CONDENSED STATEMENTS OF OPERATIONS (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenue:
License revenue	$ 0	$ 0	$ 0	$ 150,000
Expenses:
Research and development	3,157,656	3,220,098	10,245,637	9,927,458
General and administrative	1,729,893	1,739,148	5,736,464	5,913,209
Total Expenses	4,887,549	4,959,246	15,982,101	15,840,667
Loss before other income	(4,887,549)	(4,959,246)	(15,982,101)	(15,690,667)
Other income:
Interest income	25,034	56,452	88,039	162,151
Other income, net	10,370	28,468	60,921	81,118
Gain (loss) on warrant derivative liability	6,436,342	4,316,560	(5,980,016)	5,494,322
Income (loss) before provision for income taxes	1,584,197	(557,766)	(21,813,157)	(9,953,076)
Provision for income taxes	0	0	0	0
Net income (loss)	1,584,197	(557,766)	(21,813,157)	(9,953,076)
Other comprehensive income (net of tax)
Unrealized gain (loss) on available-for-sale securities	0	(263,340)	0	115,920
Comprehensive income (loss)	$ 1,584,197	$ (821,106)	$ (21,813,157)	$ (9,837,156)
Basic net income (loss) per share (in dollars per share)	$ 0.07	$ (0.03)	$ (1.03)	$ (0.59)
Basic weighted average shares outstanding (in shares)	21,208,660	19,256,041	21,208,960	16,834,600
Diluted net income (loss) per share (in dollars per share)	$ 0.07	$ (0.03)	$ (1.03)	$ (0.59)
Diluted weighted average shares outstanding (in shares)	21,724,986	19,256,041	21,208,960	16,834,600