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Short-Term Investments
12 Months Ended
Dec. 31, 2016
Short-Term Investments

5. SHORT-TERM INVESTMENTS

 

     December 31  
     2015      2016  
     US$      US$  

Trading securities

     681        3,302  

Held-to-maturity investments

     4,000        —    
  

 

 

    

 

 

 
     4,681        3,302  
  

 

 

    

 

 

 

The Company classified certain short-term investments as trading securities and held-to-maturity investments. Realized gains on sales of these trading securities were US$4 thousand, US$3 thousand and US$2 thousand for the years ended December 31, 2014, 2015 and 2016, respectively. The amount of unrealized losses related to trading securities at year end was nil for the years ended December 31, 2014, 2015 and 2016, respectively.