Fair Value Measurements (Summary Of Changes In The Fair Value Of The Company's Level 3 Financial Asset And Liabilities) (Details) (USD $)	3 Months Ended
	Mar. 31, 2013
Fair Value, Assets And Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Balance at beginning of period	$ 1,736
Assets, Revaluation	(70)
Assets, Balance at end of period	1,666
Liabilities, Balance at beginning of period	2,968,348
Liabilities, Settlements	(1,631)
Liabilities, Revaluations	(602,446)
Liabilities, Balance at end of period	2,364,271
Warrants Issued December 29, 2008 [Member]
Fair Value, Assets And Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Balance at beginning of period	71,581
Liabilities, Revaluations	(45,573)
Liabilities, Balance at end of period	26,008
Warrants Issued May 10, 2012 [Member]
Fair Value, Assets And Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Balance at beginning of period	2,347,902
Liabilities, Revaluations	(386,682)
Liabilities, Balance at end of period	1,961,220
Derivative Liability [Member]
Fair Value, Assets And Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Balance at beginning of period	548,865
Liabilities, Settlements	(1,631)
Liabilities, Revaluations	(170,191)
Liabilities, Balance at end of period	377,043
Derivative Asset [Member]
Fair Value, Assets And Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Balance at beginning of period	1,736
Assets, Revaluation	(70)
Assets, Balance at end of period	$ 1,666