Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenue:
Revenue	$ 8,577	$ 7,087
Cost of revenue:
Cost of revenue	13,155	10,872
Gross loss	(4,578)	(3,785)
Operating Expenses:
Research and development	37,023	28,942
Sales and marketing	16,921	14,756
General and administrative	19,155	20,172
Amortization of intangible assets	453	7,708
Change in fair value of contingent consideration	964	(1,115)
Impairment of property and equipment	374	1,431
Total operating expenses	74,890	71,894
Operating loss	(79,468)	(75,679)
Other Income (Expense), net
Change in fair value of warrant liabilities	1,232	0
Interest income	1,553	1,141
Interest expense	0	(410)
Other expense, net	(1,436)	(295)
Total other income (expense), net	1,349	436
Loss before income taxes	(78,119)	(75,243)
Income tax expense	(314)	(318)
Net loss	$ (78,433)	$ (75,561)
Net loss per common share attributable to common stockholders - basic and diluted (in dollars per share)	$ (0.31)	$ (0.32)
Weighted average number of shares used in computing net loss per common share - basic and diluted (in shares)	249,685	236,492
Comprehensive loss:
Net loss	$ (78,433)	$ (75,561)
Foreign currency translation gain (loss)	1,280	(1,867)
Unrealized gain (loss) on available-for-sale investments	496	(257)
Comprehensive loss	(76,657)	(77,685)
Product [Member]
Revenue:
Revenue	5,519	4,327
Cost of revenue:
Cost of revenue	6,866	5,303
Service [Member]
Revenue:
Revenue	1,052	1,373
Cost of revenue:
Cost of revenue	2,293	2,174
Lease [Member]
Revenue:
Revenue	2,006	1,387
Cost of revenue:
Cost of revenue	$ 3,996	$ 3,395