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INTANGIBLE ASSETS - Summary of intangible assets (Details)
12 Months Ended
Sep. 30, 2021
USD ($)
INTANGIBLE ASSETS  
Customer relationships (10-year useful life) $ 621,000
Intellectual property (5-15 years) 917,350
Intangible assets, gross 1,538,350
Less: Accumulated amortization 1,001,995
Impairment losses $ 536,355