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Noncurrent Assets Held for Sale
12 Months Ended
Dec. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]  
Noncurrent Assets Held for Sale
8. NONCURRENT ASSETS HELD FOR SALE
 
    
December 31
 
    
2019
    
2020
 
    
US$
    
US$
 
Assets held for sale
     10,405        11,124  
    
 
 
    
 
 
 
       10,405        11,124  
    
 
 
    
 
 
 
The Company vacated from premises in an office building located in Shanghai, China and in 2018 took actions to sell this property. The sale plan met all of the
held-for-sale
criteria in accordance with ASC 360 — Property, Plant and Equipment and accordingly, in 2018, the property was reclassified to noncurrent assets held for sale. Assets held for sale are measured at the lower of their carrying amount and fair value less cost to sell. Assets held for sale are no longer amortized or depreciated. The Company has continues to actively market the asset according to reasonable valuation benchmarks.