CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Product revenue	$ 8,558	$ 6,611
Revenue from Contract with Customer, Product and Service [Extensible List]	Product [Member]	Product [Member]
Cost of product revenue	$ 5,967	$ 4,868
Cost, Product and Service [Extensible List]	Product [Member]	Product [Member]
Gross profit	$ 2,591	$ 1,743
Operating expenses:
Research and development	15,906	4,712
Sales and marketing	7,090	3,426
General and administrative	13,783	9,907
Total operating expenses	36,779	18,045
Loss from operations	(34,188)	(16,302)
Other (expense) income:
Interest income	154	1
Interest expense	0	(504)
Other income (expense), net	1,684	(4,152)
Total other expense, net	1,838	(4,655)
Loss before income taxes	(32,350)	(20,957)
Provision for income tax expense	47	0
Net loss	(32,397)	(20,957)
Other comprehensive loss
Foreign currency translation adjustments	(12)	0
Total comprehensive loss	$ (32,409)	$ (20,957)
Net loss per common share, basic (in dollars per share)	$ (0.19)	$ (0.38)
Net loss per common share, diluted (in dollars per share)	$ (0.19)	$ (0.38)
Weighted-average shares used to compute basic net loss per share (in shares)	170,906,196	55,688,281
Weighted-average shares used to compute diluted net loss per share (in shares)	170,906,196	55,688,281