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Income Taxes (Reconciliation Of Gross Unrecognized Tax Benefits) (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Income Tax Expense (Benefit), Continuing Operations [Abstract]    
Gross unrecognized tax benefits at January 1 $ 197,189us-gaap_UnrecognizedTaxBenefits $ 56,593us-gaap_UnrecognizedTaxBenefits
Increases in tax positions for prior years 22,538us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions 83us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
Increases in tax positions for current year 181us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions 140,513us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
Gross unrecognized tax benefits at December 31 $ 219,908us-gaap_UnrecognizedTaxBenefits $ 197,189us-gaap_UnrecognizedTaxBenefits