Micromem (MMTIF) 20-F 28 Feb 20 2019 FY Annual report (foreign) Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Oct. 31, 2019shares
Document and Entity Information [Abstract]
Entity Registrant Name	MICROMEM TECHNOLOGIES INC
Entity Central Index Key	0001085921
Document Type	20-F
Amendment Flag	false
Document Period End Date	Oct. 31, 2019
Current Fiscal Year End Date	--10-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding	346,952,721
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well Known Seasoned Issuer	No
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Emerging Growth Company	false
Entity Shell Company	false

Consolidated Statements of Fina

Consolidated Statements of Financial Position - USD ($)	Oct. 31, 2019	Oct. 31, 2018
Current
Cash	$ 46,056	$ 206,832
Development costs receivable		81,841
Prepaid expenses and other receivables	14,751	16,731
Total current assets	60,807	305,404
Property and equipment	2,677	9,228
Patents	20,000	396,105
Total assets	83,484	710,737
Current
Trade payables and other liabilities	997,632	1,007,220
Convertible debentures	2,599,074	2,476,571
Derivative liabilities	765,425	650,116
Total liabilities	4,362,131	4,133,907
Shareholders' Deficiency
Share capital	84,153,696	82,282,903
Contributed surplus	27,757,639	27,630,909
Equity component of convertible debentures	50,147	70,283
Accumulated deficit	(116,240,129)	(113,407,265)
Total shareholders' deficiency	(4,278,647)	(3,423,170)
Total liabilities and shareholders' deficiency	$ 83,484	$ 710,737

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Loss - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Operating expenses
General and administration	$ 197,208	$ 305,338	$ 305,421
Professional, other fees and salaries	441,981	747,280	1,433,113
Stock-based compensation		140,612	442,206
Development expense (recovery)	(41,546)	(130,069)	147,008
Travel and entertainment	52,568	101,496	118,261
Amortization of property and equipment	3,175	3,922	3,992
Amortization of patents	152,962	156,960	133,785
Impairment of patents	223,143
Foreign exchange loss (gain)	(40,548)	(117,779)	343,210
Total operating expenses	988,943	1,207,760	2,926,996
Other expenses
Accretion expense	1,517,436	2,039,344	1,358,101
Interest expense	496,172	504,778	666,245
Financing costs	72,476	40,414
Gain on revaluation of derivative liabilities	(343,436)	(1,094,718)	(1,614,822)
Loss on conversion of convertible debentures	101,919	63,852	1,009,680
Gain on extinguishment of convertible debentures	(646)	(399,191)
Total other expenses	1,843,921	1,154,479	1,419,204
Loss before income tax provision	(2,832,864)	(2,362,239)	(4,346,200)
Income tax provision	0	0	0
Net loss and comprehensive loss	$ (2,832,864)	$ (2,362,239)	$ (4,346,200)
Weighted average number of outstanding shares, basic and diluted (in shares)	288,398,051	237,242,674	207,131,781
Basic and diluted loss per share (in dollars per share)	$ (0.01)	$ (0.01)	$ (0.02)

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - USD ($)	Share capital [Member]	Contributed surplus [Member]	Equity component of convertible debentures [Member]	Accumulated deficit [Member]	Total
Beginning Balance at Oct. 31, 2016	$ 75,855,139	$ 26,918,470	$ 23,075	$ (106,698,826)	$ (3,902,142)
Beginning Balance (Shares) at Oct. 31, 2016					204,388,569
Private placements of shares for cash	719,403				$ 719,403
Private placements of shares for cash (Shares)					3,873,223
Shares issued on settlement of accounts payable	107,708				$ 107,708
Shares issued on settlement of accounts payable (Shares)					547,643
Stock-based compensation		442,206			$ 442,206
Shares issued as settlement of wages	21,909				$ 21,909
Shares issued as settlement of wages (Shares)					132,381
Convertible debentures converted into common shares	2,536,963				$ 2,536,963
Convertible debentures converted into common shares (shares)					20,370,895
Reallocation from derivative liability for conversion	20,970				$ 20,970
Treasury shares cancelled (shares)					(750,000)
Loss on conversion of convertible debentures	936,102		38,975		$ 975,077
Financing costs converted into common shares
Net loss				(4,346,200)	(4,346,200)
Ending Balance at Oct. 31, 2017	80,198,194	27,360,676	62,050	(111,045,026)	$ (3,424,106)
Ending Balance (Shares) at Oct. 31, 2017					228,562,711
Private placements of shares for cash	866,200				$ 866,200
Private placements of shares for cash (Shares)					14,739,272
Shares issued on settlement of accounts payable	13,379				$ 13,379
Shares issued on settlement of accounts payable (Shares)					79,765
Stock-based compensation		140,612			$ 140,612
Convertible debentures converted into common shares	1,205,130				$ 1,205,130
Convertible debentures converted into common shares (shares)					16,220,951
Expiry of convertible debenture conversion option		129,621	(129,621)
Financing costs converted into common shares
Renewal of convertible debentures			137,854		137,854
Net loss				(2,362,239)	(2,362,239)
Ending Balance at Oct. 31, 2018	82,282,903	27,630,909	70,283	(113,407,265)	$ (3,423,170)
Ending Balance (Shares) at Oct. 31, 2018					259,602,699
Private placements of shares for cash	212,968				$ 212,968
Private placements of shares for cash (Shares)					4,961,059
Convertible debentures converted into common shares	1,636,825				$ 1,636,825
Convertible debentures converted into common shares (shares)					82,038,963
Expiry of convertible debenture conversion option		126,730	(126,730)
Financing costs converted into common shares	21,000				$ 21,000
Financing costs converted into common shares (Shares)					350,000
Renewal of convertible debentures			106,594		$ 106,594
Net loss				(2,832,864)	(2,832,864)
Ending Balance at Oct. 31, 2019	$ 84,153,696	$ 27,757,639	$ 50,147	$ (116,240,129)	$ (4,278,647)
Ending Balance (Shares) at Oct. 31, 2019					346,952,721

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Operating activities
Net loss	$ (2,832,864)	$ (2,362,239)	$ (4,346,200)
Items not affecting cash:
Stock-based compensation		140,612	442,206
Amortization of property and equipment	3,175	3,922	3,992
Amortization of patents	152,962	156,960	133,785
Impairment of patents	223,143
Bad debt expense		10,000
Accretion expense	1,517,436	2,039,344	1,358,101
Convertible debenture interest converted	63,409	47,435	0
Accrued interest on convertible debentures	164,243	125,328	666,245
Shares issued for financing costs	21,000
Gain on revaluation of derivative liabilities	(343,436)	(1,094,718)	(1,614,822)
Loss on conversion of convertible debentures	101,919	63,852	1,009,680
Gain on extinguishment of convertible debentures	(646)	(399,191)
Loss on disposal of property and equipment	5,000	220	983
Foreign exchange gain	(136,606)	(87,033)
Adjustments for increase (decrease) in other operating payables	(1,061,265)	(1,355,508)	(2,346,030)
Net changes in non-cash working capital:
Decrease (increase) in development costs receivable	81,841	324,016	(415,857)
Decrease (increase) in prepaid expenses and other assets	1,980	33,582	(16,986)
Increase (decrease) in trade payables and other liabilities	(4,993)	(341,399)	723,631
Cash flows used in operating activities	(982,437)	(1,339,309)	(2,055,242)
Investing activities
Purchase of property and equipment		(3,548)	(3,809)
Patents		(121,603)	(161,647)
Cash flows used in investing activities		(125,151)	(165,456)
Financing activities
Private placements of shares for cash	212,968	866,200	719,403
Proceeds from issuance of convertible debentures	780,891	1,457,983	1,788,974
Repayments of convertible debentures	(172,198)	(662,080)	(581,618)
Repayments from related parties			15,000
Cash flows provided by financing activities	821,661	1,662,103	1,941,759
Net change in cash	(160,776)	197,643	(278,939)
Cash - beginning of year	206,832	9,189	288,128
Cash - end of year	46,056	206,832	9,189
Supplemental cash flow information
Interest paid (classified in operating activities)	353,214	322,930	321,700
Income taxes paid	0	0	0
Shares issued on settlement of convertible debentures	$ 1,636,825	1,205,130	2,536,963
Shares issued on settlement of accounts payable		$ 13,379	107,708
Shares issued on settlement of wages			$ 21,909

Reporting entity and nature of

Reporting entity and nature of business	12 Months Ended
	Oct. 31, 2019
Reporting Entity And Nature Of Business [Abstract]
Reporting entity and nature of business [Text Block]	1. Reporting entity and nature of business Micromem Technologies Inc. ("Micromem" or the "Company") is incorporated under the laws of the Province of Ontario, Canada. Micromem is a publicly traded company with its head office located at 121 Richmond Street West, Suite 304, Toronto, Ontario, Canada. The Company's common shares are currently listed on the Canadian Securities Exchange under the trading symbol "MRM" and on the Over the Counter Venture Market under the trading symbol "MMTIF". The Company develops, based upon proprietary technology, customized sensor applications for companies (referred to as "development partners") operating internationally in various industry segments. The Company has not generated commercial revenues through October 31, 2019 and is devoting substantially all its efforts to securing commercial revenue opportunities.

Going concern

Going concern	12 Months Ended
	Oct. 31, 2019
Going Concern [Abstract]
Going concern [Text Block]	2. Going concern These consolidated financial statements have been prepared with the assumption that the Company will be able to realize its assets and discharge its liabilities in the normal course of business for the foreseeable future. There are material uncertainties related to conditions and events that cast significant doubt about the Company's ability to continue as a going concern and ultimately on the appropriateness of the use of the accounting principles applicable to a going concern. During the year ended October 31, 2019, the Company reported a net loss and comprehensive loss of $2,832,864 (2018 - $2,362,239; 2017 - $4,346,200) and negative cash flow from operations of $982,437 (2018 - $1,339,309; 2017 - $2,055,242). The Company's working capital deficiency as at October 31, 2019 is $4,301,324 (2018 – $3,828,503). The Company's success depends on the profitable commercialization of its proprietary sensor technology. There is no assurance that the Company will be successful in the profitable commercialization of its technology. Based upon its current operating and financial plans, management of the Company believes that it will have sufficient access to financial resources to fund the Company's planned operations through fiscal 2020; however, the ability of the Company to continue as a going concern is dependent upon its ability to secure additional financing and/or profitably commercialize its technology. These consolidated financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classifications of liabilities that may result from the possible inability of the Company to continue as a going concern. If the going concern assumption were not appropriate for these consolidated financial statements then adjustments would be necessary to the carrying value of assets and liabilities, the reported expenses and the statement of financial position classifications used; in such cases, these adjustments would be material.

