Equity Issuances (Summary Of Warrants Outstanding and Exercisable) (Details) (USD $)			9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2012 $0.05 - $0.25	Sep. 30, 2012 $0.25 - $2.50	Sep. 30, 2012 > $2.50
Range of Exercise Price, Minimum			$ 0.03	$ 0.25	$ 2.50
Range of Exercise Price, Maximum			$ 0.25	$ 2.50
Warrants outstanding at September 30, 2012	68,852,285	64,336,691	63,392,375	1,010,000	4,449,910
Warrants outstanding, Weighted-average remaining life, in years			2.65	1.95	0.10
Warrants outstanding, Weighted-average exercise price			$ 0.09	$ 0.31	$ 2.77
Warrants exercisable, at September 30, 2012	61,760,618		56,300,708	1,010,000	4,449,910
Warrants exercisable, Weighted-average remaining life, in years			2.60	0.83	0.34
Warrants exercisable, Weighted-average exercise price			$ 0.09	$ 0.31	$ 2.77