CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues:
Product sales	$ 51,168	$ 28,796	$ 19
Total revenues	51,168	28,796	19
Costs and expenses:
Cost of product sales	26,470	17,293	4
Gross profit	24,698	11,503	15
Research and development	18,890	21,263	15,104
Selling, general and administrative	22,479	13,774	5,875
Total operating expenses	41,369	35,037	20,979
Loss from operations	(16,671)	(23,534)	(20,964)
Other income (expense):
(Increase) decrease in fair value of warrants	324	(27)	5,337
Bargain purchase gain	0	3,473	0
Foreign currency translation gain (loss)	(67)	152	0
Interest income	36	24	16
Other income (expense)	47	(2)	0
Interest expense	(9)	(6)	(11)
Total other income (expense)	331	3,614	5,342
Net loss	$ (16,340)	$ (19,920)	$ (15,622)
Net loss per share attributable to common shareholders (basic and diluted) (in dollars per share)	$ (0.97)	$ (2.23)	$ (6.95)
Weighted average number of common shares outstanding (Basic and Diluted)	23,760	11,642	3,016