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

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

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

Amount of expense (income) related to adjustment to fair value of warrant liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 480

-SubTopic 10

-Section 25

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=6939902&loc=d3e20148-110875

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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:
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WARRANT LIABILITY (Detail Textuals) (USD $)	3 Months Ended	6 Months Ended		0 Months Ended	1 Months Ended	2 Months Ended
WARRANT LIABILITY (Detail Textuals) (USD $)	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Dec. 16, 2013	Oct. 28, 2014	Nov. 21, 2014
Class of Warrant or Right [Line Items]
Cashless exercise of warrant
Gain (loss) on change in fair value of warrant liability	$ 455,899	$ (2,994,540)	$ (2,178,859)
Crede CG III, Ltd \| Warrants
Class of Warrant or Right [Line Items]
Fair value of 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
Gain (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
Crede CG III, Ltd \| Series B Warrants \| Warrant repurchase option agreement
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 \| 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 \| Maximum
Class of Warrant or Right [Line Items]
Percentage of option to purchase warrant					100.00%