Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenues:
Product sales, net	$ 6,280	$ 4,626	$ 10,972	$ 8,160
Co-promotion revenue	382		382
Total Revenues	6,662	4,626	11,354	8,160
Cost and expenses:
Cost of goods sold	2,038	6,727	5,588	8,447
Research and development	6,026	6,705	12,160	13,951
Selling, general and administrative	17,807	27,327	32,963	51,579
Operating Expenses, Total	25,871	40,759	50,711	73,977
Operating loss	(19,209)	(36,133)	(39,357)	(65,817)
Investment income, net	20	41	53	84
Interest expense on debt	(7,237)	(5,600)	(14,316)	(10,157)
Gain on extinguishment of debt		21,800		21,800
Other income, net	994	3,513	1,500	3,513
Loss before income taxes	(25,432)	(16,379)	(52,120)	(50,577)
Income tax benefit			2,242
Net loss	$ (25,432)	$ (16,379)	$ (49,878)	$ (50,577)
Loss per common share:
Basic and diluted	$ (0.35)	$ (0.23)	$ (0.69)	$ (0.72)
Weighted-average number of common shares:
Basic and diluted	72,141	70,721	71,905	70,596