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Consolidated Balance Sheets (Parentheticals) - $ / shares
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Ordinary shares, par value (in Dollars per share) $ 0.001 $ 0.001 $ 0.001
Ordinary shares, authorized 1,000,000,000 1,000,000,000 1,000,000,000
Class A shares      
Ordinary shares,issued 327,616,985 46,051,534 46,051,534
Ordinary shares,outstanding 327,616,985 46,051,534 46,051,534
Class B shares      
Ordinary shares,issued 24,468,652 16,409,405 16,409,405
Ordinary shares,outstanding 24,468,652 16,409,405 16,409,405