Basis of presentation

Basis of presentation	12 Months Ended
	Oct. 31, 2019
Basis Of Preparation Of Financial Statements [Abstract]
Basis of presentation [Text Block]	3. Basis of presentation These consolidated financial statements have been prepared in accordance with International Financial Reporting Standards ("IFRS") as issued by the International Accounting Standards Board ("IASB") and interpretations issued by the IFRS Interpretations Committee ("IFRIC"). The Company applied, as of November 1, 2018, International Financial Reporting Standard ("IFRS") 9 Financial instruments. The nature and effect of those changes are disclosed in Note 5. The Company has not early adopted any other standard, interpretation or amendment that has been issued but is not yet effective. These consolidated financial statements were authorized for issuance and release by the Company's Board of Directors on February 24, 2020. (a) These consolidated financial statements include the accounts of Micromem Technologies Inc. and its subsidiaries. All intercompany transactions and balances have been eliminated upon consolidation. The Company applies the acquisition method to account for business combinations. Acquisition-related costs are expensed as incurred. The Company's wholly-owned subsidiaries include: (i) (ii) (iii) Inactive subsidiaries Domiciled in Memtech International Inc. Bahamas Memtech International (USA) Inc., Pageant Technologies (USA) Inc. United States Pageant Technologies Inc., Micromem Holdings (Barbados) Inc. Barbados These consolidated financial statements have been prepared on the historical cost basis, except for financial instruments designated at fair value through profit and loss which are measured at their fair value. (c) These consolidated financial statements are presented in United States dollars ("USD"), which is the functional currency of the Company and all of its subsidiaries. (d) The preparation of these consolidated financial statements in conformity with IFRSs requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. These estimates are reviewed periodically and adjustments are made as appropriate in the reporting period they become known. Items for which actual results may differ materially from these estimates are described in the following section. (i) The Company makes estimates and utilizes assumptions in determining the fair value for stock options and derivative liabilities based on the application of the Black-Scholes option pricing model or the binomial option pricing model, depending on the circumstances. These pricing models require management to make various assumptions and estimates that are susceptible to uncertainty, including the volatility of the share price, expected dividend yield, expected term, expected risk-free interest rate, and exercise price in the binomial option pricing model. (ii) Long-lived assets consist of property and equipment and patents. Amortization is dependent upon estimates of useful lives and impairment is dependent upon estimates of recoverable amounts. These are determined through the exercise of judgment and are dependent upon estimates that take into account factors such as economic and market conditions, frequency of use, anticipated changes in laws, and technological improvements. (iii) Income taxes and tax exposures recognized in the consolidated financial statements reflect management's best estimate of the outcome based on facts known at the reporting date. When the Company anticipates a future income tax payment based on its estimates, it recognizes a liability. The difference between the expected amount and the final tax outcome has an impact on current and deferred taxes when the Company becomes aware of this difference. When the Company incurs losses for income tax purposes, it assesses the probability of taxable income being available in the future, based on budgeted forecasts. These forecasts are adjusted for certain non-taxable income and expenses and specific rules on the use of unused credits and tax losses. When the forecasts indicate that sufficient future taxable income will be available to deduct the temporary differences, a deferred tax asset is recognized for all deductible temporary differences. (iv) The Company applies judgment in assessing whether material uncertainties exist that would cause doubt as to the whether the Company could continue as a going concern. (v) Determining an allowance for expected credit losses ("ECLs") for all debt financial assets not held at fair value through profit or loss requires management to make assumptions about the historical patterns for the probability of default, the timing of collection and the amount of incurred credit losses, which are adjusted based on management's judgment about whether economic conditions and credit terms are such that actual losses may be higher or lower than historical patterns suggest.

Summary of significant accounti

Summary of significant accounting policies	12 Months Ended
	Oct. 31, 2019
Summary Of Significant Accounting Policies [Abstract]
Summary of significant accounting policies [Text Block]	4. Summary of significant accounting policies The principal accounting policies applied to the preparation of these consolidated financial statements are set out below: (a) These consolidated financial statements are presented in USD, which is the functional currency of the Company and all of its subsidiaries. At each reporting date, foreign currency denominated monetary assets and liabilities are translated at year-end exchange rates. Non- monetary assets and liabilities that are measured in terms of historical cost in a foreign currency are translated using the exchange rate at the date of the transaction. Income and expenses, and cash flows of foreign operations, are translated into USD using annual average exchange rates. Exchange differences arising from operating transactions are recorded in operating profit or loss for the period; exchange differences related to financing transactions are recognized in finance income or directly in equity. (b) The Company aggregates similar financial instruments into classes based on their nature and characteristics. All financial assets except those classified as fair value through profit or loss are reviewed at each reporting date to determine whether there is any indication of impairment. Financial assets are considered to be impaired when there is objective evidence that the estimated future cash flows of the investment have been affected as a result of one or more events that occurred after the initial recognition. The Company's accounting policy for each class of financial instruments is as follows: (i) Financial instruments classified as fair value through profit or loss are reported at fair value at each reporting date, and any change in fair value is recognized in net income in the period during which the change occurs. In these consolidated financial statements, cash and derivative liabilities have been classified as fair value through profit or loss. (ii) Financial instruments classified as loans and receivables and other financial liabilities are carried at amortized cost using the effective interest method. Transaction costs are included in the amount initially recognized. In these consolidated financial statements, development costs receivable have been classified as loans and receivables. Trade payables and other liabilities and convertible debentures have been classified as other financial liabilities. (c) The Company issues convertible debentures used as bridge loans, which can be converted into common shares at the option of the holder, into a fixed number of shares for a fixed amount of consideration, or into a fixed number of shares for a variable amount of consideration, or into a variable number of shares. (i) Upon initial recognition, the Company determines whether the convertible debentures consist of liability and equity components, or if both components represent liabilities. For convertible debentures which provide conversion into a fixed number of shares, the liability component is recognized initially at the fair value of a similar, non-convertible liability. The equity component is recognized as the difference between the fair value of the instrument as a whole and the fair value of the liability component. Any directly attributable transaction costs are allocated to the liability and equity components in proportion to their initial carrying amounts. For convertible debentures which provide conversion into a variable number of shares or into a fixed number of shares for a variable amount of consideration, the conversion option is accounted for as an embedded derivative, which is separated from the host contract. Upon initial recognition, the derivative liability is valued at fair value using a Black Scholes or a binomial pricing model. The carrying amount of the convertible debenture is recognized as the difference between the fair value of the instrument as a whole and the fair value of the derivative liability. Any directly attributable transaction costs allocated to the derivative liability are expensed in the period . (ii) To the extent there are changes to the terms of outstanding convertible debentures, these changes may be recorded as a modification or an extinguishment. A substantial change in the terms of an existing financial liability is accounted for as an extinguishment of the original financial liability and the recognition of a new financial liability. The terms are substantially different if the discounted present value of the cash flows under the new terms is at least 10% different from the discounted present value of the remaining cash flows of the original financial liability. A modification of the original financial liability is accounted for as an adjustment to the effective interest rate. (d) Property and equipment are recorded at cost and are amortized over their estimated useful lives at the following annual rates and methods: Method Rate Computers Declining balance 30% Furniture and equipment Declining balance 30% (e) The Company follows the guidelines prescribed in IAS 36 with respect to the measurement for impairment of assets. The carrying amounts of property and equipment and patents are reviewed for impairment when events or changes in circumstances indicate that the carrying amounts may not be recoverable. When the carrying amount exceeds the estimated recoverable amount, the assets are written down to their recoverable amount. The recoverable amount of long-lived assets is the greater of fair value less costs to sell and value in use. Impairment losses are recognized in the consolidated statements of loss and comprehensive loss. (f) Research costs are expensed in the period incurred. Development costs are expensed as incurred unless they meet the criteria for capitalization. Expenditures during the development phase are capitalized if the Company can demonstrate each of the following criteria: (i) the technical feasibility of completing the asset so that it will be available for use or sale, (ii) its intention to complete the asset and use or sell it, (iii) its ability to use or sell the asset, (iv) how the asset will generate probable future economic benefits, (v) the availability of adequate technical, financial and other resources to complete the development and to use or sell the asset, and (vi) its ability to measure reliably the expenditure attributable to the asset during its development; otherwise, these costs are expensed as incurred. Payments received from development partners on projects are recorded to deferred development costs as a recovery of costs incurred. (g) Patents are recorded at cost and are amortized on a straight line basis over their estimated useful lives of 5 years. (h) Where equity instruments are granted to employees, they are recorded at the fair value of the equity instrument granted at the grant date. The grant date fair value is recognized in net income over the vesting period. Where equity instruments are granted to non-employees, they are recorded at the fair value of the goods or services received. When the value of goods or services received in exchange for the stock- based payment cannot be reliably estimated, the fair value is measured by use of a valuation model. The cost recognized for all equity- settled stock-based payments are reflected in contributed surplus, until the instruments are exercised. Upon exercise, shares are issued from treasury and the amount previously reflected in contributed surplus along with any proceeds paid upon exercise, are credited to share capital. (i) The Company accounts for its income taxes using the deferred tax assets and liabilities method. Deferred income tax assets and liabilities are determined based on the difference between the carrying amount and the tax basis of the assets and liabilities. Any change in the net amount of deferred income tax assets and liabilities is included in profit or loss or equity. Deferred income tax assets and liabilities are determined based on enacted or substantively enacted tax rates and laws which are expected to apply to taxable profit for the years in which the assets and liabilities will be recovered or settled. Deferred income tax assets are recognized when it is probable they will be realized. Deferred tax assets and liabilities are not discounted. (j) Provision for risks and expenses are recognized for probable outflows of resources that can be estimated and that result from present obligations resulting from past events. In the case where a potential obligation resulting from past events exists, but where occurrence of the outflow of resources is not probable or the estimate is not reliable, these contingencies are disclosed. Provisions, if any, are measured based on management's best estimates of outcomes on the basis of facts known at the reporting date. (k) Share capital is presented at the fair value of the shares issued. Costs related to the issuance of shares are reported in equity, net of tax, as a deduction from the issuance proceeds. (l) The Company presents basic and diluted earnings per share data for its common shares. Basic earnings per share is calculated by dividing the profit or loss attributable to common shareholders of the Company by the weighted average number of common shares outstanding during the period. Diluted earnings per share is determined by adjusting the profit or loss attributable to common shareholders and the weighted average number of common shares outstanding, for the effects of all potentially dilutive common shares, which comprise stock options and convertible debentures.

