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7. Intangible Assets, Net (Details) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]    
Intangible assets, gross $ 529,537 $ 536,530
Accumulated amortization (114,335) (62,595)
Intangible assets, net $ 415,202 $ 473,935