XML 46 R39.htm IDEA: XBRL DOCUMENT v2.4.0.8
Stockholders' Equity (Details 1) (USD $)
 9 Months Ended
Sep. 30, 2013
Dec. 31, 2012
Summary of warrants outstanding    
Number of Warrants 14,639,260 21,593,844
Common Stock Warrant Liability $ 14,095,818 $ 2,859,899
March 2013 Financing [Member]
    
Summary of warrants outstanding    
Exercise Price 0.79  
Expiration Date Sep. 12, 2018  
Number of Warrants 3,397,725 0
Common Stock Warrant Liability 6,292,586 0
December 2011 financing [Member]
    
Summary of warrants outstanding    
Exercise Price 0.65  
Expiration Date Dec. 06, 2016  
Number of Warrants 0 5,774,784
Common Stock Warrant Liability 0 2,078,921
January 2011 financing [Member]
    
Summary of warrants outstanding    
Exercise Price 1.40  
Expiration Date Jan. 27, 2016  
Number of Warrants 6,900,000 10,565,200
Common Stock Warrant Liability 7,658,999 779,711
July 2009 financing [Member]
    
Summary of warrants outstanding    
Exercise Price 3.38  
Expiration Date Jul. 01, 2014  
Number of Warrants 333,333 333,333
Common Stock Warrant Liability 144,233 1,267
Warrants assumed in June 2009 Merger [Member]
    
Summary of warrants outstanding    
Number of Warrants 4,008,202 4,920,527
Common Stock Warrant Liability $ 0 $ 0
Minimum [Member] | Warrants assumed in June 2009 Merger [Member]
    
Summary of warrants outstanding    
Exercise Price 1.02  
Expiration Date Aug. 01, 2015  
Maximum [Member] | Warrants assumed in June 2009 Merger [Member]
    
Summary of warrants outstanding    
Exercise Price 1.28  
Expiration Date Apr. 28, 2016