Annual report pursuant to Section 13 and 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 ($)
Dec. 31, 2016
Dec. 31, 2015
Class of Warrant or Right [Line Items]    
Fair value $ 1,573,366 $ 2,739,163
Expired Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value   2,590
December 2012 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 49 9,818
July 2013 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 2,060 121,420
October 2013 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 3,708 169,349
January 2014 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 714 131,476
November 2015 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 260,500 2,169,375
November 2015 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 13,542 $ 135,135
March 2016 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 358,945  
March 2016 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 21,320  
September 2016 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 854,640  
September 2016 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value $ 57,888