Document and Entity Information
Document and Entity Information - USD ($) $ in Millions | 12 Months Ended | ||
Sep. 30, 2021 | Jan. 24, 2022 | Mar. 31, 2021 | |
Cover [Abstract] | |||
Document Type | 10-K/A | ||
Document Annual Report | true | ||
Document Transition Report | false | ||
Document Period End Date | Sep. 30, 2021 | ||
Entity File Number | 001-36745 | ||
Entity Registrant Name | APPLIED DNA SCIENCES INC | ||
Entity Incorporation, State or Country Code | DE | ||
Entity Tax Identification Number | 59-2262718 | ||
Entity Address, Address Line One | 50 Health Sciences Drive | ||
Entity Address, City or Town | Stony Brook | ||
Entity Address, State or Province | NY | ||
Entity Address, Postal Zip Code | 11790 | ||
City Area Code | 631 | ||
Local Phone Number | 840-8800 | ||
Title of 12(b) Security | Common Stock, $0.001 par value | ||
Trading Symbol | APDN | ||
Security Exchange Name | NASDAQ | ||
Entity Well-known Seasoned Issuer | No | ||
Entity Voluntary Filers | No | ||
Entity Current Reporting Status | Yes | ||
Entity Interactive Data Current | Yes | ||
Entity Filer Category | Non-accelerated Filer | ||
Entity Small Business | true | ||
Entity Emerging Growth Company | false | ||
Entity Shell Company | false | ||
Entity Public Float | $ 45.8 | ||
Entity Common Stock, Shares Outstanding | 7,486,120 | ||
Entity Central Index Key | 0000744452 | ||
Current Fiscal Year End Date | --09-30 | ||
Document Fiscal Year Focus | 2021 | ||
Document Fiscal Period Focus | FY | ||
Amendment Flag | true | ||
Amendment Description | Amendment No.2 |