Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Revenue	$ 6,389	$ 1,584	$ 11,156	$ 3,530
Cost of revenue	3,732	972	6,287	2,306
Gross profit	2,657	612	4,869	1,224
Operating Expenses (Income)
Research and development	5,281	5,070	10,546	11,925
Sales and marketing	6,046	3,749	12,016	7,472
General and administrative	3,627	2,719	6,303	5,768
Amortization of intangible assets	2,743	1,687	5,570	3,323
Change in fair value of contingent consideration	812	(774)	1,439	453
Issuance costs for warrants		627		627
Gain from sale of SurgiBot assets, net	37		(11,959)
Total Operating Expenses (Income)	18,546	13,078	23,915	29,568
Operating Loss	(15,889)	(12,466)	(19,046)	(28,344)
Other Income (Expense)
Change in fair value of warrant liabilities	(17,507)	(2,326)	(15,678)	(2,326)
Interest expense, net	(1,736)	(622)	(2,122)	(956)
Other income (expense)	1	(40)	(57)	(100)
Total Other Income (Expense), net	(19,242)	(2,988)	(17,857)	(3,382)
Loss before income taxes	(35,131)	(15,454)	(36,903)	(31,726)
Income tax benefit	883	741	1,773	1,599
Net loss	(34,248)	(14,713)	(35,130)	(30,127)
Other comprehensive loss
Foreign currency translation (loss) gain	(4,398)	5,430	(2,090)	6,563
Comprehensive loss	$ (38,646)	$ (9,283)	$ (37,220)	$ (23,564)
Net loss per share - basic and diluted	$ (0.17)	$ (0.11)	$ (0.17)	$ (0.24)
Weighted average common shares outstanding - basic and diluted	204,504	132,386	202,214	127,052