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, 2017
Dec. 31, 2016
Class of Warrant or Right [Line Items]    
Fair value $ 9,796,591 $ 1,573,366
December 2012 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 7,316 49
July 2013 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 183,108 2,060
October 2013 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 241,999 3,708
January 2014 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 303,762 714
November 2015 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 2,362,538 260,500
November 2015 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 5,573 13,542
March 2016 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 1,219,172 358,945
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 1,795,810 854,640
September 2016 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value   $ 57,888
June 2017 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 3,289,759  
June 2017 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value $ 387,554