Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue
Product	$ 62,791	$ 48,186	$ 34,597
Royalty	4,096	0	0
Total revenue	66,887	48,186	34,597
Cost of revenue	42,415	30,638	27,283
Gross profit	24,472	17,548	7,314
Operating expenses
Sales and marketing	40,245	31,103	26,149
Research and development	16,997	15,107	13,779
General and administrative	23,191	16,763	14,693
Total operating expenses	80,433	62,973	54,621
Loss from operations	(55,961)	(45,425)	(47,307)
Other income and expenses
Interest income	138	104	89
Interest expense	(1,385)	(360)	(642)
Loss on extinguishment of debt	(205)	0	0
Other income (expense)	208	0	0
Total other expenses	(1,244)	(256)	(553)
Loss before income taxes	(57,205)	(45,681)	(47,860)
Income tax provision	41	41	29
Net loss	$ (57,246)	$ (45,722)	$ (47,889)
Net loss per share - basic and diluted	$ (2.60)	$ (10.78)	$ (11.98)
Weighted average common shares outstanding - basic and diluted	21,993,066	4,239,564	3,996,867