Adoption of new accounting pron

Adoption of new accounting pronouncements	12 Months Ended
	Oct. 31, 2019
Disclosure Of Adoption Of New Accounting Pronouncements [Abstract]
Adoption of new accounting pronouncements [Text Block]	5. Adoption of new accounting pronouncements (a) IFRS 2 clarifies how to account for certain types of share-based payment transactions. The amendments provide requirements on the accounting for the effects of vesting and non-vesting conditions on the measurement of cash-settled share-based payments, share-based payment transactions with a net settlement feature for withholding tax obligations, and a modification to the terms and conditions of a share-based payment that changes the classification of the transaction from cash-settled to equity-settled. The effective date of these amendments is for annual periods beginning January 1, 2018. The Company has adopted these amendments as of the effective date and has assessed no significant changes as a result of the adoption of these amendments. (b) IFRS 9 addresses classification and measurement of financial assets and replaces the multiple category and measurement models in IAS 39 for debt instruments with a new mixed measurement model having only two categories: amortized cost, and fair value through profit or loss. IFRS 9 also replaces the models for measuring equity instruments and such instruments are either recognized at fair value through profit or loss or at fair value through other comprehensive income ("FVOCI"). The effective date of this standard is for annual periods beginning January 1, 2018. The Company has adopted this new standard as of its effective date on a retrospective basis with the exception of financial assets that were derecognized at the date of initial application, November 1, 2018. There was no significant impact on these consolidated financial statements as a result of the adoption of this new standard. The new classification and measurement of the Company's financial assets are as follows: (i) This category includes financial assets that are held within a business model with the objective to hold the financial assets in order to collect contractual cash flows that meet the solely principal and interest ("SPPI") criterion. Financial assets classified in this category are measured at amortized cost using the effective interest method. (ii) This category includes derivative instruments as well as quoted equity instruments which the Company has not irrevocably elected, at initial recognition or initial application date, to classify at FVOCI. This category would also include debt instruments whose cash flow characteristics fail the SPPI criterion or are not held within a business model whose objective is either to collect contractual cash flows, or to both collect and sell contractual cash flows. Financial assets in this category are recorded at fair value with changes recognized in profit or loss. (iii) Critical to the determination of ECLs is the definition of default and the definition of a significant increase in credit risk. The definition of default is used in measuring the amount of ECLs and in the determination of whether the loss allowance is based on 12- month or lifetime ECLs. The Company considers the following as constituting an event of default: the borrower is past due more than 90 days on any material credit obligation, or the borrower is unlikely to pay its credit obligations to the Company in full. The Company monitors all financial assets that are subject to the impairment requirements to assess whether there has been a significant increase in credit risk since initial recognition. If there has been a significant increase in credit risk, the Company will measure the loss allowance based on lifetime rather than 12-month ECLs. In assessing whether the credit risk on a financial asset has increased significantly since initial recognition, the Company compares the risk of a default on the financial asset at the current reporting date against the risk of a default that was anticipated when the financial asset was first recognized, adjusted for remaining maturity of the instrument. The IFRS 9 requirements for the classification and measurement of financial liabilities are substantially unchanged from IAS 39 except for the removal of cost exception for derivative financial liabilities and changes in fair value as a result of entity's own credit risk now recognized in OCI. The Company has assessed no change in classification and measurement of financial liabilities. The assessment of the Company's business models was made as of the date of initial application, November 1, 2018, and then applied retrospectively to those financial instruments that were not derecognized before November 1, 2018. There was no adjustment to opening accumulated deficit resulting from the retrospective application of IFRS 9 to these financial instruments. IFRS 9 IAS 39 Financial assets Cash Amortized cost FVTPL Development costs receivable Amortized cost Amortized cost Other receivables Amortized cost Amortized cost Financial liabilities Trade payables and other liabilities Amortized cost Amortized cost Convertible debentures Amortized cost Amortized cost Derivative liabilities FVTPL FVTPL (c) IFRS 15 replaces the previous guidance on revenue. This standard specifies how and when revenue should be recognized based on a five- step model, which is applied to all contracts with customers. The revenue recognition model has changed from one based on the transfer of risks and rewards of ownership to one based on the transfer of control. IFRS 15 became effective for annual periods beginning on or after January 1, 2018, with early adoption permitted. The Company has adopted this new standard as of its effective date, using the full retrospective method of adoption. The Company does not have any current contracts with customers and has assessed no changes to current and prior reporting periods as a result of the adoption of this new standard.

New and revised standards and i

New and revised standards and interpretations issued but not yet effective	12 Months Ended
	Oct. 31, 2019
New And Revised Standards And Interpretations Issued But Not Yet Effective [Abstract]
New and revised standards and interpretations issued but not yet effective [Text Block]	6. New and revised standards and interpretations issued but not yet effective (a) IFRS 16 replaces the previous guidance on leases. This standard provides a single recognition and measurement model to be applied by lessees to leases, with required recognition of assets and liabilities for most leases. This standard is effective for annual periods beginning on or after January 1, 2019, with early adoption permitted. The Company will adopt this new standard as of its effective date. The Company has reviewed all of the Company's leasing arrangements as at October 31, 2019, in respect of the new lease standard. The standard will primarily affect the accounting of the Company's operating leases. At the reporting date, the Company has non-cancellable operating lease commitments of $132,165 CDN (Note 17). The Company intends to apply the simplified transition approach and will not restate comparative amounts to the year prior to adoption. The Company expects to approximately recognize net right-of-use assets of $74,307, current lease liabilities of $36,442, and non-current lease liabilities of $37,865. The Company does not expect any adjustment to opening accumulated deficit as at November 1, 2019. The Company expects that profit (loss) will decrease (increase) by approximately $4,374 for the year ended October 31, 2020 as a result of the application of IFRS 16. (b) IFRIC 23 clarifies the application of recognition and measurement requirements in IAS 12, Income Taxes, when there is uncertainty over income tax treatments. It specifically addresses whether an entity considers each tax treatment independently or collectively, the assumptions an entity makes about the examination of tax treatments by taxation authorities, how an entity determines taxable profit (tax loss), tax bases, unused tax losses, unused tax credits and tax rates, and how an entity considers changes in facts and circumstances. IFRIC 23 will be effective for the annual periods beginning on or after January 1, 2019, with earlier application permitted. The Company will adopt this interpretation as of its effective date. The Company has performed a preliminary analysis and has not assessed any significant impacts as a result of the adoption of this standard.

Development costs receivable

Development costs receivable	12 Months Ended
	Oct. 31, 2019
Development Costs Receivable [Abstract]
Development costs receivable [Text Block]	7. Development costs receivable The Company incurs development costs, and recovers from its development partners, a portion of the costs it has incurred in accordance with meeting milestones as stipulated in development contracts. The remaining balances outstanding from its development partners are recorded as development costs receivable on the statement of financial position.

Patents

Patents	12 Months Ended
	Oct. 31, 2019
Intangible assets and goodwill [abstract]
Patents [Text Block]	8. Patents November 1, October 31, October 31, 2017 Additions 2018 Additions Impairment 2019 Cost $ 782,828 $ 121,603 $ 904,431 $ - $ (223,143 ) $ 681,288 Accumulated amortization 351,366 156,960 508,326 152,962 - 661,288 Net book value $ 431,462 $ 396,105 $ 20,000 The Company holds several patents in the United States for its Multimodal Fluid Condition Sensor Platform. In prior years, the Company had negotiated with a major automotive company and a Tier 1 manufacturer for the development and commercial exploitation of this patented technology. In 2019, the Company discontinued provisional patent applications in international jurisdictions and determined that patents was impaired, its carrying amount was higher than its recoverable amount. The value in use, measured as the present value of the future cash flows expected to be derived from this asset class, has been estimated at a minimum of $20,000 at October 31, 2019. Accordingly, the Company has recorded an impairment reserve of $223,143 in the current fiscal year. The Company maintains that there remains significant potential value in its existing patents in terms of potential licensing agreements and royalty fees once it begins to exploit this asset class in the future.

Convertible debentures

Convertible debentures	12 Months Ended
	Oct. 31, 2019
Borrowings [abstract]
Convertible debentures [Text Block]	9. Convertible debentures The Company issues three types of convertible debentures: USD denominated convertible debentures with an equity component, Canadian dollar ("CDN") denominated convertible debentures with an embedded derivative due to variable consideration receivable upon conversion caused by foreign exchange, and USD denominated convertible debentures with an embedded derivative caused by variable conversion prices. 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) All loan principal amounts are expressed in original currency and all remaining dollar amounts expressed in USD. Convertible debentures outstanding as at October 31: 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 year - 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 (b) During the year ended October 31, 2019, the Company has incurred $72,476 (2018 - $40,414; 2017 - $nil) financing costs which primarily consist of early repayment premiums and admin fees relating to the convertible debentures, of which $21,000 (2018 - $nil; 2017 - $nil) was converted into common shares. Convertible debentures outstanding as at October 31: (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) (ii) (b) 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) (iv) (c) The fair value of the derivative liabilities is determined in accordance with the Black Scholes or binomial option-pricing models, depending on the circumstances. The underlying assumptions are as follows: 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 Volatility was estimated using the historical volatility of the Company's stock prices for common shares.

