Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Condensed Consolidated Statements of Operations and Comprehensive Loss [Abstract]
Revenue	$ 6,186	$ 3,395	$ 15,293	$ 9,378
Cost of goods sold	1,340	876	3,490	2,656
Gross profit	4,846	2,519	11,803	6,722
Operating expenses:
Research and development	2,293	1,699	6,906	5,704
Selling, general and administrative	12,679	8,111	35,945	18,198
Total operating expenses	14,972	9,810	42,851	23,902
Loss from operations	(10,126)	(7,291)	(31,048)	(17,180)
Interest expense		(614)		(1,823)
Other income (expense), net	328	1,795	237	(13,439)
Loss before income taxes	(9,798)	(6,110)	(30,811)	(32,442)
Provision for income taxes	(32)	(23)	(81)	(66)
Net loss	(9,830)	(6,133)	(30,892)	(32,508)
Cumulative translation adjustment	(8)	(3)	(21)	(8)
Comprehensive loss	$ (9,838)	$ (6,136)	$ (30,913)	$ (32,516)
Net loss per share, basic	$ (0.48)	$ (0.30)	$ (1.51)	$ (4.66)
Net loss per share, diluted	$ (0.48)	$ (0.30)	$ (1.51)	$ (4.66)
Weighted-average common shares used to compute net loss per share, basic	20,576,838	20,126,672	20,512,254	6,975,386
Weighted-average common shares used to compute net loss per share, diluted	20,576,838	20,126,672	20,512,254	6,975,386