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DEBT - Convertible Debt Issuances and Warrants (Details) - USD ($) |  |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 03, 2021 | Aug. 19, 2021 | Jul. 26, 2021 | Jul. 22, 2021 | May 26, 2021 | May 16, 2021 | Sep. 30, 2021 | Sep. 30, 2020
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Unsecured convertible note agreement with TDR Capital | $ 6,600,000 | $ 1,100,000 |  | $ 2,420,000 | $ 4,400,000 |  |  |
Debt interest rate | 15.00% |  |  |  |  |  |  |
Amortization of debt discount |  |  |  |  |  |  | $ 8,211,648 | $ 16,008,454
Original issue discount of convertible debt |  | $ 100,000 | $ 100,000 | $ 242,000 |  |  |  |
Shares acquire | 2,180,750 |  |  |  |  |  |  |
Warrants exercise price | $ 0.6877 | $ 0.6877 | $ 0.6877 | $ 0.6877 | $ 0.6877 |  | $ 0.6877 |
Warrant expiration term | 5 years | 5 years | 5 years | 5 years | 5 years |  |  |
Fair value of the MAI warrants |  |  |  |  | $ 24,358,875 |  | $ 13,700,000 |
Original issue discount | $ 660,000 |  |  |  | 3,726,816 |  | $ 8,060,555 | $ 1,401,062
Beneficial conversion discount |  |  |  |  | $ 673,184 |  |  |
Amortization period |  |  |  |  |  | 12 months |  |
Ownership percentage | 9.90% | 9.90% |  | 9.90% | 9.90% |  |  |
Convertible debt | $ 6,050,000 |  |  |  |  |  |  |
Received from TDR Capital convertible debt issuance | $ 550,000 |  |  |  |  |  |  |
MTI common stock |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Shares acquire |  | 4,361,500 | 4,361,500 | 9,595,300 | 17,446,000 |  |  |
MAI warrants |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Shares acquire | 169,764 | 339,528 | 339,528 | 746,961 | 1,358,112 |  |  |
Warrants exercise price | $ 8.84 | $ 8.84 | $ 8.84 | $ 8.84 | $ 8.84 |  |  |
MAI warrants | MTI common stock |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Shares acquire | 1,867,423 |  |  |  |  |  |  |
MTI warrants | MTI common stock |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Shares acquire | 23,988,500 |  |  |  |  |  |  |
TDR Capital |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Unsecured convertible note agreement with TDR Capital |  |  | $ 1,100,000 |  |  |  |  |
Convertible note debt discount rate |  | 10.00% | 10.00% | 10.00% | 10.00% |  |  |
Debt interest rate | 10.00% | 15.00% | 15.00% | 15.00% | 15.00% |  |  |
Maturity term | 1 year | 1 year | 1 year | 1 year | 1 year |  |  |
Original issue discount of convertible debt |  |  |  |  | $ 400,000 |  |  |
Ownership percentage |  |  | 9.90% |  |  |  |  |
Received from TDR Capital convertible debt issuance | $ 550,000 |  |  |  |  |  |  |
Convertible Unsecured Notes |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt interest rate |  |  |  |  |  |  |  | 20.00%
Convertible Unsecured Notes | Minimum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt interest rate |  |  |  |  |  |  | 15.00% |
Convertible Unsecured Notes | Maximum |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt interest rate |  |  |  |  |  |  | 20.00% |

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- Definition The amount of unsecured convertible debt with troubled debt restructuring capital. + References No definition available. + Details
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- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1F -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition Amount of a favorable spread to a debt holder between the amount of debt being converted and the value of the securities received upon conversion. This is an embedded conversion feature of convertible debt issued that is in-the-money at the commitment date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21538-112644 + Details
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- Definition Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031898-161870 + Details
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