Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Revenue:
Revenue	$ 3,175	$ 8,531
Cost of revenue:
Cost of revenue	5,166	20,731
Gross loss	(1,991)	(12,200)
Operating Expenses:
Research and development	16,621	22,468
Sales and marketing	13,064	28,014
General and administrative	14,137	18,758
Amortization of intangible assets	10,801	10,301
Change in fair value of contingent consideration	2,924	(9,553)
Restructuring and other charges	851	1,374
Goodwill impairment	0	78,969
Intangible assets impairment	0	7,912
Total Operating Expenses	58,398	142,375
Operating Loss	(60,389)	(154,575)
Other Income (Expense):
Change in fair value of warrant liabilities	(336)	2,248
Interest income	35	582
Interest expense	(19)	(4,613)
Other expense, net	(119)	(967)
Total Other Expense, net	(439)	(2,750)
Total loss from operations before taxes	(60,828)	(157,325)
Income tax benefit	1,516	3,124
Net loss	(59,312)	(154,201)
Deemed dividend related to beneficial conversion feature of preferred stock	(412)	0
Deemed dividend related to conversion of preferred stock into common stock	(299)	0
Net loss attributable to common stockholders	(60,023)	(154,201)
Comprehensive loss:
Net loss	(59,312)	(154,201)
Foreign currency translation gain (loss)	4,338	(2,708)
Comprehensive loss	$ (54,974)	$ (156,909)
Net loss per common share attributable to common stockholders - basic and diluted (in dollars per share)	$ (0.85)	$ (8.69)
Weighted average number of shares used in computing net loss per common share - basic and diluted (in shares)	70,809	17,737
Product [Member]
Revenue:
Revenue	$ 1,612	$ 7,104
Cost of revenue:
Cost of revenue	2,254	16,439
Service [Member]
Revenue:
Revenue	1,563	1,427
Cost of revenue:
Cost of revenue	2,912	4,292
SurgiBot System [Member]
Operating Expenses:
Gain (loss) from sale of assets	0	97
Auto Lap [Member]
Operating Expenses:
Gain (loss) from sale of assets	$ 0	$ (15,965)