Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Sales	$ 33,637	$ 34,887	$ 71,531	$ 64,399
Cost of sales	8,447	10,637	18,013	19,464
Gross profit	25,190	24,250	53,518	44,935
Operating expenses:
Selling, general and administrative	28,976	24,292	57,611	47,616
Research and development	10,217	8,291	20,584	16,322
Total operating expenses	39,193	32,583	78,195	63,938
Loss from operations	(14,003)	(8,333)	(24,677)	(19,003)
Other income (expense), net:
Interest expense	(5)	(6)	(11)	(11)
Interest and other income	2,254	2,276	4,762	3,860
Loss before income taxes	(11,754)	(6,063)	(19,926)	(15,154)
Income tax expense	32	16	50	25
Net loss	(11,786)	(6,079)	(19,976)	(15,179)
Other comprehensive loss
Unrealized loss on short-term investments	(146)	(64)	(303)	(109)
Foreign currency translation gain (loss)	14	(1)	20	(4)
Total other comprehensive loss	(132)	(65)	(283)	(113)
Comprehensive loss	$ (11,918)	$ (6,144)	$ (20,259)	$ (15,292)
Net loss per share:
Basic net loss per share	$ (0.29)	$ (0.16)	$ (0.49)	$ (0.4)
Diluted net loss per share	$ (0.29)	$ (0.16)	$ (0.49)	$ (0.4)
Weighted-average shares used in computing net loss per share:
Weighted-average shares used in computing net loss per share, basic	40,743,786	38,455,955	40,627,363	37,649,521
Weighted-average shares used in computing net loss per share, diluted	40,743,786	38,455,955	40,627,363	37,649,521