Stock-Based Compensation (Summary Of Unvested Shares) (Details) (USD $)	3 Months Ended		3 Months Ended	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2013 Nonvested Options [Member]	Dec. 31, 2012 Nonvested Options [Member]
Number of nonvested options, outstanding			922,500	565,000
Number of options, Granted			1,750,000
Number of options, Vested			(1,392,500)
Number of options, Cancelled	(41,000)
Number of nonvested options, outstanding			922,500	565,000
Weighted average fair value at grant date, Unvested			$ 0.66
Weighted average fair value at grant date, Granted			$ 0.25
Weighted average fair value at grant date, Vested	$ 0.95	$ 0.35	$ 0.35
Weighted average fair value at grant date, Unvested			$ 0.36	$ 0.66