Condensed Consolidated Statements of Operations and Comprehensive Loss (Statement) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Total revenue	$ 18,876	$ 15,525
Total cost of revenue	18,782	15,203
Gross profit	94	322
Operating expenses:
Research and development	7,870	6,510
Selling and marketing	6,884	2,848
General and administrative	12,814	15,639
Total operating expenses	27,568	24,997
Loss from operations	(27,474)	(24,675)
Interest income	5	2
Interest expense	(1,064)	(1,058)
Other (expense) income, net	2,759	(1,012)
Loss before provision for income taxes	(25,774)	(26,743)
Provision for income taxes	0	0
Net loss and comprehensive loss	$ (25,774)	$ (26,743)
Net loss per share, basic (in USD per share)	$ (0.14)	$ (0.17)
Net loss per share, diluted (in USD per share)	$ (0.14)	$ (0.17)
Weighted-average common shares used to compute net loss per share attributable to common stockholders, basic (in shares)	179,740,732	160,138,327
Weighted-average common shares used to compute net loss per share attributable to common stockholders, diluted (in shares)	179,740,732	160,138,327
Product
Total revenue	$ 13,426	$ 11,379
Total cost of revenue	13,766	10,685
Service
Total revenue	5,331	4,027
Total cost of revenue	5,016	4,518
Distribution rights
Total revenue	$ 119	$ 119