Fair Value of Financial Instruments (Details) (USD $)	3 Months Ended		6 Months Ended					1 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Dec. 31, 2010	Jul. 02, 2010	Oct. 31, 2009 October 2009 [Member]
Derivatives, Fair Value [Line Items]
Common stock, shares authorized under plan, in shares	87,543,781		87,543,781		87,367,313			10,900,000
Warrants to purchase common stock, in shars								5,450,000
Common stock warrant liability	$ 1,703,779	$ 10,985,691	$ 1,703,779	$ 10,985,691	$ 8,168,846	$ 8,725,508
Change in fair value of stock warrants	205,700	2,797,928	6,465,067	(2,260,183)
Common stock, price-per-share							$ 2.00
Warrants and Rights Outstanding						$ 13,471,832	$ 5,509,893