Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue	$ 5,515,000	$ 2,608,000	$ 9,800,000	$ 4,561,000
Costs and expenses:
Cost of revenue (excluding depreciation and amortization)	1,901,000	742,000	2,937,000	1,310,000
Research and development	19,869,000	9,653,000	36,102,000	16,990,000
Sales and marketing	3,575,000	2,132,000	6,242,000	4,002,000
General and administrative	10,930,000	7,558,000	21,511,000	16,752,000
Depreciation and amortization	2,329,000	1,451,000	4,120,000	2,717,000
Total operating costs and expenses	38,604,000	21,536,000	70,912,000	41,771,000
Loss from operations	(33,089,000)	(18,928,000)	(61,112,000)	(37,210,000)
Change in fair value of warrant liabilities	(15,537,000)	16,061,000	(19,147,000)	29,509,000
Interest income, net	4,877,000	1,259,000	9,108,000	1,867,000
Other income (expense), net	31,000	(46,000)	95,000	(47,000)
Loss before benefit for income taxes	(43,718,000)	(1,654,000)	(71,056,000)	(5,881,000)
Benefit for income taxes	0	0	0	0
Net loss	$ (43,718,000)	$ (1,654,000)	$ (71,056,000)	$ (5,881,000)
Net loss per share attributable to common stockholders—basic	$ (0.22)	$ (0.01)	$ (0.35)	$ (0.03)
Weighted average shares used in computing net loss per share attributable to common stockholders—basic	201,431,494	197,214,022	200,775,817	196,708,008
Net loss per share attributable to common stockholders—diluted	$ (0.22)	$ (0.01)	$ (0.35)	$ (0.03)
Weighted average shares used in computing net loss per share attributable to common stockholders—diluted	201,431,494	197,214,022	200,775,817	196,708,008