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Amount of Shares of Common Stock Reserved (Detail)
Dec. 31, 2014
Mar. 31, 2014
Stock Option Outstanding [Line Items]    
Common stock issued and outstanding 48,634,549ameh_CommonSharesIssuedAndOutstanding  
Conversion of 9% Notes 2,750,000ameh_CommonStockIssuableUponConversionOfConvertibleNineSeniorNotes  
Conversion of 8% Notes 2,000,000ameh_CommonStockIssuableUponConversionOfConvertibleEightSeniorNotes  
Warrants outstanding 9,145,000us-gaap_ClassOfWarrantOrRightOutstanding 7,145,000us-gaap_ClassOfWarrantOrRightOutstanding
Stock options outstanding 7,042,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber 6,287,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Remaining shares issuable under 2013 Equity Incentive Plan 1,600,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant  
Common stock reserved for future issuance 71,171,549us-gaap_CommonStockCapitalSharesReservedForFutureIssuance