Warrants (Summary Of Changes In Warrants Outstanding During The Period) (Details) (USD $)	0 Months Ended		3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2015	Mar. 31, 2014
Warrants [Abstract]
Number of warrants, Outstanding	13,205,871	24,968,868	13,205,871	24,968,868
Weigted average exercise price, Outstanding	$ 1.07	$ 0.86	$ 1.07	$ 1.16
Number of warrants, Issued				4,761,905
Weighted average exercise price, Issued				$ 1.28
Number of warrants, Exercised				(10,808,871)
Weighted average exercise price, Exercised				$ 0.52
Number of warrants, Expired
Number of warrants, Outstanding			13,205,871	18,921,902
Weigted average exercise price, Outstanding	$ 1.07	$ 0.86	$ 1.07	$ 1.16