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Land Use Rights, Net (Tables)
 12 Months Ended
Dec. 31, 2020
Land Use Rights Net [Abstract]  
Schedule of land use rights
 

December 31,
2019

  

December 31,
2020

Cost of land use rights

  

$

15,002

 

  

$

16,007

 

Less: accumulated amortization

  

 

(1,580

)

  

 

(2,006

)

Land use rights, net

  

$

13,422

 

  

$

14,001