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Convertible debentures (Tables)
 12 Months Ended
Oct. 31, 2019
Borrowings [abstract]  
Disclosure of detailed information about types of convertible debentures [Table Text Block]
                            Equity component of  
    Convertible debentures     Derivative liabilities     convertible debentures  
    2019     2018     2019     2018     2019     2018  
(a) $ 2,511,514   $ 2,419,877   $ 204,366   $ 151,918   $ 50,147   $ 70,283  
(b)   87,560     56,694     561,059     498,198     -     -  
  $ 2,599,074   $ 2,476,571   $ 765,425   $ 650,116   $ 50,147   $ 70,283  
 
(a) USD denominated debentures with equity components and CDN denominated debentures with embedded derivatives
 
 (b) USD denominated debentures with embedded derivatives
Disclosure of detailed information about convertible debentures outstanding in functional and foreign currency [Table Text Block]
    USD (equity component)     CDN (embedded derivative)  
    2019     2018     2019     2018  
                         
Loan Principal                        
Opening balance $ 931,000   $ 730,000   $ 2,234,294   $ 2,392,860  
Issuance during the yeara   -     231,000     165,266     1,035,800  
Repayment or conversion   -     (30,000 )   (128,543 )   (1,194,366 )
Outstanding at year-end $ 931,000   $ 931,000   $ 2,271,017   $ 2,234,294  
                         
Terms of Loan                        
Annual interest rate   12% - 24%     12% - 24%     12% - 24%     12% - 24%  
Effective annual interest rate   24% - 36%     36% - 37%     13% - 645%     23% - 398%  
Conversion price to common shares   $0.04 - $0.07     $0.04 - $0.21     $0.05 - $0.15     $0.05 - $0.15  
Remaining life (in months)   1 - 6     0 - 7     0 - 12     0 - 7  
                         
Consolidated Statements of Financial Position                        
Carrying value of loan principal $ 906,993   $ 894,838   $ 1,464,416   $ 1,428,616  
Interest payable   18,661     15,100     121,444     81,323  
Convertible debentures $ 925,654   $ 909,938   $ 1,585,860   $ 1,509,939  
Derivative liability $ -   $ -   $ 204,366   $ 151,918  
Equity component $ 50,147   $ 70,283   $ -   $ -  
                         
Consolidated Statements of Operations and Comprehensive Loss                        
Accretion expense $ 118,749   $ 110,469   $ 914,780   $ 1,652,007  
Interest expense $ 191,001   $ 168,052   $ 229,673   $ 284,908  
Gain on revaluation of derivative liability $ -   $ -   $ (846,401 ) $ (1,322,507 )
Loss on conversion of debentures $ -   $ -   $ -   $ 6,261  
Loss (gain) on extinguishment $ -   $ 2,792   $ (2,865 ) $ (401,983 )
                         
Consolidated Statements of Changes in Equity                        
Amount of principal converted to common shares $ -   $ -   $ -   $ 19,023  
Amount of interest converted to common shares $ -   $ -   $ -   $ 60,634  
Number of common shares issued on conversion of convertible debentures   -     -     -     770,962  
                         
Consolidated Statements of Cash Flows                        
Amount of principal repaid in cash $ -   $ 30,000   $ 96,598   $ 632,080  
Amount of interest repaid in cash $ 187,440   $ 161,424   $ 159,801   $ 161,506  
Disclosure of detailed information about convertible debentures outstanding with embedded derivatives subject to conversion price [Table Text Block]
      (i)           (ii)      
    2019     2018     2019     2018  
Loan Principal                        
Opening balance $ 213,600   $ -   $ 101,250   $ -  
Issuance during the year   563,600     278,600     307,250     142,750  
Conversion   (397,600 )   (65,000 )   (287,500 )   (41,500 )
Repayment   (75,600 )   -     -     -  
Outstanding at year-end $ 304,000   $ 213,600   $ 121,000   $ 101,250  
                         
Terms of Loan                        
Annual interest rate   4%     12%     10%     10%  
Effective annual interest rate   139% - 5044%     4380% - 4932%     4338% - 5368%     3873% - 5658%  
Conversion price to common shares   (i)     (i)     (ii)     (ii)  
Remaining life (in months)   6 - 11     4 - 12     3 - 12     6 - 8  
                         
