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Financial assets at amortized cost (Tables)
12 Months Ended
Dec. 31, 2020
Text block [abstract]  
Summary of Financial Assets at Amortized Cost
   
December 31,
2019
   
December 31,
2020
 
   
NT$000
   
NT$000
 
Current:
    
Time deposits
  
 
168,970
 
  
 
206,482
 
  
 
 
   
 
 
 
Non-current:
    
Restricted bank deposits
  
 
68,450
 
  
 
48,319
 
  
 
 
   
 
 
 
 
 a)
Amounts recognized in profit or loss in relation to financial assets at amortized cost are listed below:
 
   
Year ended December 31,
 
   
2018
   
2019
   
2020
 
   
NT$000
   
NT$000
   
NT$000
 
Interest income
  
 
920
 
  
 
4,467
 
  
 
2,206