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Trade and other payables (Tables)
 12 Months Ended
Dec. 31, 2019
Payables And Accruals [Abstract]  
Summary of Trade and Other Payables

 

 

 

2019

 

 

2018

 

Trade payables

 

$

1,213,276

 

 

$

1,316,821

 

Accruals and other payables

 

 

4,983,465

 

 

 

4,446,401

 

 

 

$

6,196,741

 

 

$

5,763,222