Share capital

Share capital	12 Months Ended
	Oct. 31, 2019
Disclosure of classes of share capital [abstract]
Share capital [Text block]	10. Share capital (a) The Company has two classes of shares as follows: (i) (ii) (b) (i) (ii) (iii)

Stock options

Stock options	12 Months Ended
	Oct. 31, 2019
Stock Options [Abstract]
Stock options [Text Block]	11. Stock options (a) The Company has a fixed stock option plan. Under the Company's stock option plan (the "Plan"), the Company may grant options for up to 18,840,000 shares of common stock to directors, officers, employees or consultants of the Company and its subsidiaries. The exercise price of each option is equal to or greater than the market price of the Company's shares on the date of grant unless otherwise permitted by applicable securities regulations. An option's maximum term under the Plan is 10 years. Stock options are fully vested upon issuance by the Company unless the Board of Directors stipulates otherwise by Directors' resolution. (b) Summary of changes Number of Weighted average options exercise price Outstanding at November 1, 2017 6,595,000 $ 0.37 Granted (i) 2,200,000 0.10 Expired (2,545,000 ) 0.34 Outstanding at October 31, 2018 6,250,000 $ 0.29 Expired (520,000 ) 0.34 Outstanding at October 31, 2019 5,730,000 $ 0.25 (i) 2018 Share price $0.09 Exercise price $0.10 Volatility factor (based on historical volatility) 95% Risk free interest rate 2.07% Expected life of conversion features (in months) 60 Expected dividend yield 0% Forfeiture rate 0% All options vest immediately upon issuance. There were no options issued to directors and officers during the year ended October 31, 2019 (2018 - 700,000; 2017 - 2,500,000) nor employees (2018 - 1,500,000; 2017 - 390,000). (c) Weighted average Remaining Number of contractual life Date of issue Expiry Date options Exercise price (years) June 4, 2015 June 4, 2020 300,000 $ 0.49 0.6 August 20, 2015 August 20, 2020 940,000 0.46 0.8 September 30, 2015 September 30, 2020 250,000 0.40 0.9 December 30, 2016 December 30, 2021 2,040,000 0.25 2.2 June 29, 2018 June 29, 2023 2,200,000 0.10 3.7 Outstanding and exercisable at October 31, 2019 5,730,000 $ 0.25 2.4

Loss per share

Loss per share	12 Months Ended
	Oct. 31, 2017
Earnings per share [abstract]
Loss per share [Text block]	12. Loss per share Basic and diluted loss per share are calculated using the following numerators and denominators: Numerator 2019 2018 2017 Loss attributable to common shareholders $ (2,832,864 ) $ (2,362,239 ) $ (4,346,200 ) Loss used in computation of basic and diluted loss per $ (2,832,864 ) $ (2,362,239 ) $ (4,346,200 ) Denominator 2019 2018 2017 Weighted average number of common shares for computation of basic and diluted loss per share 288,398,051 237,242,674 207,131,781 For the year ended October 31, 2019, 2018 and 2017, all stock options and conversion options were anti-dilutive and, therefore, are excluded from the calculation of diluted loss per share.

Income taxes

Income taxes	12 Months Ended
	Oct. 31, 2019
Major components of tax expense (income) [abstract]
Income taxes [Text Block]	13. Income taxes (a) Canada Other foreign Total 2026 $ 1,824,942 $ - $ 1,824,942 2027 1,534,633 - 1,534,633 2028 - - 2029 1,572,795 452,762 2,025,557 2030 2,122,111 1,880,897 4,003,008 2031 1,278,506 18,526 1,297,032 2032 1,416,917 325,793 1,742,710 2033 1,717,443 157,463 1,874,906 2034 2,484,557 679,089 3,163,646 2035 2,807,765 570,901 3,378,666 2036 3,295,071 441,019 3,736,090 2037 2,637,800 232,719 2,870,519 2038 1,783,250 - 1,783,250 2039 1,224,688 5,254 1,229,942 $ 25,700,478 $ 4,764,423 $ 30,464,901 (b) (c) 2019 2018 2017 Non-capital losses and other $ 8,073,286 $ 7,698,859 $ 7,277,434 Capital losses 175,090 175,090 350,180 Property, equipment, patents and deferred costs 1,668,632 1,567,228 1,598,394 $ 9,917,008 $ 9,441,177 $ 9,226,008 Deferred tax asset not recognized (9,917,008 ) (9,441,177 ) (9,226,008 ) $ - $ - $ - As at October 31, 2019 and 2018, the Company assessed that it is not probable that sufficient taxable profit will be available to use deferred income tax assets based on operating losses in prior years; therefore, there are no balances carried in the consolidated statements of financial position for such assets. (d) 2019 2018 2017 Loss before income taxes $ (2,832,864 ) $ (2,362,239 ) $ (4,346,200 ) Statutory tax rate 26.50% 26.50% 26.50% Expected income tax recovery $ (750,709 ) $ (625,993 ) $ (1,151,743 ) Non-deductible expenses and other items 270,610 182,056 413,499 Effect of exchange rate on deferred tax assets carried forward 4,269 225,846 424,023 Effect of higher tax rates in foreign jurisdiction - - 163,651 Change in deferred tax assets not recognized 475,830 218,091 150,570 $ - $ - $ -

Operating expenses

Operating expenses	12 Months Ended
	Oct. 31, 2019
Disclosure Of Operating Expenses [Abstract]
Operating expenses [Text Block]	14. Operating expenses (a) The components of general and administration expenses are as follows: 2019 2018 2017 General and administrative $ 56,720 $ 63,936 $ 98,187 Rent and occupancy 64,647 70,674 72,725 Office insurance 26,812 117,615 54,023 Investor relations, listing and filing fees 49,029 53,113 80,486 $ 197,208 $ 305,338 $ 305,421 (b) The components of professional, other fees and salaries expenses are as follows: 2019 2018 2017 Professional fees $ 157,354 $ 165,685 $ 224,139 Consulting fees 53,845 316,815 813,735 Salaries and benefits 230,782 264,780 395,239 $ 441,981 $ 747,280 $ 1,433,113

Supplemental cash flow informat

Supplemental cash flow information	12 Months Ended
	Oct. 31, 2019
Supplemental Cash Flow Informations Abstract
Supplemental cash flow information [Text Block]	15. Supplemental cash flow information The following provides a reconciliation of the cash flows from convertible debentures and derivative liabilities : 2019 2018 Balance - beginning of year $ 3,126,687 $ 2,978,751 Cash flows from financing activities: Proceeds from issuance of convertible debentures 780,891 1,457,983 Repayments of convertible debentures (172,198 ) (662,080 ) Non-cash changes: Increase in loan principal (i) 60,000 - Accretion expense 1,517,436 2,039,344 Accrued interest on convertible debentures 164,243 125,328 Gain on revaluation of derivative liabilities (343,436 ) (1,094,718 ) Gain on extinguishment of debt (646 ) (399,191 ) Convertible debentures converted into common shares (1,636,825 ) (1,093,842 ) Renewal of convertible debentures (106,594 ) (137,854 ) Foreign exchange gain (25,059 ) (87,034 ) Balance - end of year $ 3,364,499 $ 3,126,687 (i)

Key management compensation and

Key management compensation and related party transactions	12 Months Ended
	Oct. 31, 2019
Disclosure of transactions between related parties [abstract]
Key management compensation and related party transactions [Text Block]	16. Key management compensation and related party transactions The Company reports the following related party transactions: (a) Key management personnel are persons responsible for planning, directing and controlling activities of the Company, including officers and directors. Compensation paid or payable to these individuals (or companies controlled by such individuals) are summarized as follows: 2019 2018 2017 Professional, other fees, and salaries $ 4,684 $ 235,297 $ 667,724 Stock-based compensation - 44,740 382,531 $ 4,684 $ 280,037 $ 1,050,255 In 2019, these parties were not awarded any options (2018 - 700,000 options at an exercise price of $0.10; 2017 - 1,950,000 options at an exercise price of $0.25). (b) As at October 31, 2019 and 2018, the Company reports in trade payables and other liabilities a balance owing to the former President of MAST of $193,174 which represents alleged outstanding wages payable, see Note 18(b). As at October 31, 2019 and 2018, the Company reports $167,000 in trade payables and other liabilities owing to a company whose major shareholder is a director of the Company and who has also previously served as its Chief Technology Officer. This individual was elected as a director on February 19, 2014. The balance reported relates to alleged services provided in 2015; there have been no invoices submitted by this related party after October 31, 2015. (c) In May 2019, the CEO of the Company subscribed for a short-term loan of $15,000 CDN ($11,450 USD). At October 31, 2019, $10,000 CDN ($7,582 USD) in loan principal remains outstanding. In January 2018, the CEO of the Company subscribed for a convertible debenture of $150,000 CDN ($114,138 USD). At October 31, 2019, $52,319 CDN ($39,756 USD)(October 31, 2018 - $ 100,862 CDN, $76,713 USD) in loan principal remains outstanding.

Commitments

Commitments	12 Months Ended
	Oct. 31, 2019
Disclosure Of Commitments [Abstract]
Commitments [Text Block]	17. Commitments The Company has extended the lease for its premises through July 2022. The lease term is for 5 years and stipulates base monthly rental expenses of $4,005 CDN. Lease commitments are as follows: CDN Less than one year $ 48,060 Two to five years 84,105 $ 132,165

Contingencies

Contingencies	12 Months Ended
	Oct. 31, 2019
Disclosure Of Contingencies [Abstract]
Contingencies [Text Block]	18. Contingencies (a) (b)

