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STOCK OPTIONS AND WARRANTS - Transactions involving warrants (Details 1) (Warrants, USD $) | 12 Months Ended
--- | ---
Sep. 30, 2013 | Sep. 30, 2012
Warrants |  |
Class Of Warrant Or Right, Number Of Shares [Roll Forward] |  |
Beginning Balance, Number of Shares | 45,840,647 | 58,205,280
Granted | 134,249,218 | 1,075,000
Exercised | (60,236,873) | (5,039,633)
Cancelled or expired | (60,819,687) | (8,400,000)
Ending Balance, Number of Shares | 59,033,305 | 45,840,647
Class Of Warrant Or Right, Weighted Average Price Per Share [Roll Forward] |  |
Beginning Balance, Weighted Average Price Per Share | $ 0.145 | $ 0.140
Granted | $ 0.233 | $ 0.071
Exercised | $ (0.170) | $ (0.045)
Cancelled or expired | $ (0.265) | $ (0.161)
Ending Balance, Weighted Average Price Per Share | $ 0.196 | $ 0.145

X
- 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

X
- Definition This element represents the number of warrants that were either cancelled or expired. + References No definition available. + Details
Name: | apdn_ClassOfWarrantOrRightForfeituresAndExpirations
Namespace Prefix: | apdn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents number of warrants granted to participants. + References No definition available. + Details
Name: | apdn_ClassOfWarrantOrRightGranted
Namespace Prefix: | apdn_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
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Namespace Prefix: | apdn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: | apdn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents weighted average exercise price per share or per unit of warrants or rights Cancelled or expired. + References No definition available. + Details
Name: | apdn_WeightedAveragePricePerShareWarrantCancelledOrExpired
Namespace Prefix: | apdn_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents weighted average exercise price per share or per unit of warrants or rights exercised. + References No definition available. + Details
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Namespace Prefix: | apdn_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents weighted average exercise price per share or per unit of warrants or rights granted. + References No definition available. + Details
Name: | apdn_WeightedAveragePricePerShareWarrantGranted
Namespace Prefix: | apdn_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents weighted average exercise price per share or per unit of warrants or rights outstanding. + References No definition available. + Details
Name: | apdn_WeightedAveragePricePerShareWarrantOutstanding
Namespace Prefix: | apdn_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Article 4 + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant