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WARRANTS AND STOCK OPTIONS (Tables)
 12 Months Ended
Dec. 31, 2020
Warrants And Stock Options [Abstract]  
Disclosure of detailed information about warrants, activity [Table Text Block]
    Number of
warrants		     Weighted average
exercise price		  
          $  
DECEMBER 31, 2018 and 2019   1,452,533     1.75  
             
Issued   1,500,000     0.85  
Expired   (1,452,533 )   1.75  
             
DECEMBER 31, 2020   1,500,000     0.85  
Disclosure of detailed information about warrants outstanding [Table Text Block]
Warrant outstanding,
by exercise price		   Number of
warrants		     Weighted average
exercise price		     Average
remaining
contractual life		  
          $     years  
$0.85   1,500,000     0.85     4.16  
                   
DECEMBER 31, 2020   1,500,000     0.85     4.16  
Disclosure of number and weighted average exercise prices of share options [Table Text Block]
    Number of
stock options		     Weighted average
exercise price		  
          $  
DECEMBER 31, 2018   5,200,001     0.98  
             
Granted   2,075,000     0.87  
Exercised   (125,000 )   0.58  
Expired   (850,000 )   0.90  
Forfeited   (150,000 )   1.20  
             
DECEMBER 31, 2019   6,150,001     0.96  
             
Granted   2,350,000     1.59  
Exercised   (1,133,334 )   0.75  
Cancelled   (100,000 )   0.90  
Forfeited   (66,667 )   1.66  
Expired   (100,000 )   0.67  
             
DECEMBER 31, 2020   7,075,000     1.19  
Disclosure of stock options outstanding by exercise price [Table Text Block]
Stock options outstanding,
by exercise price		   Number of
Stock options		     Weighted average
exercise price		     Average
remaining
contractual life		  
          $     years  
$0.75 - $0.90   1,950,000     0.87     3.43  
$0.96   1,100,000     0.96     0.70  
$1.11 - $1.20   2,000,000     1.19     2.37  
$1.41   200,000     1.41     4.86  
$1.66   1,825,000     1.66     4.57  
                   
DECEMBER 31, 2020   7,075,000     1.19     3.04  
Disclosure of detailed information about share options valuation assumptions [Table Text Block]
                               
    November 9,     July 27,     June 11,     June 18,     April 23,  
Inputs and assumptions   2020     2020     2020     2019     2019  
                               
Stock options granted   200,000     1,950,000     200,000     1,675,000     400,000  
Exercise price $ 1.41   $ 1.66   $ 1.11   $ 0.90   $ 0.75  
                               
Market price $ 1.41   $ 1.61   $ 1.11   $ 0.78   $ 0.72  
Expected option term (years)   3.0     3.0     3.0     3.0     3.0  
Expected stock price volatility   58.0%     56.6%     49.7%     51.8%     51.6%  
Average risk-free interest rate   0.31%     0.29%     0.27%     1.36%     1.56%  
Expected forfeiture rate   —     —     —     —     —  
Expected dividend yield   —     —     —     —     —  
                               
FAIR VALUE ASSIGNED $ 109,000   $ 1,159,000   $ 75,000   $ 409,000   $ 100,000