Financial risk management

Financial risk management	12 Months Ended
	Oct. 31, 2019
Disclosure Of Financial Risk Management [Abstract]
Financial risk management [Text Block]	19. Financial risk management (a) Currency risk is the risk that the fair value of, or future cash flows from, the Company's financial instruments will significantly fluctuate due to changes in foreign exchange rates. The Company is exposed to currency risk to the extent that it incurs expenses and issues convertible debentures denominated in Canadian dollars. The Company manages currency risk by monitoring the Canadian position of these monetary financial instruments on a periodic basis throughout the course of the reporting period. As at October 31, 2019, balances that are denominated in CDN are as follows: 2019 2018 Cash (bank indebtedness) $ (3,188 ) $ 99,139 Trade payables and other liabilities $ 387,766 $ 318,172 Convertible debentures $ 2,010,940 $ 1,877,487 Derivative liabilities $ 207,161 $ 199,650 A 10% strengthening of the USD against the CDN would decrease accumulated deficit by $126,371 as at October 31, 2019 (2018 - decrease accumulated deficit by $158,836). A 10% weakening of the USD against the CDN would have had the opposite effect of the same magnitude. (b) Interest rate risk is the risk that the fair value of, or future cash flows from, the Company's financial instruments will significantly fluctuate due to changes in market interest rates. The Company is exposed to interest rate risk on its interest-bearing convertible debentures. This exposure is limited due to the short-term nature of the convertible debentures. (c) Liquidity risk is the risk that the Company will not be able to meet its financial obligations as they become due. The Company's policy is to review liquidity resources and ensure that sufficient funds are available to meet financial obligations as they become due. Further, the Company's management is responsible for ensuring funds exist and are readily accessible to support business opportunities as they arise. The Company's funding is provided in the form of capital raised through the issuance of shares on conversion of convertible debentures. All financial liabilities are due within 1 year as at October 31, 2019. (i) The following represents an analysis of the maturity of trade payables: 2019 2018 Less than 30 days past billing date $ 18,201 $ 87,356 31 to 90 days past billing date 13,259 12,837 Over 90 days past billing date 781,230 740,131 $ 812,690 $ 840,324 As at October 31, 2019, trade payables include $540,000 (2018 - $334,000) of invoices which the Company has disputed and/or are stale-dated. The Company does not anticipate that it will be required to discharge such amounts. (ii) The following represents an analysis of the maturity of the convertible debentures and derivative liabilities: 2019 2018 Convertible Derivative Convertible Derivative debentures liability debentures liability Less than three months $ 754,799 $ 75,528 $ 862,686 $ 90,142 Three to six months 1,168,349 71,326 1,346,315 382,309 Six to twelve months 675,926 618,571 267,570 177,665 $ 2,599,074 $ 765,425 $ 2,476,571 $ 650,116 (d) Credit risk is the risk of financial loss to the Company if a customer or counterparty to a financial instrument fails to meet its contractual obligations, and arises principally from the Company's cash, development costs receivable, and other receivables. The maximum exposure to credit risk is the carrying value of these financial assets, which amounted to $46,056 as at October 31, 2019 (2018 - $288,673). The Company reduces its credit risk by assessing the credit quality of counterparties, taking into account their financial position, past experience and other factors. The Company held cash of $46,056 at October 31, 2019 (2018 - $206,832). The cash is held with central banks and financial institution counterparties that are highly rated. The Company has assessed no significant change in credit risk and an insignificant loss allowance, which was not recognized in these consolidated financial statements.

Fair value hierarchy

Fair value hierarchy	12 Months Ended
	Oct. 31, 2019
Disclosure of fair value of plan assets [abstract]
Fair value hierarchy [Text Block]	20. Fair value hierarchy Assets and liabilities recorded at fair value in the consolidated statements of financial position are classified using a fair value hierarchy that reflects the significance of the inputs used in making the measurements. The fair value hierarchy has the following levels: Level 1 - valuation based on quoted prices (unadjusted) in active markets for identical assets and liabilities. There are no assets or liabilities in this category in these consolidated financial statements. Level 2 - valuation techniques based on inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. In these consolidated financial statements, derivative liabilities are included in this category. Level 3 - valuation techniques using the inputs for the asset or liability that are not based on observable market data. There are no assets or liabilities in this category in these consolidated financial statements. The Company's policy for determining when transfers between levels of fair value hierarchy occur is based on the date of the event or changes in circumstances that caused the transfer. During the year ended October 31, 2019 and 2018, there were no transfers between levels.

Capital risk management

Capital risk management	12 Months Ended
	Oct. 31, 2019
Disclosure of credit risk exposure [abstract]
Capital risk management [Text Block]	21. Capital risk management The Company's objectives when managing capital are to (i) maintain its ability to continue as a going concern in order to provide returns for shareholders and benefits for other stakeholders, (ii) ensure it has sufficient cash resources to further develop and market its technologies and (iii)

Subsequent events

Subsequent events	12 Months Ended
	Oct. 31, 2019
Disclosure of non-adjusting events after reporting period [abstract]
Subsequent events [Text Block]	22. Subsequent events Subsequent to October 31, 2019: (a) (b) (c) (d)

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Oct. 31, 2019
Summary Of Significant Accounting Policies [Abstract]
Foreign currency translation [Policy Text Block]	(a) These consolidated financial statements are presented in USD, which is the functional currency of the Company and all of its subsidiaries. At each reporting date, foreign currency denominated monetary assets and liabilities are translated at year-end exchange rates. Non- monetary assets and liabilities that are measured in terms of historical cost in a foreign currency are translated using the exchange rate at the date of the transaction. Income and expenses, and cash flows of foreign operations, are translated into USD using annual average exchange rates. Exchange differences arising from operating transactions are recorded in operating profit or loss for the period; exchange differences related to financing transactions are recognized in finance income or directly in equity.
Financial instruments [Policy Text Block]	(b) The Company aggregates similar financial instruments into classes based on their nature and characteristics. All financial assets except those classified as fair value through profit or loss are reviewed at each reporting date to determine whether there is any indication of impairment. Financial assets are considered to be impaired when there is objective evidence that the estimated future cash flows of the investment have been affected as a result of one or more events that occurred after the initial recognition. The Company's accounting policy for each class of financial instruments is as follows: (i) Financial instruments classified as fair value through profit or loss are reported at fair value at each reporting date, and any change in fair value is recognized in net income in the period during which the change occurs. In these consolidated financial statements, cash and derivative liabilities have been classified as fair value through profit or loss. (ii) Financial instruments classified as loans and receivables and other financial liabilities are carried at amortized cost using the effective interest method. Transaction costs are included in the amount initially recognized. In these consolidated financial statements, development costs receivable have been classified as loans and receivables. Trade payables and other liabilities and convertible debentures have been classified as other financial liabilities.
Convertible debentures and derivative liabilities [Policy Text Block]	Convertible debentures and derivative liabilities The Company issues convertible debentures used as bridge loans, which can be converted into common shares at the option of the holder, into a fixed number of shares for a fixed amount of consideration, or into a fixed number of shares for a variable amount of consideration, or into a variable number of shares. (i) Upon initial recognition, the Company determines whether the convertible debentures consist of liability and equity components, or if both components represent liabilities. For convertible debentures which provide conversion into a fixed number of shares, the liability component is recognized initially at the fair value of a similar, non-convertible liability. The equity component is recognized as the difference between the fair value of the instrument as a whole and the fair value of the liability component. Any directly attributable transaction costs are allocated to the liability and equity components in proportion to their initial carrying amounts. For convertible debentures which provide conversion into a variable number of shares or into a fixed number of shares for a variable amount of consideration, the conversion option is accounted for as an embedded derivative, which is separated from the host contract. Upon initial recognition, the derivative liability is valued at fair value using a Black Scholes or a binomial pricing model. The carrying amount of the convertible debenture is recognized as the difference between the fair value of the instrument as a whole and the fair value of the derivative liability. Any directly attributable transaction costs allocated to the derivative liability are expensed in the period incurred. (ii) To the extent there are changes to the terms of outstanding convertible debentures, these changes may be recorded as a modification or an extinguishment. A substantial change in the terms of an existing financial liability is accounted for as an extinguishment of the original financial liability and the recognition of a new financial liability. The terms are substantially different if the discounted present value of the cash flows under the new terms is at least 10% different from the discounted present value of the remaining cash flows of the original financial liability. A modification of the original financial liability is accounted for as an adjustment to the effective interest rate.
Property and equipment [Policy Text Block]	(d) Property and equipment are recorded at cost and are amortized over their estimated useful lives at the following annual rates and methods: Method Rate Computers Declining balance 30% Furniture and equipment Declining balance 30%
Impairment of long-lived assets [Policy Text Block]	(e) The Company follows the guidelines prescribed in IAS 36 with respect to the measurement for impairment of assets. The carrying amounts of property and equipment and patents are reviewed for impairment when events or changes in circumstances indicate that the carrying amounts may not be recoverable. When the carrying amount exceeds the estimated recoverable amount, the assets are written down to their recoverable amount. The recoverable amount of long-lived assets is the greater of fair value less costs to sell and value in use. Impairment losses are recognized in the consolidated statements of loss and comprehensive loss.
Development costs [Policy Text Block]	(f) Research costs are expensed in the period incurred. Development costs are expensed as incurred unless they meet the criteria for capitalization. Expenditures during the development phase are capitalized if the Company can demonstrate each of the following criteria: (i) the technical feasibility of completing the asset so that it will be available for use or sale, (ii) its intention to complete the asset and use or sell it, (iii) its ability to use or sell the asset, (iv) how the asset will generate probable future economic benefits, (v) the availability of adequate technical, financial and other resources to complete the development and to use or sell the asset, and (vi) its ability to measure reliably the expenditure attributable to the asset during its development; otherwise, these costs are expensed as incurred. Payments received from development partners on projects are recorded to deferred development costs as a recovery of costs incurred.
Patents [Policy Text Block]	(g) Patents are recorded at cost and are amortized on a straight line basis over their estimated useful lives of 5 years.
Stock-based compensation and other stock-based payments [Policy Text Block]	(h) Where equity instruments are granted to employees, they are recorded at the fair value of the equity instrument granted at the grant date. The grant date fair value is recognized in net income over the vesting period. Where equity instruments are granted to non-employees, they are recorded at the fair value of the goods or services received. When the value of goods or services received in exchange for the stock- based payment cannot be reliably estimated, the fair value is measured by use of a valuation model. The cost recognized for all equity- settled stock-based payments are reflected in contributed surplus, until the instruments are exercised. Upon exercise, shares are issued from treasury and the amount previously reflected in contributed surplus along with any proceeds paid upon exercise, are credited to share capital.
Income taxes [Policy Text Block]	(i) The Company accounts for its income taxes using the deferred tax assets and liabilities method. Deferred income tax assets and liabilities are determined based on the difference between the carrying amount and the tax basis of the assets and liabilities. Any change in the net amount of deferred income tax assets and liabilities is included in profit or loss or equity. Deferred income tax assets and liabilities are determined based on enacted or substantively enacted tax rates and laws which are expected to apply to taxable profit for the years in which the assets and liabilities will be recovered or settled. Deferred income tax assets are recognized when it is probable they will be realized. Deferred tax assets and liabilities are not discounted.
Provisions [Policy Text Block]	(j) Provision for risks and expenses are recognized for probable outflows of resources that can be estimated and that result from present obligations resulting from past events. In the case where a potential obligation resulting from past events exists, but where occurrence of the outflow of resources is not probable or the estimate is not reliable, these contingencies are disclosed. Provisions, if any, are measured based on management's best estimates of outcomes on the basis of facts known at the reporting date.
Share capital [Policy Text Block]	(k) Share capital is presented at the fair value of the shares issued. Costs related to the issuance of shares are reported in equity, net of tax, as a deduction from the issuance proceeds.
Earnings or loss per share [Policy Text Block]	(l) The Company presents basic and diluted earnings per share data for its common shares. Basic earnings per share is calculated by dividing the profit or loss attributable to common shareholders of the Company by the weighted average number of common shares outstanding during the period. Diluted earnings per share is determined by adjusting the profit or loss attributable to common shareholders and the weighted average number of common shares outstanding, for the effects of all potentially dilutive common shares, which comprise stock options and convertible debentures.
Adoption of new accounting pronouncements [Policy Text Block]	Adoption of new accounting pronouncements (a) IFRS 2 clarifies how to account for certain types of share-based payment transactions. The amendments provide requirements on the accounting for the effects of vesting and non-vesting conditions on the measurement of cash-settled share-based payments, share-based payment transactions with a net settlement feature for withholding tax obligations, and a modification to the terms and conditions of a share-based payment that changes the classification of the transaction from cash-settled to equity-settled. The effective date of these amendments is for annual periods beginning January 1, 2018. The Company has adopted these amendments as of the effective date and has assessed no significant changes as a result of the adoption of these amendments. (b) IFRS 9 addresses classification and measurement of financial assets and replaces the multiple category and measurement models in IAS 39 for debt instruments with a new mixed measurement model having only two categories: amortized cost, and fair value through profit or loss. IFRS 9 also replaces the models for measuring equity instruments and such instruments are either recognized at fair value through profit or loss or at fair value through other comprehensive income ("FVOCI"). The effective date of this standard is for annual periods beginning January 1, 2018. The Company has adopted this new standard as of its effective date on a retrospective basis with the exception of financial assets that were derecognized at the date of initial application, November 1, 2018. There was no significant impact on these consolidated financial statements as a result of the adoption of this new standard. The new classification and measurement of the Company's financial assets are as follows: (i) This category includes financial assets that are held within a business model with the objective to hold the financial assets in order to collect contractual cash flows that meet the solely principal and interest ("SPPI") criterion. Financial assets classified in this category are measured at amortized cost using the effective interest method. (ii) This category includes derivative instruments as well as quoted equity instruments which the Company has not irrevocably elected, at initial recognition or initial application date, to classify at FVOCI. This category would also include debt instruments whose cash flow characteristics fail the SPPI criterion or are not held within a business model whose objective is either to collect contractual cash flows, or to both collect and sell contractual cash flows. Financial assets in this category are recorded at fair value with changes recognized in profit or loss. (iii) Critical to the determination of ECLs is the definition of default and the definition of a significant increase in credit risk. The definition of default is used in measuring the amount of ECLs and in the determination of whether the loss allowance is based on 12- month or lifetime ECLs. The Company considers the following as constituting an event of default: the borrower is past due more than 90 days on any material credit obligation, or the borrower is unlikely to pay its credit obligations to the Company in full. The Company monitors all financial assets that are subject to the impairment requirements to assess whether there has been a significant increase in credit risk since initial recognition. If there has been a significant increase in credit risk, the Company will measure the loss allowance based on lifetime rather than 12-month ECLs. In assessing whether the credit risk on a financial asset has increased significantly since initial recognition, the Company compares the risk of a default on the financial asset at the current reporting date against the risk of a default that was anticipated when the financial asset was first recognized, adjusted for remaining maturity of the instrument. The IFRS 9 requirements for the classification and measurement of financial liabilities are substantially unchanged from IAS 39 except for the removal of cost exception for derivative financial liabilities and changes in fair value as a result of entity's own credit risk now recognized in OCI. The Company has assessed no change in classification and measurement of financial liabilities. The assessment of the Company's business models was made as of the date of initial application, November 1, 2018, and then applied retrospectively to those financial instruments that were not derecognized before November 1, 2018. There was no adjustment to opening accumulated deficit resulting from the retrospective application of IFRS 9 to these financial instruments. IFRS 9 IAS 39 Financial assets Cash Amortized cost FVTPL Development costs receivable Amortized cost Amortized cost Other receivables Amortized cost Amortized cost Financial liabilities Trade payables and other liabilities Amortized cost Amortized cost Convertible debentures Amortized cost Amortized cost Derivative liabilities FVTPL FVTPL (c) IFRS 15 replaces the previous guidance on revenue. This standard specifies how and when revenue should be recognized based on a five- step model, which is applied to all contracts with customers. The revenue recognition model has changed from one based on the transfer of risks and rewards of ownership to one based on the transfer of control. IFRS 15 became effective for annual periods beginning on or after January 1, 2018, with early adoption permitted. The Company has adopted this new standard as of its effective date, using the full retrospective method of adoption. The Company does not have any current contracts with customers and has assessed no changes to current and prior reporting periods as a result of the adoption of this new standard.

