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INTANGIBLE ASSETS - Summary of intangible assets (Details) - USD ($)
Sep. 30, 2020
Sep. 30, 2019
INTANGIBLE ASSETS    
Internally developed software (5-year useful life) $ 157,221 $ 157,221
Customer relationships (10-year useful life) 621,000 621,000
Intellectual property (5-15 years) 917,350 917,350
Intangible assets, gross 1,695,571 1,695,571
Less: Accumulated amortization 1,090,241 960,800
Total $ 605,330 $ 734,771