v3.25.1
Long-Term Investments (Tables)
12 Months Ended
Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]  
Long-Term Investments
As of December 31, 2023 and 2024, the Company held equity investments in several privately-held and listed companies with the carrying value as follows:
 
    
Percentage
of Ownership
   
December 31
 
    
2023
   
2024
   
2023
    
2024
 
                
US$
    
US$
 
Non-marketable
equity securities:
      
Cashido Corp
.
(Cashido)
     1     0     —         —   
Vastview Technology, Corp. (Vastview)
     3     0     —         —   
Kinara, Inc (Kinara)
     14     12     6,500        6,500  
      
 
 
    
 
 
 
         6,500        6,500  
Marketable equity securities:
      
BIWIN Storage Technology Corp. (BIWIN)
     0     0     10,616        6,034  
Shenzhen Techwinsemi Technology Corp (TWSC)
     —        0     —         4,792  
      
 
 
    
 
 
 
         17,116        17,326