029)	(5,453)
Interest and other income, net	128	6	139	7
Interest expense	(946)	(1,038)	(1,897)	(2,069)
Debt extinguishment loss	(4,483)	0	(4,483)	0
Other expense, net	(5,301)	(1,032)	(6,241)	(2,062)
Net loss and comprehensive loss	(17,234)	(5,083)	(26,270)	(7,515)
Convertible preferred stock cumulative and undeclared dividends	0	(39)	0	(196)
Net loss attributable to common stockholders	$ (17,234)	$ (5,122)	$ (26,270)	$ (7,711)
Net loss per share attributable to common stockholders, basic	$ (0.31)	$ (0.10)	$ (0.48)	$ (0.18)
Net loss per share attributable to common stockholders, diluted	$ (0.31)	$ (0.10)	$ (0.48)	$ (0.18)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic	55,308,273	49,187,285	55,071,368	43,556,107
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted	55,308,273	49,187,285	55,071,368	43,556,107