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Lease liabilities (Tables)
12 Months Ended
Dec. 31, 2022
Lease liabilities [abstract]  
Schedule of remaining contractual maturities of the lease liabilities
    
2022
$
    
2021
$
 
Within 1 year
     2,882,933        1,666,978  
    
 
 
    
 
 
 
After 1 year but within 2 years
     1,464,200        1,191,547  
After 2 years but within 5 years
     1,294,278        1,298,897  
After 5 years
     1,004,752        1,109,788  
    
 
 
    
 
 
 
       3,763,230        3,600,232  
    
 
 
    
 
 
 
Total
     6,646,163        5,267,210