Represents Agreement Renewal Period.

No definition available.

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

- Definition

Annual bonus approved if company reaches threshold revenues.

+ References

No definition available.

+ Details

Name:	apdn_ApprovedBonus
Namespace Prefix:	apdn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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:	apdn_CommitmentsAndContingenciesLineItems
Namespace Prefix:	apdn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represent increase revenue bonus if company reached threshold revenues.

+ References

No definition available.

+ Details

Name:	apdn_IncreaseRevenueBonus
Namespace Prefix:	apdn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents Revenue Bonus recorded to long term accrued liabilities on the balance sheet.

+ References

No definition available.

+ Details

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

- Definition

Represents special cash bonus.

+ References

No definition available.

+ Details

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

- Definition

Represents special cash incentive bonus payable on completing threshold annual revenue.

+ References

No definition available.

+ Details

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

- Definition

Represents special cash incentive bonus payable on completing threshold annual revenue in excess of first threshold.

+ References

No definition available.

+ Details

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

- Definition

Represents threshold annual revenue.

+ References

No definition available.

+ Details

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

- Definition

Represents threshold annual revenue in excess of first threshold.

+ References

No definition available.

+ Details

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

- Definition

Represents of threshold revenue for fiscal year.

+ References

No definition available.

+ Details

Name:	apdn_ThresholdRevenueForRepaymentOfSalaryForFiscalYear
Namespace Prefix:	apdn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents threshold revenue for repayment of annual salary.

+ References

No definition available.

+ Details

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

- Definition

Amount of expense for salary and wage arising from service rendered by officer. Excludes allocated cost, labor-related nonsalary expense, and direct and overhead labor cost included in cost of good and service sold.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(4))
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

+ Details

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

- Details

Name:	us-gaap_TypeOfArrangementAxis=apdn_EmploymentAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TitleOfIndividualAxis=us-gaap_ChiefExecutiveOfficerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=apdn_NewEmploymentAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

COMMITMENTS AND CONTINGENCIES (Detail Textuals 1) - USD ($)			1 Months Ended		9 Months Ended
	May 02, 2018	Mar. 15, 2018	Dec. 27, 2018	Jun. 30, 2018	Jun. 30, 2019
Commitments and Contingencies [Line Items]
Revenue bonus recorded to long term accrued liabilities					$ 552,779
Employment Agreement \| CEO
Commitments and Contingencies [Line Items]
Annual base salary					$ 250,000
Approved bonus		$ 121,125	$ 150,000
Increase revenue bonus	$ 403,623
Threshold revenue for two consecutive quarters		3,000,000
Threshold revenue for fiscal year		$ 12,000,000
New Employment Agreement \| CEO
Commitments and Contingencies [Line Items]
Agreement renewal period				1 year
Special cash incentive bonus				$ 800,000
Special cash incentive bonus payable on completing threshold annual revenue				300,000
Threshold annual revenue				8,000,000
Special cash incentive bonus payable on completing threshold annual revenue in excess of first threshold				100,000
Threshold annual revenue in excess of first threshold				$ 2,000,000