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SUBSEQUENT EVENTS (Detail Textuals) (USD $)
12 Months Ended 1 Months Ended 0 Months Ended 2 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2012
Sep. 20, 2014
Dec. 10, 2013
Feb. 06, 2014
Nov. 20, 2014
Feb. 11, 2014
Subsequent Event [Line Items]                
Underwritten public offering of common stock closed   $ 1,438,146us-gaap_StockIssuedDuringPeriodValueNewIssues $ 2,101,000us-gaap_StockIssuedDuringPeriodValueNewIssues          
Gross proceeds from underwritten public offering of common stock and warrants 9,100,000apdn_GrossProceedsFromUnderwrittenPublicOfferingOfCommonStockAndWarrants              
Gross proceeds to repurchase remaining Series B Warrants 4,091,000apdn_GrossProceedsToRepurchaseRemainingSeriesBWarrants              
Deferred offering costs 181,104us-gaap_DeferredOfferingCosts              
Stock Options | Immediate vesting                
Subsequent Event [Line Items]                
Number of shares granted       8,334us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
35,433us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
     
Exercise price per share of options granted       $ 6.00us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
$ 8.16us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
     
Stock Options | Consultant | Immediate vesting                
Subsequent Event [Line Items]                
Number of shares granted           41,667us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_TitleOfIndividualAxis
= apdn_ConsultantMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
   
Exercise price per share of options granted           $ 9.60us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_TitleOfIndividualAxis
= apdn_ConsultantMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
   
Common Stock                
Subsequent Event [Line Items]                
Underwritten public offering of common stock closed   359us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
750us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
         
Number of common stock called by warrants               12,446us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
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= us-gaap_CommonStockMember
Subsequent Event                
Subsequent Event [Line Items]                
Underwritten public offering of common stock closed             2,800,000us-gaap_StockIssuedDuringPeriodValueNewIssues
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= us-gaap_SubsequentEventMember
 
Number of common stock called by warrants             2,800,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
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= us-gaap_SubsequentEventMember
 
Gross proceeds from underwritten public offering of common stock and warrants             9,100,000apdn_GrossProceedsFromUnderwrittenPublicOfferingOfCommonStockAndWarrants
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
 
Gross proceeds to repurchase remaining Series B Warrants             4,091,000apdn_GrossProceedsToRepurchaseRemainingSeriesBWarrants
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
 
Conversion price of convertible promissory note converted into common stock (in dollars per share)             $ 3.25us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
 
Number of days option given to underwriters             45 days  
Additional common stock purchase limit given to underwriters             420,000apdn_AdditionalSharesOfCommonStockPurchaseLimit
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Additional warrants purchase limit given to underwriters             420,000apdn_AdditionalSharesOfWarrantsPurchaseLimit
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Additional number of common stock called by warrants             128,800apdn_AdditionalNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
 
Exercise Price             $ 3.73us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
 
Deferred offering costs             $ 1,212,000us-gaap_DeferredOfferingCosts
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= us-gaap_SubsequentEventMember
 
Subsequent Event | Stock Options | Consultant | Immediate vesting                
Subsequent Event [Line Items]                
Number of shares granted             83,334us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_TitleOfIndividualAxis
= apdn_ConsultantMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
 
Exercise price per share of options granted             $ 2.69us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_TitleOfIndividualAxis
= apdn_ConsultantMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
 
Vesting period of options issued             5 years  
Subsequent Event | Warrants                
Subsequent Event [Line Items]                
Exercise Price             $ 3.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
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= us-gaap_WarrantMember
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