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STOCK OPTIONS AND WARRANTS - Employee Stock Options (Detail Textuals 2) (USD $)
12 Months Ended 0 Months Ended 1 Months Ended 0 Months Ended 1 Months Ended 0 Months Ended 1 Months Ended 0 Months Ended 1 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2012
Aug. 05, 2014
Aug. 19, 2014
Feb. 23, 2014
May 15, 2013
May 01, 2014
Apr. 14, 2014
Sep. 20, 2014
Dec. 10, 2013
Oct. 14, 2013
Dec. 02, 2013
Nov. 28, 2013
Jul. 02, 2013
May 12, 2013
Feb. 06, 2014
Oct. 17, 2013
Nov. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                      
Aggregate intrinsic value $ 3.73us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue $ 8.38us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue $ 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue                                
Term of options granted 3 years 7 months 13 days 4 years 11 months 19 days 5 years 7 months 21 days                                
Fair value of options, dividend yield 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate                                
Fair value of options, volatility rate 112.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate 136.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate 155.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate                                
Fair value of options, risk free rate 0.97%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate 0.83%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate 0.95%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate                                
Stock-based compensation expense 2,033,341us-gaap_AllocatedShareBasedCompensationExpense 1,926,129us-gaap_AllocatedShareBasedCompensationExpense 1,953,844us-gaap_AllocatedShareBasedCompensationExpense                                
Unrecorded compensation cost related to non-vested awards 3,429,056us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions                                    
Weighted average period of non-vested awards options 3 years 18 days                                    
Weighted average grant date fair value for options granted $ 2,573,321us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue $ 1,008,744us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue $ 30,328us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue                                
Stock Options                                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                      
Number of options set to expire to June 16, 2018             90,000apdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsEstimatedExpirations
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
                       
Exercised         145,583us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
                           
Incremental stock compensation expense connection with modification 408,605us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
        43,401us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
                         
Number of options extended that were set to expire           16,667apdn_NumberOfOptionsExtendedThatWereSetToExpire
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
                         
Number of options with modified vesting term       33,334apdn_NumberOfOptionsWithModifiedVestingTerm
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
                             
Stock Options | Vesting on each anniversary for next four years                                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                      
Number of shares granted               4,167us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= apdn_VestingOnEachAnniversaryForNextFourYearsMember
33,333us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= apdn_VestingOnEachAnniversaryForNextFourYearsMember
                   
Term of options granted               5 years 5 years                    
Vesting period of options issued               4 years 4 years                    
Percentage of vesting in each year               25.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= apdn_VestingOnEachAnniversaryForNextFourYearsMember
25.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= apdn_VestingOnEachAnniversaryForNextFourYearsMember
                   
Fair value of options, exercise price               $ 6.89us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= apdn_VestingOnEachAnniversaryForNextFourYearsMember
$ 6.60us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= apdn_VestingOnEachAnniversaryForNextFourYearsMember
                   
Stock Options | Immediate vesting                                      
Share-based Compensation Arrangement by Share-based Payment Award [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
               
Term of options granted                   5 years 5 years                
Fair value of options, exercise price                   $ 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
               
Number of options vested during period                       33,333us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
             
Incremental stock compensation expense connection with modification       25,887us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
                             
Stock Options | Incentive Stock Plan 2005                                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                      
Number of shares granted 1,229,717us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
38,323us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
                  122,987us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
33,333us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
4,167us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
1,667us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
1,667us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
     
Term of options granted                       5 years 5 years 5 years 5 years 5 years      
Vesting period of options issued                       4 years 4 years 4 years 4 years 4 years      
Method used to determine fair value of options                             Black-Scholes Option Pricing Model Black Scholes Option Pricing Model      
Percentage of vesting in each year                       25.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
25.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
25.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
25.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
25.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
     
Fair value of options, dividend yield                             0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
     
Fair value of options, volatility rate                             114.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
117.57%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
     
