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3. INTANGIBLE ASSETS, NET (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Amortization expense $ 403,544 $ 316,516 $ 813,592 $ 590,496
Maximum [Member]        
Intangible assets useful lives     5 years  
Minimum [Member]        
Intangible assets useful lives     3 years