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Goodwill (Tables)
 12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of goodwill
      
December 31,
2020		  December 31,
2021		  December 31,
2020
Goodwill from Shanghai Qishuo acquisition(a)   2,009,769    — 

 

(a)See Note 4 for details.