Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue:
Revenue	$ 2,083	$ 600
Cost of revenue:
Cost of revenue	3,112	1,738
Gross loss	(1,029)	(1,138)
Operating Expenses:
Research and development	4,215	3,934
Sales and marketing	3,053	4,253
General and administrative	3,992	3,349
Amortization of intangible assets	2,867	2,564
Change in fair value of contingent consideration	257	1,056
Restructuring and other charges	0	858
Total Operating Expenses	14,384	16,014
Operating Loss	(15,413)	(17,152)
Other Expense, net
Change in fair value of warrant liabilities	(1,981)	(155)
Interest income	52	27
Interest expense	(7)	0
Other expense, net	(29)	(15)
Total Other Expense, net	(1,965)	(143)
Loss before income taxes	(17,378)	(17,295)
Income tax benefit	38	697
Net loss	(17,340)	(16,598)
Deemed dividend related to beneficial conversion feature of preferred stock	0	(412)
Net loss attributable to common stockholders	(17,340)	(17,010)
Comprehensive loss:
Net loss	(17,340)	(16,598)
Foreign currency translation loss	(1,938)	(872)
Comprehensive loss	$ (19,278)	$ (17,470)
Net loss per common share attributable to common stockholders - basic and diluted (in dollars per share)	$ (0.08)	$ (0.59)
Weighted average number of shares used in computing net loss per common share - basic and diluted (in shares)	204,992	28,906
Product [Member]
Revenue:
Revenue	$ 1,704	$ 242
Cost of revenue:
Cost of revenue	2,380	913
Service [Member]
Revenue:
Revenue	379	358
Cost of revenue:
Cost of revenue	$ 732	$ 825