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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($) | 12 Months Ended
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Sep. 30, 2021 | Sep. 30, 2020
Deferred Advertising Charges | $ 15,000,000 |
Impairment charges | 74,495 | $ 93,244
Penalty For Delays In Consummation of Merger Transaction | 13,333 |
Other Financing Costs Delay Charges | $ 1,560,000 |
Maximum |  |
Amortization period | 36 months |

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