Fair value of options, risk free rate                             1.01%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
0.60%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
     
Fair value of options, exercise price $ 6.03us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
$ 10.88us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
                  5.32us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
$ 7.02us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
$ 6.96us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
$ 11.58us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
$ 12.00us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
     
Number of options vested during period 1,845,368us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
                    89,617us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
             
Exercised 341,668us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
99,650us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
                                 
Stock option exercise price (in dollars per share) $ 3.60us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
$ 2.52us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
                                 
Exercise price per share (in dollars per share) $ 4.74us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
$ 3.78us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
$ 3.60us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
                               
Stock Options | Consultant | Immediate vesting                                      
Share-based Compensation Arrangement by Share-based Payment Award [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
   
Term of options granted                                 5 years    
Fair value of options, exercise price                                 $ 9.60us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_TitleOfIndividualAxis
= apdn_ConsultantMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
   
Stock Options | Chairman CEO And President | Vesting on each anniversary for next four years                                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                      
Number of shares granted                                   833,333us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_TitleOfIndividualAxis
= apdn_ChairmanCeoAndPresidentMember
/ us-gaap_VestingAxis
= apdn_VestingOnEachAnniversaryForNextFourYearsMember
 
Term of options granted                                   5 years  
Vesting period of options issued                                   4 years  
Percentage of vesting in each year                                   25.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_TitleOfIndividualAxis
= apdn_ChairmanCeoAndPresidentMember
/ us-gaap_VestingAxis
= apdn_VestingOnEachAnniversaryForNextFourYearsMember
 
Fair value of options, exercise price                                   $ 5.82us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_TitleOfIndividualAxis
= apdn_ChairmanCeoAndPresidentMember
/ us-gaap_VestingAxis
= apdn_VestingOnEachAnniversaryForNextFourYearsMember
 
Stock Options | Dr. Ming-Hwa Liang | Vesting on each anniversary for next four years                                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                      
Number of shares granted                                   50,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_TitleOfIndividualAxis
= apdn_ChiefTechnologyOfficerAndSecretaryMember
/ us-gaap_VestingAxis
= apdn_VestingOnEachAnniversaryForNextFourYearsMember
 
Term of options granted                                   5 years  
Vesting period of options issued                                   4 years  
Percentage of vesting in each year                                   25.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_TitleOfIndividualAxis
= apdn_ChiefTechnologyOfficerAndSecretaryMember
/ us-gaap_VestingAxis
= apdn_VestingOnEachAnniversaryForNextFourYearsMember
 
Fair value of options, exercise price                                   $ 5.82us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_TitleOfIndividualAxis
= apdn_ChiefTechnologyOfficerAndSecretaryMember
/ us-gaap_VestingAxis
= apdn_VestingOnEachAnniversaryForNextFourYearsMember
 
Stock Options | Non-employee board of director | Incentive Stock Plan 2005 | Immediate vesting                                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                      
Number of shares granted                                   62,963us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
/ us-gaap_TitleOfIndividualAxis
= apdn_NonEmployeeBoardOfDirectorMembersMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
 
Term of options granted                                   5 years  
Fair value of options, exercise price                                   $ 5.82us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
/ us-gaap_PlanNameAxis
= apdn_IncentiveStockPlan2005Member
/ us-gaap_TitleOfIndividualAxis
= apdn_NonEmployeeBoardOfDirectorMembersMember
/ us-gaap_VestingAxis
= apdn_ImmediateVestingMember
 
Non-employee Stock Option | Director                                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                      
Number of shares granted                                     34,989us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_DirectorMember
Term of options granted                                     5 years
Vesting period of options issued                                     1 year
Method used to determine fair value of options                                     Black Scholes Option Pricing Model
Fair value of options, dividend yield                                     0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
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Fair value of options, volatility rate                                     146.33%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
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Fair value of options, risk free rate                                     0.82%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
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Fair value of options, exercise price                                     $ 10.79us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
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