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Income Taxes (Details 1)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
The reconciliations of the U.S. federal statutory rate to the effective income tax rate    
Tax provision at U.S. federal statutory rates 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
State taxes 2.60%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes 3.50%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
Federal rate adjustment    34.60%us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingenciesDomestic
State rate adjustment    0.50%us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal
Deferred tax asset adjustments 6.40%us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent 5.90%us-gaap_EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent
Non-deductible permanent items 0.40%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense 0.60%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpense
Stock options    0.40%us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost
Other 0.30%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments 0.50%us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments
Change in valuation allowance (6.30%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance (1219.10%)us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
Effective income tax rate 37.40%us-gaap_EffectiveIncomeTaxRateContinuingOperations (1139.10%)us-gaap_EffectiveIncomeTaxRateContinuingOperations