Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues:
Product sales, net	$ 28,091	$ 11,037	$ 67,917	$ 16,492
Royalties	29,109	28,129	89,450	84,613
License fees	0	36	0	36
Total revenues	57,200	39,202	157,367	101,141
Cost of sales	3,180	1,077	7,794	1,615
Operating expenses:
Research and development	24,530	18,798	66,238	65,381
Selling, general and administrative	28,139	17,558	79,142	46,228
Total operating expenses	52,669	36,356	145,380	111,609
Operating income (loss)	1,351	1,769	4,193	(12,083)
Other income (expense)
Interest income, net	97	108	321	221
Interest expense	(3,364)	(2,959)	(11,047)	(9,388)
Other	(9)	(5)	298	(18)
Total other expense, net	(3,276)	(2,856)	(10,428)	(9,185)
Loss before income tax expense	(1,925)	(1,087)	(6,235)	(21,268)
Income tax expense	221	0	495	4
Net loss	$ (2,146)	$ (1,087)	$ (6,730)	$ (21,272)
Net loss per common and potential common share
Basic	$ (0.02)	$ (0.01)	$ (0.06)	$ (0.22)
Diluted	$ (0.02)	$ (0.01)	$ (0.06)	$ (0.22)
Weighted average common and potential common shares outstanding
Basic	107,312	102,227	105,924	96,034
Diluted	107,312	102,227	105,924	96,034