Quarterly report pursuant to Section 13 or 15(d)

Warrants (Schedule Of Unrealized Gain/(Loss) On Fair Value Of Warrants) (Details)

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Warrants (Schedule Of Unrealized Gain/(Loss) On Fair Value Of Warrants) (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants $ 3,120,500 $ 967,637 $ (9,047,831) $ 3,941,682
Expired Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants       2,590
December 2012 Investor Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants 7,306 2,212 39 9,490
July 2013 Investor Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants 125,686 22,040 (55,362) 115,940
October 2013 Investor Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants 135,683 30,264 (102,608) 159,871
January 2014 Investor Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants 177,900 12,190 (125,148) 129,905
November 2015 Investor Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants 797,688 409,125 (1,304,350) 1,613,750
November 2015 Placement Agent Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants 1,691 24,683 (366,694) 104,842
March 2016 Investor Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants 356,472 425,625 (2,873,309) 1,677,891
March 2016 Placement Agent Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants   26,283 (351,899) 112,188
September 2016 Investor Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants 506,353 12,780 (4,807,246) 12,780
September 2016 Placement Agent Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants   $ 2,435 (503,150) $ 2,435
June 2017 Investor Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants 894,076   1,277,485  
June 2017 Placement Agent Warrants [Member]        
Class of Warrant or Right [Line Items]        
Unrealized gain (loss) on fair value of warrants $ 117,645   $ 164,411