Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue:
Revenue	$ 994	$ 1,102	$ 2,060	$ 3,185
Cost of revenue:
Cost of revenue	2,347	2,347	4,170	5,459
Gross loss	(1,353)	(1,245)	(2,110)	(2,274)
Operating Expenses:
Research and development	7,253	4,089	13,681	8,304
Sales and marketing	3,602	3,562	7,321	6,615
General and administrative	4,992	3,848	10,525	7,840
Amortization of intangible assets	2,533	2,862	5,203	5,729
Change in fair value of contingent consideration	(598)	478	(752)	735
Property and equipment impairment	432	0	432	0
Total Operating Expenses	18,214	14,839	36,410	29,223
Operating Loss	(19,567)	(16,084)	(38,520)	(31,497)
Other Income (Expense), net
Gain on extinguishment of debt	0	2,847	0	2,847
Change in fair value of warrant liabilities	0	0	0	(1,981)
Interest income	260	79	515	131
Interest expense	(141)	(5)	(341)	(12)
Other expense, net	(86)	(7)	(232)	(36)
Total Other Income (Expense), net	33	2,914	(58)	949
Loss before income taxes	(19,534)	(13,170)	(38,578)	(30,548)
Income tax (expense) benefit	(85)	(2)	(169)	36
Net loss	(19,619)	(13,172)	(38,747)	(30,512)
Comprehensive loss:
Net loss	(19,619)	(13,172)	(38,747)	(30,512)
Foreign currency translation (loss) gain	(1,713)	472	(2,363)	(1,466)
Unrealized loss on available-for-sale investments	(144)	0	(696)	0
Comprehensive loss	$ (21,476)	$ (12,700)	$ (41,806)	$ (31,978)
Net loss per common share attributable to common stockholders - basic and diluted (in dollars per share)	$ (0.08)	$ (0.06)	$ (0.16)	$ (0.14)
Weighted average number of shares used in computing net loss per common share - basic and diluted (in shares)	236,505	233,250	236,201	219,199
Product [Member]
Revenue:
Revenue	$ 254	$ 363	$ 601	$ 1,726
Cost of revenue:
Cost of revenue	883	1,003	1,259	2,678
Service [Member]
Revenue:
Revenue	424	406	732	785
Cost of revenue:
Cost of revenue	646	636	1,141	1,002
Lease [Member]
Revenue:
Revenue	316	333	727	674
Cost of revenue:
Cost of revenue	$ 818	$ 708	$ 1,770	$ 1,779