Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues	$ 91	$ 11	$ 391	$ 761
Costs and Expenses
Research and development	8,306	8,425	18,367	23,126
Selling, general and administrative	4,075	1,501	11,450	5,143
Total costs and expenses	12,381	9,926	29,817	28,269
Operating loss from continuing operations	(12,290)	(9,915)	(29,426)	(27,508)
Other income (expense):
Interest income	39	3	91	29
Interest expense	(880)	(499)	(2,771)	(1,357)
Other income (expense)	(351)	260	(665)	30
Total other income (expense)	(1,192)	(236)	(3,345)	(1,298)
Loss from continuing operations	(13,482)	(10,151)	(32,771)	(28,806)
Discontinued operations:
Income from discontinued operations		417		646
Net loss	(13,482)	(9,734)	(32,771)	(28,160)
Cumulative dividends on Series A convertible preferred stock		(858)	(1,143)	(2,573)
Net loss attributable to common stockholders	$ (13,482)	$ (10,592)	$ (33,914)	$ (30,733)
Basic and Diluted
Continuing operations (in dollars per share)	$ (0.55)	$ (6.90)	$ (2.36)	$ (19.68)
Discontinued operations (in dollars per share)		$ 0.26		$ 0.40
Net loss (in dollars per share)	$ (0.55)	$ (6.64)	$ (2.36)	$ (19.28)
Weighted-average number of common shares:
Basic and Diluted (in shares)	24,464,281	1,595,821	14,356,546	1,594,288