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, 2020
Dec. 31, 2019
Class of Warrant or Right [Line Items]    
Fair value $ 100,109 $ 41,717
November 2015 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 971 55
March 2016 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 1,240 439
September 2016 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 14,639 3,196
June 2017 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 30,364 11,736
June 2017 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 2,574 845
October 2017 Investor Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value 46,178 23,772
October 2017 Placement Agent Warrants [Member]    
Class of Warrant or Right [Line Items]    
Fair value $ 4,143 $ 1,674