Summary of significant accoun_3

Summary of significant accounting policies (Tables)	12 Months Ended
	Oct. 31, 2019
Summary Of Significant Accounting Policies [Abstract]
Disclosure of detailed information about estimated useful life or depreciation rate [Table Text Block]	Method Rate Computers Declining balance 30% Furniture and equipment Declining balance 30%

Patents (Tables)

Patents (Tables)	12 Months Ended
	Oct. 31, 2019
Intangible assets and goodwill [abstract]
Disclosure of detailed information about patents [Table Text Block]	November 1, October 31, October 31, 2017 Additions 2018 Additions Impairment 2019 Cost $ 782,828 $ 121,603 $ 904,431 $ - $ (223,143 ) $ 681,288 Accumulated amortization 351,366 156,960 508,326 152,962 - 661,288 Net book value $ 431,462 $ 396,105 $ 20,000

Convertible debentures (Tables)

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) (b)
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) (ii) 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) (iv)
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

Stock options (Tables)

Stock options (Tables)	12 Months Ended
	Oct. 31, 2019
Notes to Financial Statements [Abstract]
Disclosure of number and weighted average exercise prices of share options [Table Text Block]	Number of Weighted average options exercise price Outstanding at November 1, 2017 6,595,000 $ 0.37 Granted (i) 2,200,000 0.10 Expired (2,545,000 ) 0.34 Outstanding at October 31, 2018 6,250,000 $ 0.29 Expired (520,000 ) 0.34 Outstanding at October 31, 2019 5,730,000 $ 0.25
Disclosure of detailed information about options, valuation assumptions [Table Text Block]	2018 Share price $0.09 Exercise price $0.10 Volatility factor (based on historical volatility) 95% Risk free interest rate 2.07% Expected life of conversion features (in months) 60 Expected dividend yield 0% Forfeiture rate 0%
Disclosure of number and weighted average remaining contractual life of outstanding share options [Table Text Block]	Weighted average Remaining Number of contractual life Date of issue Expiry Date options Exercise price (years) June 4, 2015 June 4, 2020 300,000 $ 0.49 0.6 August 20, 2015 August 20, 2020 940,000 0.46 0.8 September 30, 2015 September 30, 2020 250,000 0.40 0.9 December 30, 2016 December 30, 2021 2,040,000 0.25 2.2 June 29, 2018 June 29, 2023 2,200,000 0.10 3.7 Outstanding and exercisable at October 31, 2019 5,730,000 $ 0.25 2.4

Loss per share (Tables)

Loss per share (Tables)	12 Months Ended
	Oct. 31, 2017
Earnings per share [abstract]
Disclosure of detailed information about basic and diluted loss per share [Table Text Block]	Numerator 2019 2018 2017 Loss attributable to common shareholders $ (2,832,864 ) $ (2,362,239 ) $ (4,346,200 ) Loss used in computation of basic and diluted loss per $ (2,832,864 ) $ (2,362,239 ) $ (4,346,200 ) Denominator 2019 2018 2017 Weighted average number of common shares for computation of basic and diluted loss per share 288,398,051 237,242,674 207,131,781

Income taxes (Tables)

Income taxes (Tables)	12 Months Ended
	Oct. 31, 2019
Notes to Financial Statements [Abstract]
Disclosure of unused tax losses [Table Text Block]	Canada Other foreign Total 2026 $ 1,824,942 - $ 1,824,942 2027 1,534,633 - 1,534,633 2028 - - 2029 1,572,795 452,762 2,025,557 2030 2,122,111 1,880,897 4,003,008 2031 1,278,506 18,526 1,297,032 2032 1,416,917 325,793 1,742,710 2033 1,717,443 157,463 1,874,906 2034 2,484,557 679,089 3,163,646 2035 2,807,765 570,901 3,378,666 2036 3,295,071 441,019 3,736,090 2037 2,637,800 232,719 2,870,519 2038 1,783,250 - 1,783,250 2039 1,224,688 5,254 1,229,942 $ 25,700,478 $ 4,764,423 $ 30,464,901
Disclosure of deferred taxes [Table Text Block]	2019 2018 2017 Non-capital losses and other $ 8,073,286 $ 7,698,859 $ 7,277,434 Capital losses 175,090 175,090 350,180 Property, equipment, patents and deferred costs 1,668,632 1,567,228 1,598,394 $ 9,917,008 $ 9,441,177 $ 9,226,008 Deferred tax asset not recognized (9,917,008 ) (9,441,177 ) (9,226,008 ) $ - $ - $ -
Disclosure of detailed information about effective income tax expense recovery [Table Text Block]	2019 2018 2017 Loss before income taxes $ (2,832,864 ) $ (2,362,239 ) $ (4,346,200 ) Statutory tax rate 26.50% 26.50% 26.50% Expected income tax recovery $ (750,709 ) $ (625,993 ) $ (1,151,743 ) Non-deductible expenses and other items 270,610 182,056 413,499 Effect of exchange rate on deferred tax assets carried forward 4,269 225,846 424,023 Effect of higher tax rates in foreign jurisdiction - - 163,651 Change in deferred tax assets not recognized 475,830 218,091 150,570 $ - $ - $ -

Operating expenses (Tables)

