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4. INTANGIBLE ASSETS (Details Narrative) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]    
Weighted-average amortization period 12 years 9 months 18 days  
Amortization expense $ 223,528 $ 90,011