Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenue from contracts with customers	$ 89,077	$ 49,005
Cost of sales	35,312	27,677
Gross profit	53,765	21,328
Operating expenses:
Selling, general and administrative	74,799	58,665
Research and development	29,051	25,981
Total operating expenses	103,850	84,646
Loss from operations	(50,085)	(63,318)
Other income (expense), net:
Interest expense	(3,308)	(4,946)
Interest and other income	6,574	1,517
Loss on extinguishment of term loan	(1,769)	0
Loss before income taxes	(48,588)	(66,747)
Income tax expense	20	9
Net loss	(48,608)	(66,756)
Other comprehensive income (loss)
Unrealized gain (loss) on short-term investments	83	(66)
Foreign currency translation income (loss)	7	(9)
Total other comprehensive income (loss)	90	75
Comprehensive loss	$ (48,518)	$ (66,831)
Net loss per share:
Attributable to common stock, basic	$ (1.41)	$ (2.41)
Attributable to common stock, diluted	$ (1.41)	$ (2.41)
Weighted-average shares outstanding used in computing net loss per share:
Attributable to common stock, basic	34,455,111	27,661,982
Attributable to common stock, diluted	34,455,111	27,661,982