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, 2020
Dec. 31, 2019
Class of Warrant or Right [Line Items]    
Fair value $ 268,811 $ 41,717
November 2015 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 3,286 55
March 2016 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 6,362 439
September 2016 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 28,765 3,196
June 2017 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 83,463 11,736
June 2017 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 6,348 845
October 2017 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 129,299 23,772
October 2017 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value $ 11,288 $ 1,674