Summary of Significant Accounting Policies - Fair Value of Financial Instruments (Details) (USD $)	0 Months Ended	3 Months Ended				12 Months Ended						1 Months Ended	12 Months Ended
	Jul. 02, 2010	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Jan. 20, 2011	Nov. 30, 2010	Sep. 30, 2010	Oct. 31, 2009 October 2009 [Member]	Dec. 31, 2012 Warrant [Member]	Dec. 31, 2011 Warrant [Member]	Dec. 31, 2010 Warrant [Member]
Fair Value of Financial Instruments [Line Items]
Common stock, price-per-share	$ 2.00
Term to issue stock for warranty liability after announcement of study	45 days
Business acquisition, contingent consideration, at fair value	$ 5,509,893							$ 13,471,832
warrants and rights outstanding									16,193,037
Change in value of redeemable warrants						0	2,721,205	7,961,939
Common stock, shares issued		87,543,781				87,543,781	87,367,313				7,407,407	10,900,000
Warrants to purchase common stock, in shares												5,450,000
Derivative liability, fair value, gross liability		1,173,747				1,173,747	8,168,846	9,286,906
Derivative gain (loss) fair value of stock warrants		(1,595,530)	1,065,498	(205,700)	(6,259,367)	(6,995,099)	(556,662)	5,229,089
Mandatorily redeemable preferred stock, fair value disclosure		$ 550,000				$ 550,000	$ 600,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Stock Price													$ 0.64	$ 2.50	$ 2.27
Exercise Price		0.01				0.01				1.15			1.52	1.52	1.52
Risk free interest rate													0.25%	0.36%	2.01%
Expected term													2 years 3 months	3 years 3 months	4 years 3 months
Dividend yield													0.00%	0.00%	0.00%
Expected volatility													103.10%	83.24%	95.89%