Quarterly report pursuant to Section 13 or 15(d)

Warrants (Schedule Of Fair Value Of Warrants Issued) (Details)

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Warrants (Schedule Of Fair Value Of Warrants Issued) (Details) - USD ($)
Jun. 30, 2015
Dec. 31, 2014
Class of Warrant or Right [Line Items]    
Fair value $ 2,094,176 $ 3,768,351
March 31, 2011 Warrants To Institutional Investors [Member]    
Class of Warrant or Right [Line Items]    
Fair value 14,237 319,277
December 4, 2012 Warrants To Institutional Investors [Member]    
Class of Warrant or Right [Line Items]    
Fair value 60,381 90,052
December 4, 2012 Warrants To Placement Agent [Member]    
Class of Warrant or Right [Line Items]    
Fair value 9,018 14,595
July 26, 2013 Warrants To Institutional Investors [Member]    
Class of Warrant or Right [Line Items]    
Fair value 523,954 788,314
July 26, 2013 Warrants To Placement Agent [Member]    
Class of Warrant or Right [Line Items]    
Fair value 11,040 30,594
October 16, 2013 Warrants To Institutional Investors [Member]    
Class of Warrant or Right [Line Items]    
Fair value 643,818 949,756
October 16, 2013 Warrants To Placement Agent [Member]    
Class of Warrant or Right [Line Items]    
Fair value 32,466 96,563
January 21, 2014 Warrants To Institutional Investors [Member]    
Class of Warrant or Right [Line Items]    
Fair value $ 799,262 $ 1,479,200