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Income Taxes (Details) (USD $)
1 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2015
Apr. 30, 2015
Apr. 30, 2014
Dec. 31, 2014
Dec. 31, 2013
Income Taxes.          
Federal income taxes $ 0us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations $ 0us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations $ 0us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations $ 0us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations $ 0us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations
Liability for unrecognized tax benefits $ 0us-gaap_UnrecognizedTaxBenefits $ 0us-gaap_UnrecognizedTaxBenefits