CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Product sales, net	$ 22,484	$ 14,260	$ 59,522	$ 40,574
Gross profit	14,346	7,074	35,991	18,609
Research and development	3,113	2,919	10,581	9,357
Selling, general and administrative	12,569	8,186	35,314	25,427
Total operating expenses	15,682	11,105	45,895	34,784
Loss from operations	(1,336)	(4,031)	(9,904)	(16,175)
Other income (expense):
Decrease (increase) in fair value of warrants	420	(1,060)	(2,524)	(512)
Foreign currency translation loss	0	(6)	(49)	(20)
Interest income	307	2	390	6
Interest expense	(460)	(317)	(1,340)	(878)
Other income	0	5	48	6
Total other income (expense)	267	(1,376)	(3,475)	(1,398)
Net loss	$ (1,069)	$ (5,407)	$ (13,379)	$ (17,573)
Net loss per share attributable to common shareholders (Basic and Diluted) (in dollars per share)	$ (0.02)	$ (0.16)	$ (0.34)	$ (0.54)
Weighted average number of common shares outstanding (Basic and Diluted) (in shares)	42,925	33,667	39,163	32,783
Product
Product sales, net	$ 22,484	$ 14,260	$ 59,522	$ 40,574
Cost of product sales	$ 8,138	$ 7,186	$ 23,531	$ 21,965