Condensed Statements of Operations and Comprehensive Income (Loss) (USD $)	3 Months Ended		6 Months Ended		80 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012
Revenues	$ 154,551	$ 1,026,984	$ 596,117	$ 2,210,639	$ 10,994,266
Costs and Expenses
Research and development	4,830,139	6,701,046	9,220,463	15,295,772	88,906,146
Selling, general and administrative	1,186,213	1,641,710	2,680,324	4,095,578	38,502,354
Impairment loss	0	78,000,000	0	78,000,000	79,769,480
Total Costs and Expenses	6,016,352	86,342,756	11,900,787	97,391,350	207,177,980
Loss from Operations	(5,861,801)	(85,315,772)	(11,304,670)	(95,180,711)	(196,183,714)
Other Income/(Expense), net	(44,066)	146,837	(111,702)	357,189	1,760,406
Net Loss	(5,905,867)	(85,168,935)	(11,416,372)	(94,823,522)	(194,423,308)
Other Comprehensive Income (Loss)
Unrealized gain (loss) on investments	0	(2,222)	0	1,623	0
Comprehensive Loss	$ (5,905,867)	$ (85,171,157)	$ (11,416,372)	$ (94,821,899)	$ (194,423,308)
Net Loss Per Share (Basic and diluted) (in dollars per share)	$ (0.14)	$ (2.63)	$ (0.28)	$ (2.93)
Weighted Average Common Shares Outstanding (Basic and diluted) (in shares)	41,172,019	32,427,846	40,861,375	32,361,011