Consolidated Statements of Financial Position                        
Carrying value of loan principal $ 39,993   $ 772   $ 23,429   $ 262  
Interest payable   10,953     12,973     13,185     4,238  
Convertible debentures $ 50,946   $ 13,745   $ 36,614   $ 4,500  
Derivative liability $ 370,759   $ 190,274   $ 190,300   $ 89,328  
                         
Consolidated Statements of Operations and Comprehensive Loss                        
Accretion expense $ 57,111   $ 2,496   $ 165,753   $ 264  
Interest expense $ 27,053   $ 11,769   $ 21,916   $ 4,670  
Loss on revaluation of derivative liability $ 196,842   $ 8,690   $ 294,673   $ 16,332  
Loss on conversion of debentures $ 49,738   $ 3,652   $ 52,181   $ 10,513  
Loss on extinguishment $ 2,219   $ -   $ -   $ -  
                         
Consolidated Statements of Changes in Equity                        
Amount of principal converted to common shares $ 397,600   $ 65,000   $ 287,500   $ 41,500  
Amount of interest converted to common shares $ 23,100   $ -   $ 21,969   $ 6,400  
Number of common shares issued on conversion of convertible debentures   29,106,847     2,456,707     33,421,726     982,921  
                      -  
Consolidated Statements of Cash Flow                        
Amount of principal repaid in cash $ 75,600   $ -   $ -   $ -  
Amount of interest repaid in cash $ 5,973   $ -   $ -   $ -  
 

(i) Conversion price defined as 75% multiplied by average of lowest 3 closing stock prices for the 10 trading days prior to conversion date.

(ii) Conversion price defined as 75% multiplied by lowest stock price for the 20 trading days prior to conversion date.

Convertible debentures outstanding as at October 31:

      (iii)           (iv)      
    2019     2018     2019     2018  
Loan Principal                        
Opening balance $ -   $ 100,200   $ 308,000   $ 343,000  
Issuance during the year   -     175,800     -     308,000  
Conversion   -     (276,000 )   (308,000 )   (343,000 )
Outstanding at year-end $ -   $ -   $ -   $ 308,000  
                         
Terms of Loan                        
Annual interest rate   n/a     12%     5%     5%  
Effective annual interest rate   n/a     264% - 6002%     5234%     160% - 5242%  
Conversion price to common shares   (iii)     (iii)     (iv)     (iv)  
Remaining life (in months)   n/a     n/a     n/a     1 - 5  
                         
Consolidated Statements of Financial Position                        
Carrying value of loan principal $ -   $ -   $ -   $ 26,755  
Interest payable   -     -     -     11,694  
Convertible debentures $ -   $ -   $ -   $ 38,449  
Derivative liability $ -   $ -   $ -   $ 218,596  
                         
Consolidated Statements of Operations and Comprehensive Loss                        
Accretion expense $ -   $ 61,453   $ 261,042   $ 212,655  
Interest expense $ -   $ 14,816   $ 22,443   $ 20,563  
Loss (gain) on revaluation of derivative liability $ -   $ 19,375   $ 11,451   $ 183,392  
Loss on conversion of debentures $ -   $ 43,426   $ -   $ -  
Loss on extinguishment $ -   $ -   $ -   $ -  
                         
Consolidated Statements of Changes in Equity                        
Amount of principal converted to common shares $ -   $ 276,000   $ 308,000   $ 343,000  
Amount of interest converted to common shares $ -   $ 10,145   $ 18,339   $ 12,554  
                         
Number of common shares issued on conversion of convertible debentures   -     6,076,094     19,510,390     5,934,267  

(iii) Conversion price defined as 80% multiplied by lowest 3 closing stock prices for the 10 trading days prior to conversion date.

(iv) Conversion price defined as 75% multiplied by lowest stock price for the 15 trading days prior to conversion date.
Disclosure of detailed information about assumptions used to determine fair value of derivative liabilities [Table Text Block]

 

2019

  

2018

Share price

$0.02

  

$0.03

Exercise price

$0.01 - $0.11

  

$0.02 - $0.11

Volatility factor (based on historical volatility)

173% - 321%

  

168% - 297%

Risk free interest rate

1.67% - 1.69%

  

1.74% - 2.22%

Expected life of conversion features (in months)

0 - 12

  

0 - 12

Expected dividend yield

0%

  

0%

CDN to USD exchange rate (as applicable)

0.7582

  

0.7609

Call value

$0.00 - $0.02

  

$0.00 - $0.02