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

- 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:

WARRANT LIABILITY (Detail Textuals) (USD $)	12 Months Ended		0 Months Ended	1 Months Ended	2 Months Ended
WARRANT LIABILITY (Detail Textuals) (USD $)	Sep. 30, 2014	Sep. 30, 2013	Dec. 16, 2013	Oct. 28, 2014	Nov. 21, 2014
Class of Warrant or Right [Line Items]
Change in fair value of warrant liability	$ (908,005)	$ (7,508,146)
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
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
Method used for determining allocated fair value of the Warrants		Binomial Lattice model
Fair value of common stock		$ 0.09
Dividend yield		0.00%
Expected terms		4 years 9 months 18 days
Risk free interest rate		1.39%
Expected volatility		121.71%
Expected price at which holders exercise Warrants		$ 14.59
Crede CG III, Ltd \| Series B Warrants
Class of Warrant or Right [Line Items]
Cashless exercise of warrant	387,621		116,667
Fair value of the warrants	1,096,412
Method used for determining allocated fair value of the Warrants	Binomial Lattice model	Binomial Lattice model
Fair value of common stock	$ 5.46	$ 0.09
Dividend yield	0.00%	0.00%
Expected terms	3 years 9 months 18 days	4 years 9 months 18 days
Risk free interest rate	1.43%	1.39%
Expected volatility	98.41%	121.71%
Expected price at which holders exercise Warrants	$ 14.06	$ 14.59
Change in fair value of warrant liability	908,005	7,508,146
Crede CG III, Ltd \| Series B Warrants \| Warrant repurchase option agreement \| Subsequent Event
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
Crede CG III, Ltd \| Series B Warrants \| Warrant repurchase option agreement \| Subsequent Event \| Minimum
Class of Warrant or Right [Line Items]
Percentage of option to purchase warrant				50.00%
Crede CG III, Ltd \| Series B Warrants \| Warrant repurchase option agreement \| Subsequent Event \| Maximum
Class of Warrant or Right [Line Items]
Percentage of option to purchase warrant				100.00%