Annual report pursuant to Section 13 and 15(d)

Warrants (Summary Of Changes In Warrants Outstanding During The Period) (Details)

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Warrants (Summary Of Changes In Warrants Outstanding During The Period) (Details) - $ / shares
 12 Months Ended
Oct. 19, 2018
Oct. 17, 2017
Jun. 12, 2017
Dec. 31, 2018
Class of Warrant or Right [Line Items]        
Number of warrants, Outstanding       7,099,609
Number of warrants, issued 5,769,231 1,632,654 1,515,152 6,115,385
Number of warrants, Exercised      
Number of warrants, Expired       (431,732)
Number of warrants, Outstanding       12,783,262
Weigted average exercise price, Outstanding       $ 4.55
Weighted average exercise price, Issued       1.67
Weighted average exercise price, Exercised      
Weighted average exercise price, Expired       5.82
Weigted average exercise price, Outstanding       $ 4.55
Liability-Classified Warrants [Member]        
Class of Warrant or Right [Line Items]        
Number of warrants, Outstanding       7,099,609
Number of warrants, issued      
Number of warrants, Exercised      
Number of warrants, Expired       (431,732)
Number of warrants, Outstanding       6,667,877
Equity-Classified Warrants [Member]        
Class of Warrant or Right [Line Items]        
Number of warrants, Outstanding      
Number of warrants, issued       6,115,385.00
Number of warrants, Exercised      
Number of warrants, Expired      
Number of warrants, Outstanding       6,115,385.00