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Stockholders' Equity (Details 1) (USD $)
 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Jan. 31, 2011
Dec. 31, 2012
December 2011 financing [Member]
Dec. 31, 2011
December 2011 financing [Member]
Dec. 31, 2012
January 2011 financing [Member]
Dec. 31, 2011
January 2011 financing [Member]
Dec. 31, 2012
July 2009 financing [Member]
Dec. 31, 2011
July 2009 financing [Member]
Dec. 31, 2012
Warrants assumed in June 2009 Merger [Member]
Dec. 31, 2011
Warrants assumed in June 2009 Merger [Member]
Dec. 31, 2012
August 2007 consulting services [Member]
Dec. 31, 2011
August 2007 consulting services [Member]
Dec. 31, 2012
Minimum [Member]
Warrants assumed in June 2009 Merger [Member]
Dec. 31, 2012
Maximum [Member]
Warrants assumed in June 2009 Merger [Member]
Summary of warrants outstanding                              
Exercise Price     1.40 0.65   1.40   3.38       3.00   0.05 1.28
Expiration Date       Dec. 06, 2016   Jan. 27, 2016   Jul. 01, 2014       Aug. 03, 2012   Mar. 24, 2013 Apr. 28, 2016
Number of Warrants 21,593,844 21,743,844   5,774,784 5,774,784 10,565,200 10,565,200 333,333 333,333 4,920,527 4,920,527 0 150,000    
Common Stock Warrant Liability $ 2,859,899 $ 5,176,319   $ 2,078,921 $ 1,963,427 $ 779,711 $ 3,169,560 $ 1,267 $ 43,332 $ 0 $ 0 $ 0 $ 0