Represents aggregate purchase price of warrant exercise.

No definition available.

Name:	apdn_AggregatePurchasePriceOfWarrantExercise
Namespace Prefix:	apdn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This element represents the number of warrants exercised by participants.

+ References

No definition available.

+ Details

Name:	apdn_ClassOfWarrantOrRightExercised
Namespace Prefix:	apdn_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents fair value of warrants.

+ References

No definition available.

+ Details

Name:	apdn_FairValueOfWarrants
Namespace Prefix:	apdn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represent income (loss) from change in fair value of warrant liability.

+ References

No definition available.

+ Details

Name:	apdn_IncomeLossFromChangeInFairValueOfWarrantLiability
Namespace Prefix:	apdn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents range of percentage of option to purchase warrant.

+ References

No definition available.

+ Details

Name:	apdn_PercentageOfOptionToPurchaseWarrant
Namespace Prefix:	apdn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ClassOfWarrantOrRightLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Agreed upon price for the exchange of the underlying asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueAssumptionsExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

+ References

+ Details

Name:	us-gaap_FairValueAssumptionsExpectedDividendRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

Name:	us-gaap_FairValueAssumptionsExpectedTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

+ References

+ Details

Name:	us-gaap_FairValueAssumptionsExpectedVolatilityRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Risk-free interest rate assumption used in valuing an instrument.

+ References

+ Details

Name:	us-gaap_FairValueAssumptionsRiskFreeInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of the inputs and valuation technique(s) used to measure fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementsValuationTechniques
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

Name:	us-gaap_SharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	dei_LegalEntityAxis=apdn_CredeCgIIILtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_WarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=apdn_SeriesWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=apdn_SeriesBWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	apdn_AgreementAxis=apdn_WarrantRepurchaseOptionAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

WARRANT LIABILITY (Detail Textuals) - USD ($)	1 Months Ended			12 Months Ended
WARRANT LIABILITY (Detail Textuals) - USD ($)	Nov. 21, 2014	Oct. 28, 2014	Dec. 16, 2013	Sep. 30, 2015	Sep. 30, 2014
Class of Warrant or Right [Line Items]
Loss on change in fair value of warrant liability				$ (2,994,540)	$ (908,005)
Crede CG III, Ltd \| Warrants
Class of Warrant or Right [Line Items]
Fair value of the warrants			$ 2,455,042
Method used for determining allocated fair value of the Warrants			Binomial Lattice model
Fair value of common stock			$ 10.80
Dividend yield			0.00%
Expected terms			4 years 6 months 18 days
Risk free interest rate			1.55%
Expected volatility			118.89%
Expected price at which holders exercise Warrants			$ 14.59
Loss on change in fair value of warrant liability			$ (1,288,752)
Crede CG III, Ltd \| Series A Warrants
Class of Warrant or Right [Line Items]
Cashless exercise of warrant			178,253
Crede CG III, Ltd \| Series B Warrants
Class of Warrant or Right [Line Items]
Cashless exercise of warrant			116,667
Loss on change in fair value of warrant liability				$ 2,994,540	$ 908,005
Warrant repurchase option agreement \| Crede CG III, Ltd \| Series B Warrants
Class of Warrant or Right [Line Items]
Cashless exercise of warrant		387,621
Expected price at which holders exercise Warrants		$ 10.55
Percentage of option to purchase warrant	100.00%
Aggregate purchase price of warrant exercise	$ 4,091,000	$ 4,091,000
Warrant repurchase option agreement \| Crede CG III, Ltd \| Series B Warrants \| Minimum
Class of Warrant or Right [Line Items]
Percentage of option to purchase warrant		50.00%
Warrant repurchase option agreement \| Crede CG III, Ltd \| Series B Warrants \| Maximum
Class of Warrant or Right [Line Items]
Percentage of option to purchase warrant		100.00%