Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Revenues:
License revenue, net	$ 0	$ 2,125
Grant revenue	0	489
Total Revenues	0	2,614
Operating Costs and Expenses:
General and administrative	2,588	2,117
Research and development	3,340	1,580
Total Operating Costs and Expenses	5,928	3,697
Loss from Continuing Operations	(5,928)	(1,083)
Other Income (Expense):
Warrant expense	(1,492)	0
Change in fair value of warrant liability	(242)	0
Impairment loss on equipment	0	(121)
Interest income	14	0
Other income (expense)	22	9
Total Other Expense, net	(1,698)	(112)
Net Loss from Continuing Operations	(7,626)	(1,195)
Net Loss from Discontinued Operations	(523)	(516)
Net Loss	$ (8,149)	$ (1,711)
Net Loss Per Share - Basic and Dilutive:
Continuing Operations (in dollars per share)	$ (0.27)	$ (0.06)
Discontinued Operations (in dollars per share)	$ (0.02)	$ (0.02)
Net Loss Per Share (in dollars per share)	$ (0.29)	$ (0.08)
Weighted average number of common shares outstanding during the year - Basic and Dilutive (in shares)	27,710,428	22,393,568