Quarterly report pursuant to Section 13 or 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
6 Months Ended
Jun. 12, 2017
Jun. 30, 2017
Jun. 30, 2016
Warrants [Abstract]      
Number of warrants, Outstanding   5,452,691 2,649,199
Weigted average exercise price, Outstanding   $ 4.92 $ 7.97
Number of warrants, issued 1,515,152 1,696,970 1,250,000
Weighted average exercise price, Issued   $ 4.01 $ 4.20
Number of warrants, Exercised   (1,861,195)
Weighted average exercise price, Exercised   $ 3.51
Number of warrants, Expired    
Weighted average exercise price, Expired    
Number of warrants, Outstanding   5,288,466 3,899,199
Weigted average exercise price, Outstanding   $ 5.13 $ 6.76