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6. INTANGIBLE ASSETS (Tables)
6 Months Ended
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
INTANGIBLE ASSETS - Estimated Useful Life
Useful life    
Patents   13-20 years
Websites   3 years
Customer list and non-compete agreement   1.5-4 years
Design assets   2 years
Trademarks   14 years
Engineering trade secrets   1-7 years
Strategic contract   5 years
Software   4 years
INTANGIBLE ASSETS - Schedule of Intangible Assets
   March 31, 2021  September 30, 2020
Patents  $74,112   $74,112
Websites   8,115    8,115
Customer list and non-compete agreement   11,824,757    6,702,024
Design assets   123,000    123,000
Trademarks   5,928    5,928
Trade secrets   4,370,269    4,370,269
Software   1,120,000    1,120,000
Strategic contract   7,457,970       
Intangible assets:   24,984,151    12,403,448
Less: accumulated amortization   (7,651,331)   (5,353,792)
Intangible assets, net  $17,332,820   $7,049,656
INTANGIBLE ASSETS - Amortization Expense
           
2021 (six months remaining)   $3,882,949 
2022    7,072,469 
2023    2,492,479 
2024    2,065,344 
2025    1,495,888 
Thereafter    323,691 
Total   $17,332,820