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Accounts Payable and Accrued Liabilities
12 Months Ended
Dec. 31, 2020
Accounts Payable and Accrued Liabilities [Abstract]  
Accounts Payable and Accrued Liabilities 6. Accounts payable and accrued liabilities

Accounts payable and accrued liabilities include the following at December 31, 2020 and 2019:

2020

2019

Accounts payable

$

799,888

$

809,444

Accrued payroll including vacation

583,301

236,489

Accrued professional fees and contract services

278,165

346,349

Accrued taxes

86,052

68,831

Accrued other

12,697

1,696

Accounts payable and accrued liabilities

$

1,760,103

$

1,462,809