Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenues:
Product sales, net	$ 47,949	$ 13,660	$ 130,759	$ 30,050
License and contract revenue	3,075	3,075	9,225	10,117
Total revenues	51,024	16,735	139,984	40,167
Operating costs and expenses:
Cost of product sales (excludes amortization of purchased intangible assets)	8,845	3,789	23,555	10,626
Selling, general and administrative	15,811	11,411	47,261	36,075
Research and development	7,388	7,485	20,904	50,314
Amortization of purchased intangibles	930	930	2,790	2,790
Total operating costs and expenses	32,974	23,615	94,510	99,805
Income (loss) from operations	18,050	(6,880)	45,474	(59,638)
Change in fair value of common stock warrant liability	2,999	1,629	(3,488)	6,030
Other income (loss), net	(144)	578	550	245
Income (loss) before provision for income taxes	20,905	(4,673)	42,536	(53,363)
Provision for income taxes	(650)	79	(2,300)	79
Net income (loss)	$ 20,255	$ (4,594)	$ 40,236	$ (53,284)
Net income (loss) per share:
Basic	$ 0.38	$ (0.09)	$ 0.77	$ (1.08)
Diluted	$ 0.34	$ (0.09)	$ 0.70	$ (1.08)
Weighted average shares outstanding:
Basic	53,810,047	49,739,072	52,477,789	49,146,245
Diluted	59,469,863	49,739,072	57,326,069	49,146,245