Condensed Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues:
Product sales, net	$ 17,807	$ 20,274	$ 51,580	$ 49,363
Development and license fees	1,362	1,035	6,622	5,648
Royalty revenue	5,560	684	13,318	684
Total revenues, net	24,729	21,993	71,520	55,695
Costs and expenses:
Cost of product sales	784	1,393	4,303	3,153
Cost of royalty revenue	2,780	342	6,659	342
Research and development expenses	15,624	8,268	40,376	23,593
Selling, general and administrative expenses	14,033	10,132	39,227	30,186
Total costs and expenses	33,221	20,135	90,565	57,274
Income (loss) from operations	(8,492)	1,858	(19,045)	(1,579)
Other income (expense):
Interest and other income	217	81	508	192
Interest and other expenses	(3,426)	(2,755)	(8,846)	(8,201)
Total other expense, net	(3,209)	(2,674)	(8,338)	(8,009)
Net loss	(11,701)	(816)	(27,383)	(9,588)
Other comprehensive income:
Unrealized gain on investments	58	33	54	123
Comprehensive loss	$ (11,643)	$ (783)	$ (27,329)	$ (9,465)
Basic and diluted net loss per share:
Basic and diluted net loss per share	$ (0.08)	$ (0.01)	$ (0.19)	$ (0.07)
Shares used in computing basic and diluted net loss per share	146,793,249	136,282,842	142,814,337	132,301,051