v3.26.1
Long-Term Investments (Tables)
12 Months Ended
Dec. 31, 2025
Investments, Debt and Equity Securities [Abstract]  
Long-Term Investments
As of December 31, 2024 and 2025, the Company held equity investments in several privately-held and listed companies with the carrying value as follows:
 
    
Percentage
of Ownership
   
December 31
 
    
2024
   
2025
   
2024
    
2025
 
                
US$
    
US$
 
Non-marketable
equity securities:
         
Cashido Corp.
(Cashido)
     0     0     —         —   
Vastview Technology, Corp. (Vastview)
     0     0     —         —   
Kinara, Inc (Kinara)
     12     0     6,500        —   
      
 
 
    
 
 
 
         6,500        —   
Marketable equity securities:
      
BIWIN Storage Technology Corp. (BIWIN)
     0     0     6,034        11,432  
Shenzhen Techwinsemi Technology Corp (TWSC)
     0     0     4,792        18,244  
      
 
 
    
 
 
 
         17,326        29,676