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DEBT - SBA Loans (Details) - USD ($) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Nov. 30, 2020 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 03, 2021 | Apr. 14, 2020
Debt Instrument [Line Items] |  |  |  |  |
Interest rate (as a percent) |  |  |  | 15.00% |
Gain on extinguishment of indebtedness, net |  |  | $ 890,581 |  |
Other DBI |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Forgiveness amount | $ 875,426 |  |  |  |
Interest amount | 5,155 |  |  |  |
Gain on extinguishment of indebtedness, net | $ 890,581 |  |  |  |
Accrued principal and interest |  | 3.75% |  |  |
Other DBI | MTI warrants |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Promissory note amount |  | $ 10,000 |  |  |
SBA loan |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Unsecured loan |  |  |  |  | $ 885,426
Interest rate (as a percent) |  |  |  |  | 1.00%

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