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 ($)
Mar. 31, 2017
Dec. 31, 2016
Class of Warrant or Right [Line Items]    
Fair value $ 16,233,831 $ 1,573,366
December 2012 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 42,770 49
July 2013 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 551,440 2,060
October 2013 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 680,918 3,708
January 2014 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 1,082,524 714
November 2015 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 4,380,250 260,500
November 2015 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 285,367 13,542
March 2016 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 3,491,200 358,945
March 2016 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 290,352 21,320
September 2016 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value $ 5,429,010 854,640
September 2016 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value   $ 57,888