This item represents about area of laboratory space.

No definition available.

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Namespace Prefix:	apdn_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	duration

- Definition

The total additional area of lease extended under the laboratory space lease during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	apdn_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	duration

- Definition

This item represents about area of property under operating lease.

+ References

No definition available.

+ Details

Name:	apdn_AreaOfPropertyUnderOperatingLease
Namespace Prefix:	apdn_
Data Type:	dtr-types:areaItemType
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

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

- Definition

The written notice period required for termination of the laboratory lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	apdn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of lessee operating lease monthly payment to be paid.

+ References

No definition available.

+ Details

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

- Definition

Amount of monthly base rent payable for the additional portion leased under the laboratory space lease.

+ References

No definition available.

+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
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COMMITMENTS AND CONTINGENCIES - Operating Leases (Details)				3 Months Ended	6 Months Ended
	Feb. 28, 2025 ft²	Feb. 01, 2025 USD ($) ft²	Feb. 01, 2023 USD ($) ft²	Mar. 31, 2025 USD ($)	Mar. 31, 2025 USD ($) ft²
COMMITMENTS AND CONTINGENCIES
Area of property under operating lease \| ft²					30,000
Initial term expired period			3 years
Area of laboratory space \| ft²	1,000		2,500
Area of laboratory space additional portion \| ft²		2,000
Monthly payments		$ 4,346
Lease terminable		1 month
Total lease rental expenses				$ 178,612	$ 364,582
Leased office space for corporate headquarters
COMMITMENTS AND CONTINGENCIES
Monthly payments of lease		$ 52,440	$ 48,861
Laboratory Space
COMMITMENTS AND CONTINGENCIES
Lessee operating lease term of contract			1 year
Letter of credit
COMMITMENTS AND CONTINGENCIES
Letter of credit amount			$ 750,000