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Cash and Cash Equivalents (Tables)
 12 Months Ended
Dec. 31, 2024
Text block [abstract]  
Summary of Cash and Cash Equivalents
   
December 31
  
   
2023
    
2024
  
   
NT$
    
NT$
    
US$ (Note 4)
  
Cash on hand
  
$
4,623
 
  
$
5,204
 
  
$
159
 
Checking accounts and demand deposits
  
 
55,972,581
  
  
 
54,752,776
  
  
 
1,669,801
  
Cash equivalents (time deposits with original maturity of less than three months)
  
 
11,307,314
 
  
 
21,734,844
 
  
 
662,850
 
 
 
 
    
 
 
    
 
 
  
 
$
 67,284,518
 
  
$
 76,492,824
 
  
$
 2,332,810