Condensed Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue:
Revenue	$ 25,057	$ 25,216	$ 55,607	$ 48,132
Cost of revenue:
Cost of revenue	21,275	24,164	47,383	46,791
Gross profit	3,782	1,052	8,224	1,341
Operating expenses:
Research and development	13,521	8,032	24,352	15,602
Sales and marketing	23,198	13,204	43,575	26,353
General and administrative	10,784	9,722	20,493	18,968
Total operating expenses	47,503	30,958	88,420	60,923
Loss from operations	(43,721)	(29,906)	(80,196)	(59,582)
Interest income and other income, net	459	164	579	276
Interest expense	(481)	(431)	(903)	(853)
Loss before provision for income taxes	(43,743)	(30,173)	(80,520)	(60,159)
Provision for income taxes	96	35	211	74
Net loss	$ (43,839)	$ (30,208)	$ (80,731)	$ (60,233)
Net loss per share, basic and diluted	$ (0.92)	$ (0.66)	$ (1.69)	$ (1.36)
Net loss per share, basic and diluted	$ (0.92)	$ (0.66)	$ (1.69)	$ (1.36)
Shares used in computing net loss per share, basic and diluted	47,882	45,680	47,686	44,228
Shares used in computing net loss per share, basic and diluted	47,882	45,680	47,686	44,228
Product Revenue
Revenue:
Revenue	$ 19,621	$ 20,628	$ 45,285	$ 38,838
Cost of revenue:
Cost of revenue	17,718	22,077	40,828	42,654
Service and Other Revenue
Revenue:
Revenue	5,436	4,588	10,322	9,294
Cost of revenue:
Cost of revenue	$ 3,557	$ 2,087	$ 6,555	$ 4,137