Operating expenses (Tables)	12 Months Ended
	Oct. 31, 2019
Disclosure Of Operating Expenses [Abstract]
Disclosure of detailed information about components of general and administrative expenses [Table Text Block]	2019 2018 2017 General and administrative $ 56,720 $ 63,936 $ 98,187 Rent and occupancy 64,647 70,674 72,725 Office insurance 26,812 117,615 54,023 Investor relations, listing and filing fees 49,029 53,113 80,486 $ 197,208 $ 305,338 $ 305,421
Disclosure of detailed information about components of professional, other fees and salaries [Table Text Block]	2019 2018 2017 Professional fees $ 157,354 $ 165,685 $ 224,139 Consulting fees 53,845 316,815 813,735 Salaries and benefits 230,782 264,780 395,239 $ 441,981 $ 747,280 $ 1,433,113

Supplemental cash flow inform_2

Supplemental cash flow information (Tables)	12 Months Ended
	Oct. 31, 2019
Supplemental Cash Flow Informations Abstract
Disclosure of reconciliation of the cash flows [Table Text Block]	2019 2018 Balance - beginning of year $ 3,126,687 $ 2,978,751 Cash flows from financing activities: Proceeds from issuance of convertible debentures 780,891 1,457,983 Repayments of convertible debentures (172,198 ) (662,080 ) Non-cash changes: Increase in loan principal (i) 60,000 - Accretion expense 1,517,436 2,039,344 Accrued interest on convertible debentures 164,243 125,328 Gain on revaluation of derivative liabilities (343,436 ) (1,094,718 ) Gain on extinguishment of debt (646 ) (399,191 ) Convertible debentures converted into common shares (1,636,825 ) (1,093,842 ) Renewal of convertible debentures (106,594 ) (137,854 ) Foreign exchange gain (25,059 ) (87,034 ) Balance - end of year $ 3,364,499 $ 3,126,687

Key management compensation a_2

Key management compensation and related party transactions (Tables)	12 Months Ended
	Oct. 31, 2019
Disclosure of transactions between related parties [abstract]
Disclosure of key management compensation [Table Text Block]	2019 2018 2017 Professional, other fees, and salaries $ 4,684 $ 235,297 $ 667,724 Stock-based compensation - 44,740 382,531 $ 4,684 $ 280,037 $ 1,050,255

Commitments (Tables)

Commitments (Tables)	12 Months Ended
	Oct. 31, 2019
Disclosure Of Commitments [Abstract]
Disclosure of lease commitments [Table Text Block]	CDN Less than one year $ 48,060 Two to five years 84,105 $ 132,165

Financial risk management (Tabl

Financial risk management (Tables)	12 Months Ended
	Oct. 31, 2019
Disclosure Of Financial Risk Management [Abstract]
Disclosure of detailed information about consolidated financial statements [Table Text Block]	2019 2018 Cash (bank indebtedness) $ (3,188 ) $ 99,139 Trade payables and other liabilities $ 387,766 $ 318,172 Convertible debentures $ 2,010,940 $ 1,877,487 Derivative liabilities $ 207,161 $ 199,650
Disclosure of detailed information about analysis of the maturity of the trade payables [Table Text Block]	2019 2018 Less than 30 days past billing date $ 18,201 $ 87,356 31 to 90 days past billing date 13,259 12,837 Over 90 days past billing date 781,230 740,131 $ 812,690 $ 840,324
Disclosure of detailed information about analysis of the maturity of the convertible debentures and derivative liabilities [Table Text Block]	2019 2018 Convertible Derivative Convertible Derivative debentures liability debentures liability Less than three months $ 754,799 $ 75,528 $ 862,686 $ 90,142 Three to six months 1,168,349 71,326 1,346,315 382,309 Six to twelve months 675,926 618,571 267,570 177,665 $ 2,599,074 $ 765,425 $ 2,476,571 $ 650,116

Going concern (Narrative) (Deta

Going concern (Narrative) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Going Concern [Abstract]
Net loss and comprehensive loss	$ 2,832,864	$ 2,362,239	$ 4,346,200
Negative cash flow from operations	982,437	1,339,309	$ 2,055,242
Working capital deficit	$ 4,301,324	$ 3,828,503

Summary of significant accoun_4

Summary of significant accounting policies (Narrative) (Details)	12 Months Ended
	Oct. 31, 2019
Patents [Member]
Disclosure Of Summary Of Significant Accounting Policies [Line Items]
Useful lives or depreciation rates, property, plant and equipment	5 years

New and revised standards and_2

New and revised standards and interpretations issued but not yet effective (Narrative) (Details)	12 Months Ended
	Oct. 31, 2019USD ($)
New And Revised Standards And Interpretations Issued But Not Yet Effective [Abstract]
Non cancellable operating lease commitments	$ 132,165
Net right-of-use assets	74,307
Current lease liabilities	36,442
Non-current lease liabilities	37,865
Expected profit (loss) decrease (increase)	$ 4,374

Patents (Narrative) (Details)

Patents (Narrative) (Details) - USD ($)	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Intangible assets and goodwill [abstract]
Patents	$ 20,000	$ 396,105	$ 431,462
Impairment reserve	$ 223,143

Convertible debentures (Narrati

Convertible debentures (Narrative) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Convertible Debentures [Abstract]
Finance costs	$ 72,476	$ 40,414
Financing costs converted into common shares	$ 21,000

Share capital (Narrative) (Deta

Share capital (Narrative) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Disclosure of classes of share capital [line items]
Private placements of shares for cash	$ 212,968	$ 866,200	$ 719,403
Private placements of shares for cash (Shares)	4,961,059	14,739,272	3,873,223
Special Redeemable Voting Preference Shares [Member]
Disclosure of classes of share capital [line items]
Number of shares authorized	2,000,000

Stock options (Narrative) (Deta

Stock options (Narrative) (Details)	12 Months Ended
	Oct. 31, 2019shares	Oct. 31, 2018share	Oct. 31, 2017share
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options to be granted | shares	18,840,000
Stock options maximum term	10 years
Stock options granted		2,200,000
Directors and Officers [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options granted		700,000	2,500,000
Employees [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options granted		1,500,000	390,000

Income taxes (Narrative) (Detai

Income taxes (Narrative) (Details)	12 Months Ended
	Oct. 31, 2019USD ($)
Statements Line Items
Non-capital losses	$ 30,464,901
Approximations [Member]
Statements Line Items
Non-capital losses	30,500,000
Capital loss carry forwards	$ 1,300,000

Key management compensation a_3

Key management compensation and related party transactions (Narrative) (Details)	12 Months Ended
	Oct. 31, 2018USD ($)share	Oct. 31, 2017USD ($)share	Oct. 31, 2019USD ($)	Oct. 31, 2019CAD ($)	May 31, 2019USD ($)	May 31, 2019CAD ($)	Oct. 31, 2018CAD ($)	Jan. 31, 2018USD ($)	Jan. 31, 2018CAD ($)
Disclosure of transactions between related parties [line items]
Stock options granted | share	2,200,000
Exercise price, stock options granted	$ 0.10
Accounts payable and accrued liabilities	$ 1,007,220		$ 997,632
Key management personnel [Member]
Disclosure of transactions between related parties [line items]
Stock options granted | share	700,000	1,950,000
Exercise price, stock options granted	$ 0.10	$ 0.25
President of MAST [Member]
Disclosure of transactions between related parties [line items]
Accounts payable and accrued liabilities	193,174		193,174
Chief Technology officer [Member]
Disclosure of transactions between related parties [line items]
Accounts payable and accrued liabilities	167,000		167,000
Chief Executive Officer [Member] | Short-term loan [Member]
Disclosure of transactions between related parties [line items]
Payables to related parties			7,582	$ 10,000	$ 11,450	$ 15,000
Chief Executive Officer [Member] | Convertible debentures [Member]
Disclosure of transactions between related parties [line items]
Payables to related parties	$ 76,713		$ 39,756	$ 52,319			$ 100,862	$ 114,138	$ 150,000

Commitments (Narrative) (Detail

Commitments (Narrative) (Details) - Lease [Member]	12 Months Ended
	Oct. 31, 2019CAD ($)
Disclosure Of Commitments [Line Items]
Lease term	5 years
Rental expense, monthly	$ 4,005

Contingencies (Narrative) (Deta

Contingencies (Narrative) (Details) - Mr. Steven Van Fleet [Member] - USD ($)	Dec. 07, 2018	Oct. 07, 2018	Oct. 31, 2019
Disclosure Of Contingencies [Line Items]
Legal contingency, damages sought		$ 214,574
Accruals on counterclaims			$ 205,788
Contingencies [Member]
Disclosure Of Contingencies [Line Items]
Maximum damages counter claims	$ 2,750,000

Financial risk management (Narr

Financial risk management (Narrative) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis, variance, percentage	10.00%	10.00%
Value at risk	$ 126,371	$ 158,836
Cash	46,056	206,832
Liquidity risk [Member]
Disclosure of detailed information about financial instruments [line items]
Trade payables disputed or stale-dated	540,000	334,000
Credit risk [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk	46,056	288,673
Cash	$ 46,056	$ 206,832

Subsequent events (Narrative) (

Subsequent events (Narrative) (Details)	12 Months Ended
	Oct. 31, 2019USD ($)shares	Oct. 31, 2019CAD ($)shares	Oct. 31, 2018USD ($)	Oct. 31, 2017USD ($)
Disclosure of non-adjusting events after reporting period [line items]
Convertible debentures	$ 2,599,074		$ 2,476,571
Repayments of convertible debentures	172,198		662,080	$ 581,618
Proceeds from private placements	212,968		$ 866,200	$ 719,403
Subsequent Events [Member]
Disclosure of non-adjusting events after reporting period [line items]
Convertible debentures	411,891
Repayments of convertible debentures	80,000	$ 122,764
Convertible debentures, converted amount	$ 179,370
Shares issued on conversion of convertible debenture (Shares) | shares	15,927,765	15,927,765
Proceeds from private placements	$ 402,161
Shares issued for private placement | shares	10,008,491	10,008,491
Subsequent Events [Member] | Minimum [Member]
Disclosure of non-adjusting events after reporting period [line items]
Term of convertible debenture (in months)	6 months	6 months
Converible debentures extension term range	2 months	2 months
Subsequent Events [Member] | Maximum [Member]
Disclosure of non-adjusting events after reporting period [line items]
Term of convertible debenture (in months)	12 months	12 months
Converible debentures extension term range	6 months	6 months

Summary of significant accoun_5

Summary of significant accounting policies (Schedule of disclosure of disclosure of detailed information about estimated useful life or depreciation rate) (Details)	12 Months Ended
	Oct. 31, 2019
Computers [Member]
Statements Line Items
Useful lives or depreciation rates, property, plant and equipment	30%
Furniture and equipment [Member]
Statements Line Items
Useful lives or depreciation rates, property, plant and equipment	30%

