Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]
Licensing revenue	$ 22,557	$ 30,927	$ 67,671	$ 92,781
Total revenues	22,557	30,927	67,671	92,781
Operating Expenses:
Research and development	2,756,005	2,139,465	9,994,877	5,731,417
Selling, general and administrative	2,192,412	1,508,069	6,590,206	4,702,325
Total operating expenses	4,948,417	3,647,534	16,585,083	10,433,742
Loss from operations	(4,925,860)	(3,616,607)	(16,517,412)	(10,340,961)
Other Income (Expense):
Interest income	877	635	2,580	5,150
Interest expense	(242,062)	(89,123)	(3,657,921)	(89,407)
Debt financing costs		(160,000)		(160,000)
Loss on disposals of assets				(21,272)
Gain (loss) on revaluation of derivative warrant liability	(70,000)	(400,000)	4,605,986	201,281
Other income (expense), net	(311,185)	(648,488)	950,645	(64,248)
Net loss	$ (5,237,045)	$ (4,265,095)	$ (15,566,767)	$ (10,405,209)
Net loss per common share, basic and diluted	$ (0.49)	$ (1.07)	$ (2.06)	$ (2.65)
Basic and diluted weighted average common shares outstanding	10,688,781	3,985,888	7,571,733	3,925,637