Consolidated Statements of Operations and Comprehensive (Loss) Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Revenue	$ 2,181	$ 4,767
Cost of revenue	2,467	2,555
Gross (loss) profit	(286)	2,212
Operating Expenses (Income)
Research and development	5,655	5,265
Sales and marketing	7,674	5,970
General and administrative	4,560	2,676
Amortization of intangible assets	2,611	2,827
Change in fair value of contingent consideration	998	627
Acquisition related costs	45
Loss (gain) from sale of SurgiBot assets, net	97	(11,996)
Total Operating Expenses (Income)	21,640	5,369
Operating Loss	(21,926)	(3,157)
Other (Expense) Income
Change in fair value of warrant liabilities	(106)	1,829
Interest income	318	270
Interest expense	(1,116)	(656)
Other expense	(305)	(58)
Total Other (Expense) Income, net	(1,209)	1,385
Loss before income taxes	(23,135)	(1,772)
Income tax benefit	610	890
Net loss	(22,525)	(882)
Comprehensive (loss) income
Foreign currency translation (loss) gain	(1,949)	2,308
Comprehensive (loss) income	$ (24,474)	$ 1,426
Net loss per share - basic and diluted	$ (0.10)	$ 0.00
Weighted average common shares outstanding - basic and diluted	216,796	199,900