Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Intangible Assets, Net (Details)

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Intangible Assets, Net (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]      
Amortization expenses $ 428,434 $ 428,431 $ 470,773
Amortization next five years $ 428,434