Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Total revenue	$ 6,855	$ 5,313
Total cost of sales	16,654	7,639
Gross loss	(9,799)	(2,326)
Operating expenses:
Research and development	33,109	14,010
Sales and marketing	9,398	2,635
General and administrative	30,025	10,273
Total operating expenses	72,532	26,918
Loss from operations	(82,331)	(29,244)
Change in fair value of warrant liabilities	(3,857)	(46,649)
Interest expense and other	(3,280)	(200)
Interest income and other	1,539	170
Total other income (expense), net	(5,598)	(46,679)
Loss before provision for income taxes	(87,929)	(75,923)
Provision for income taxes	404	0
Net loss	$ (88,333)	$ (75,923)
Net loss per share:
Basic (in dollars per share)	$ (0.25)	$ (0.23)
Diluted (in dollars per share)	$ (0.25)	$ (0.23)
Shares used in computing net loss per share:
Basic (in shares)	348,683,836	332,987,523
Diluted (in shares)	348,683,836	332,987,523
Comprehensive Loss:
Net loss	$ (88,333)	$ (75,923)
Net unrealized losses on available-for-sale debt securities	(3,648)	(43)
Comprehensive loss	(91,981)	(75,966)
Products
Total revenue	1,541	2,933
Total cost of sales	11,818	5,309
Services
Total revenue	5,314	2,380
Total cost of sales	$ 4,836	$ 2,330