Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue	$ 187,118	$ 141,838	$ 94,419
Cost of goods sold	35,181	25,532	16,888
Gross profit	151,937	116,306	77,531
Operating expenses
Sales and marketing	140,894	104,567	65,405
Research and development	15,440	13,584	10,204
General and administrative	47,031	32,999	18,432
Total operating expenses	203,365	151,150	94,041
Loss from operations	(51,428)	(34,844)	(16,510)
Interest income	6,726	1,313	17
Interest expense	(5,167)	(4,398)	(4,060)
Debt extinguishment loss	0	(4,483)	0
Other income, net	342	(403)	1
Other non-operating income (expense), net	1,901	(7,971)	(4,042)
Net loss	(49,527)	(42,815)	(20,552)
Convertible preferred stock cumulative and undeclared dividends	0	0	(196)
Net loss attributable to common stockholders	(49,527)	(42,815)	(20,748)
Other comprehensive income (loss):
Unrealized gain (loss) on marketable securities	190	(27)	0
Comprehensive loss	$ (49,337)	$ (42,842)	$ (20,748)
Net loss per share attributable to common stockholders, basic	$ (0.81)	$ (0.77)	$ (0.43)
Net loss per share attributable to common stockholders, diluted	$ (0.81)	$ (0.77)	$ (0.43)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic	60,852,153	55,276,834	48,415,679
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted	60,852,153	55,276,834	48,415,679