Income Taxes (Schedule Of Deferred Tax Assets And Valuation Allowance) (Details) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Income Taxes [Abstract]    
Net Operating Loss Carryforwards $ 26,924,000 $ 24,094,200
Stock option expense 2,028,200 1,843,000
Book tax differences on assets and liabilities 424,000 352,500
Valuation Allowance $ (29,376,200) $ (26,289,700)