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NATURE OF THE BUSINESS (Details) |  |  |  |  |  | 1 Months Ended | 9 Months Ended | 12 Months Ended |
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Jun. 27, 2025 | Jun. 01, 2025 $ / shares | Mar. 13, 2025 $ / shares | Apr. 25, 2024 | Apr. 24, 2024 $ / shares | Jan. 31, 2025 | Apr. 30, 2024 | Jun. 30, 2025 USD ($) item $ / shares | Sep. 30, 2024 item $ / shares | Sep. 30, 2023 $ / shares
NATURE OF THE BUSINESS |  |  |  |  |  |  |  |  |  |
Number of primary markets that use the company's technologies | item |  |  |  |  |  |  |  | 2 | 3 |
Restructuring and related cost |  |  |  |  |  |  |  | $ 300,000 |  |
Reverse stock split of its common stock |  | 0.067 | 0.02 | 0.05 | 0.05 |  | 1 |  |  |
Common stock, par value (in dollars per share) | $ / shares |  | $ 0.001 | $ 0.001 |  | $ 0.001 |  |  | $ 0.001 | $ 0.001 | $ 0.001
Exiting of Segment |  |  |  |  |  |  |  |  |  |
NATURE OF THE BUSINESS |  |  |  |  |  |  |  |  |  |
Reduction of total head counts (in percent) |  |  |  |  |  | 20.00% |  |  |  |
Reduction of payroll costs (in percent) |  |  |  |  |  | 13.00% |  |  |  |
one-time personnel related charges |  |  |  |  |  |  |  | $ 305,000 |  |
Restructuring, Name of Segment [Extensible Enumeration] |  |  |  |  |  |  |  | DNA Tagging and Security Products |  |
Exiting of Segment | Applied DNA Clinical Labs ("ADCL") |  |  |  |  |  |  |  |  |  |
NATURE OF THE BUSINESS |  |  |  |  |  |  |  |  |  |
Reduction of total head counts (in percent) |  |  |  |  |  | 39.00% |  |  |  |
Reduction of payroll costs (in percent) |  |  |  |  |  | 31.00% |  |  |  |
Workforce reduction percentage | 27.00% |  |  |  |  |  |  |  |  |
Percentage of workforce reduction in annual payroll costs , excluding payroll expenses | 23.00% |  |  |  |  |  |  |  |  |

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