Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue	$ 3,699	$ 3,041
Cost of revenue	2,352	1,619
Gross profit	1,347	1,422
Operating expenses:
Research and development	3,756	2,388
Selling, general and administrative	8,931	5,450
Total operating expenses	12,687	7,838
Loss from operations	(11,340)	(6,416)
Interest expense, net	(1,070)	(263)
Other expense, net	(10)	(16)
Net loss from consolidated companies	(12,420)	(6,695)
Loss from minority interest in limited liability company	(249)
Comprehensive and net loss	$ (12,669)	$ (6,695)
Net loss per share:
Basic and diluted (in dollars per share)	$ (0.49)	$ (0.57)
Weighted average shares used in computing net loss per common share:
Basic and diluted (in shares)	25,846,724	11,663,765