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NOTE 7. INTANGIBLES (Details Narrative) (USD $)
3 Months Ended 6 Months Ended
Oct. 31, 2014
Oct. 31, 2013
Oct. 31, 2014
Oct. 31, 2013
Finite-Lived Intangible Assets, Net [Abstract]        
Amortization expenses $ 254us-gaap_AmortizationOfIntangibleAssets $ 271us-gaap_AmortizationOfIntangibleAssets $ 512us-gaap_AmortizationOfIntangibleAssets $ 547us-gaap_AmortizationOfIntangibleAssets
Estimated aggregate amortization expense per year for next five years     $ 1,200energizer_EstimatedAggregateAmortizationExpensePerYearForNextFiveYears