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Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of land use rights
   2021   2020 
   (In thousands of
U.S. Dollars)		 
Land use rights  $5,857   $5,727 
Less: accumulated amortization   (1,381)   (1,321)
Land use rights, net  $4,476   $4,406