Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Intangible assets (Details)

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Intangible assets (Details) - USD ($)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Intangible assets      
Balance at beginning $ 199,834    
Amortization 66,632 $ 17,077 $ 14,266
Balance at ending 175,254 199,834  
Carrying values      
Intangible assets      
Balance at beginning 199,834 202,125  
Balance at ending 175,254 199,834 202,125
Cost      
Intangible assets      
Balance at beginning 294,751 287,905  
Additions 42,052 26,005  
Foreign currency translation adjustment   (19,159)  
Balance at ending 336,803 294,751 287,905
Accumulated amortization      
Intangible assets      
Balance at beginning (94,917) (85,780)  
Amortization 66,632 17,077  
Foreign currency translation adjustment   (7,940)  
Balance at ending $ (161,549) $ (94,917) $ (85,780)