v3.22.1
Related party transactions and balances (Details) - USD ($)
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Related party transactions included within interest expense:    
Interest expense on promissory notes issued to relatives of the Chairman and Chief Executive Officer of the Company $ 79,292 $ 78,982
Interest expense on lines of credit payable to the Chairman and Chief Executive Officer of the Company and his spouse 384,922 314,737
Related party transactions included within selling, general and administrative expenses:    
Consulting fees to the Chairman and Chief Executive Officer of the Company accrued on the line of credit available to the Company 62,400 62,400
Salary for services as VP Corporate and Director of the Singapore subsidiary to the spouse of the Chairman and Chief Executive Officer of the Company 11,091
Rent paid to a company controlled by the spouse of the Chairman and immediate family members $ 12,200