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PROMISSORY NOTES PAYABLE (Detail Textuals) (USD $)
12 Months Ended 0 Months Ended
Sep. 30, 2014
Sep. 11, 2014
Short-term Debt [Line Items]    
Convertible promissory note issued to related party $ 1,000,000us-gaap_DebtInstrumentFaceAmount  
Promissory notes    
Short-term Debt [Line Items]    
Convertible promissory note issued to related party   1,800,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember
Interest rate on promissory note   12.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember
Interest expense 11,875us-gaap_InterestExpenseDebt
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember
 
Promissory notes | James A. Hayward    
Short-term Debt [Line Items]    
Convertible promissory note issued to related party   1,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= apdn_PresidentChairmanAndChiefExecutiveOfficerMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember
Common stock issued in settlement of convertible debentures and interest (in shares)   315,171us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= apdn_PresidentChairmanAndChiefExecutiveOfficerMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember
Number of shares issued in settlement of convertible notes and accrued interest   315,171apdn_NumberOfSharesIssuedInSettlementOfConvertibleNotesAndAccruedInterest
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= apdn_PresidentChairmanAndChiefExecutiveOfficerMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember
Conversion price of convertible promissory note converted into common stock (in dollars per share)   $ 3.25us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= apdn_PresidentChairmanAndChiefExecutiveOfficerMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember
Promissory notes | Another individual    
Short-term Debt [Line Items]    
Convertible promissory note issued to related party   $ 800,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= apdn_AnotherIndividualMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember
Common stock issued in settlement of convertible debentures and interest (in shares)   252,137us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= apdn_AnotherIndividualMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember
Number of shares issued in settlement of convertible notes and accrued interest   252,137apdn_NumberOfSharesIssuedInSettlementOfConvertibleNotesAndAccruedInterest
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= apdn_AnotherIndividualMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember
Conversion price of convertible promissory note converted into common stock (in dollars per share)   $ 3.25us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= apdn_AnotherIndividualMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ConvertibleNotesPayableMember