CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue:
Revenue	$ 1,472	$ 0
Revenue, related party	0	1,069
Total revenue	1,472	1,069
Cost of revenue	823	622
Gross profit	649	447
Operating expenses:
Research and development	2,400	2,512
Selling, general and administrative	5,940	1,379
Total operating expenses	8,340	3,891
Loss from operations	(7,691)	(3,444)
Interest expense, net	(54)	(147)
Gain from change in fair value of warrant liability	0	23
Other expense, net	0	(13)
Net loss	(7,745)	(3,581)
Other comprehensive loss	(18)	(2)
Net loss and comprehensive loss	$ (7,763)	$ (3,583)
Net loss per share, basic and diluted (in dollars per share)	$ (0.47)	$ (6.22)
Weighted-average common shares outstanding, basic and diluted (in shares)	16,562,030	575,855