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Stockholders’ equity (Tables)
9 Months Ended
Sep. 30, 2022
Equity [Abstract]  
Schedule of Share- based Payment Arrangement, Warrant Activity

A summary of warrant activity for the quarter ended September 30, 2022 are as follows:

 

   Number of warrants   Exercise price   Expiry date 
Outstanding, December 31, 2020   -   $-      
                
Granted   230,000   CAD$0.98    April 3, 2023 
                
Outstanding December 31, 2021   230,000   CAD$0.98      
                
Granted  -    -    - 
                
Outstanding September 30, 2022   230,000   CAD$0.98      
Schedule of Fair Value of Warrants Assumptions

 

   September 30, 2022   September 30, 2021 
Exercise price  CAD$0.98   CAD$0.98 
Stock price  CAD$0.405   CAD$0.65 
Expected term   0.5 years    1.5 years 
Expected dividend yield   -    - 
Expected stock price volatility   55.09%   90.87%
Risk-free interest rate   3.44%   0.98%
Schedule of Share-based Payment Arrangement, Option, Activity

 

   Number of
options
   Weighted average
exercise price
 
Outstanding December 31, 2020   5,875,750   $0.39 
           
Granted   2,675,000    0.60 
Exercised   (70,000)   (0.45)
Expired   (570,000)   (0.43)
Cancelled   (1,040,600)   (0.42)
           
Outstanding, December 31, 2021   6,870,150   $0.48 
           
Granted   2,550,000    0.40 
Cancelled   (285,000)   (0.47)
           
Outstanding September 30, 2022   9,135,150   $0.43 
Schedule of Share-based Payment Arrangement, Option, Exercise Price Range

The following table summarizes information concerning outstanding and exercisable stock options at September 30, 2022:

 

Exercise
prices per share
   Number outstanding   Number exercisable   Expiry date
CAD$0.45    2,030,400    776,736   June 30, 2025
CAD$0.50    859,600    375,800   February 1, 2026
CAD$0.50    2,445,000    391,200   February 1, 2027
CAD$0.54    506,150    506,150   November 8, 2022
CAD$0.54    713,000    713,000   June 4, 2023
CAD$0.66    200,000    56,000   July 12, 2026
US$0.50    1,275,000    1,275,000   June 4, 2023
CAD$1.02    1,106,000    380,000   April 6, 2026
      9,135,150    4,473,886