Patents (Schedule of detailed i

Patents (Schedule of detailed information about patents) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Disclosure Of Information About Patents [Line Items]
Patents, beginning of period	$ 396,105	$ 431,462
Patents, end of period	20,000	396,105
Cost [Member]
Disclosure Of Information About Patents [Line Items]
Patents, beginning of period	904,431	782,828
Additions		121,603
Impairment	(223,143)
Patents, end of period	681,288	904,431
Accumulated amortization [Member]
Disclosure Of Information About Patents [Line Items]
Patents, beginning of period	508,326	351,366
Additions	152,962	156,960
Patents, end of period	$ 661,288	$ 508,326

Convertible debentures (Schedul

Convertible debentures (Schedule of detailed information about convertible debenture) (Details) - USD ($)	Oct. 31, 2019	Oct. 31, 2018
Convertible Debentures [Line Items]
Convertible debentures	$ 2,599,074	$ 2,476,571
Derivative liabilities	765,425	650,116
Equity component of convertible debentures	50,147	70,283
USD denominated debentures with equity components and CDN denominated debentures with embedded derivatives [Member]
Convertible Debentures [Line Items]
Convertible debentures	2,511,514	2,419,877
Derivative liabilities	204,366	151,918
Equity component of convertible debentures	50,147	70,283
USD denominated debentures with embedded derivatives [Member]
Convertible Debentures [Line Items]
Convertible debentures	87,560	56,694
Derivative liabilities	561,059	498,198
Equity component of convertible debentures	$ 0	$ 0

Convertible debentures (Sched_2

Convertible debentures (Schedule of detailed information about USD denominated debentures with equity components and CDN denominated debentures with embedded derivatives) (Details)	12 Months Ended
	Oct. 31, 2019USD ($)$ / sharesshares	Oct. 31, 2019CAD ($)shares	Oct. 31, 2018USD ($)$ / sharesshares	Oct. 31, 2018CAD ($)shares
Consolidated Statements of Financial Position
Convertible debentures	$ 2,599,074		$ 2,476,571
Derivative liability	765,425		650,116
Equity component	50,147		70,283
USD denominated debentures with equity components [Member]
Loan Principal
Opening balance	931,000		730,000
Issuance during the year	0		231,000
Conversion	0		(30,000)
Outstanding at year-end	931,000		931,000
Consolidated Statements of Financial Position
Carrying value of loan principal	906,993		894,838
Interest payable	18,661		15,100
Convertible debentures	925,654		909,938
Derivative liability	0		0
Equity component	50,147		70,283
Consolidated Statements of Operations and Comprehensive Loss
Accretion expense	118,749		110,469
Interest expense	191,001		168,052
Loss on revaluation of derivative liability	0		0
Loss on conversion of debentures	0		0
Loss (gain) on extinguishment	0		2,792
Consolidated Statements of Changes in Equity
Amount of principal converted to common shares	0		0
Amount of interest converted to common shares	$ 0		$ 0
Number of common shares issued on conversion of convertible debentures | shares	0	0	0	0
Consolidated Statements of Cash Flows
Amount of principal repaid in cash	$ 0		$ 30,000
Amount of interest repaid in cash	$ 187,440		$ 161,424
USD denominated debentures with equity components [Member] | Minimum [Member]
Terms of Loan
Annual interest rate	12.00%	12.00%	12.00%	12.00%
Effective annual interest rate	24.00%		36.00%
Conversion price to common shares | $ / shares	$ 0.04		$ 0.04
Remaining life (in months)	1 month	1 month	0 months	0 months
USD denominated debentures with equity components [Member] | Maximum [Member]
Terms of Loan
Annual interest rate	24.00%	24.00%	24.00%	24.00%
Effective annual interest rate	36.00%		37.00%
Conversion price to common shares | $ / shares	$ 0.07		$ 0.21
Remaining life (in months)	6 months	6 months	7 months	7 months
CDN denominated debentures with embedded derivatives [Member]
Loan Principal
Opening balance		$ 2,234,294		$ 2,392,860
Issuance during the year		165,266		1,035,800
Conversion		(128,543)		(1,194,366)
Outstanding at year-end		$ 2,271,017		$ 2,234,294
Consolidated Statements of Financial Position
Carrying value of loan principal	$ 1,464,416		$ 1,428,616
Interest payable	121,444		81,323
Convertible debentures	1,585,860		1,509,939
Derivative liability	204,366		151,918
Equity component	0		0
Consolidated Statements of Operations and Comprehensive Loss
Accretion expense	914,780		1,652,007
Interest expense	229,673		284,908
Loss on revaluation of derivative liability	(846,401)		(1,322,507)
Loss on conversion of debentures	0		6,261
Loss (gain) on extinguishment	(2,865)		(401,983)
Consolidated Statements of Changes in Equity
Amount of principal converted to common shares	0		19,023
Amount of interest converted to common shares	$ 0		$ 60,634
Number of common shares issued on conversion of convertible debentures | shares	0	0	770,962	770,962
Consolidated Statements of Cash Flows
Amount of principal repaid in cash	$ 96,598		$ 632,080
Amount of interest repaid in cash	$ 159,801		$ 161,506
CDN denominated debentures with embedded derivatives [Member] | Minimum [Member]
Terms of Loan
Annual interest rate	12.00%	12.00%	12.00%	12.00%
Effective annual interest rate	13.00%		23.00%
Conversion price to common shares | $ / shares	$ 0.05		$ 0.05
Remaining life (in months)	0 months	0 months	0 months	0 months
CDN denominated debentures with embedded derivatives [Member] | Maximum [Member]
Terms of Loan
Annual interest rate	24.00%	24.00%	24.00%	24.00%
Effective annual interest rate	645.00%		398.00%
Conversion price to common shares | $ / shares	$ 0.15		$ 0.15
Remaining life (in months)	12 months	12 months	7 months	7 months

Convertible debentures (Sched_3

Convertible debentures (Schedule of detailed information about USD denominated debentures with embedded derivatives) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Consolidated Statements of Financial Position
Convertible debentures	$ 2,599,074	$ 2,476,571
Derivative liabilities	765,425	650,116
USD denominated debentures with embedded derivatives [Member]
Consolidated Statements of Financial Position
Convertible debentures	87,560	56,694
Derivative liabilities	561,059	498,198
Conversion price defined as 75% multiplied by average of lowest 3 closing stock prices for the 10 trading days [Member] | USD denominated debentures with embedded derivatives [Member]
Loan Principal
Opening balance	213,600	0
Issuance during the year	563,600	278,600
Conversion	(397,600)	(65,000)
Repayment	(75,600)	0
Outstanding at year-end	$ 304,000	$ 213,600
Terms of Loan
Annual interest rate	4.00%	12.00%
Consolidated Statements of Financial Position
Carrying value of loan principal	$ 39,993	$ 772
Interest payable	10,953	12,973
Convertible debentures	50,946	13,745
Derivative liabilities	370,759	190,274
Consolidated Statements of Operations and Comprehensive Loss
Accretion expense	57,111	2,496
Interest expense	27,053	11,769
Loss on revaluation of derivative liability	196,842	8,690
Loss on conversion of debentures	49,738	3,652
Loss on extinguishment	2,219	0
Consolidated Statements of Changes in Equity
Amount of principal converted to common shares	397,600	65,000
Amount of interest converted to common shares	$ 23,100	$ 0
Number of common shares issued on conversion of convertible debentures	29,106,847	2,456,707
Consolidated Statements of Cash Flows
Short-term loan repayment	$ 75,600	$ 0
Amount of interest repaid in cash	$ 5,973	$ 0
Conversion price defined as 75% multiplied by average of lowest 3 closing stock prices for the 10 trading days [Member] | Minimum [Member] | USD denominated debentures with embedded derivatives [Member]
Terms of Loan
Effective annual interest rate	139.00%	4380.00%
Remaining life (in months)	6 months	4 months
Conversion price defined as 75% multiplied by average of lowest 3 closing stock prices for the 10 trading days [Member] | Maximum [Member] | USD denominated debentures with embedded derivatives [Member]
Terms of Loan
Effective annual interest rate	5044.00%	4932.00%
Remaining life (in months)	11 months	12 months
Conversion price defined as 75% multiplied by lowest stock price for the 20 trading days [Member] | USD denominated debentures with embedded derivatives [Member]
Loan Principal
Opening balance	$ 101,250	$ 0
Issuance during the year	307,250	142,750
Conversion	(287,500)	(41,500)
Repayment	0	0
Outstanding at year-end	$ 121,000	$ 101,250
Terms of Loan
Annual interest rate	10.00%	10.00%
Consolidated Statements of Financial Position
Carrying value of loan principal	$ 23,429	$ 262
Interest payable	13,185	4,238
Convertible debentures	36,614	4,500
Derivative liabilities	190,300	89,328
Consolidated Statements of Operations and Comprehensive Loss
Accretion expense	165,753	264
Interest expense	21,916	4,670
Loss on revaluation of derivative liability	294,673	16,332
Loss on conversion of debentures	52,181	10,513
Loss on extinguishment	0	0
Consolidated Statements of Changes in Equity
Amount of principal converted to common shares	287,500	41,500
Amount of interest converted to common shares	$ 21,969	$ 6,400
Number of common shares issued on conversion of convertible debentures	33,421,726	982,921
Consolidated Statements of Cash Flows
Short-term loan repayment	$ 0	$ 0
Amount of interest repaid in cash	$ 0	$ 0
Conversion price defined as 75% multiplied by lowest stock price for the 20 trading days [Member] | Minimum [Member] | USD denominated debentures with embedded derivatives [Member]
Terms of Loan
Effective annual interest rate	4338.00%	3873.00%
Remaining life (in months)	3 months	6 months
Conversion price defined as 75% multiplied by lowest stock price for the 20 trading days [Member] | Maximum [Member] | USD denominated debentures with embedded derivatives [Member]
Terms of Loan
Effective annual interest rate	5368.00%	5658.00%
Remaining life (in months)	12 months	8 months
Conversion price defined as 80% multiplied by lowest 3 closing stock prices for the 10 trading days [Member] | USD denominated debentures with embedded derivatives [Member]
Loan Principal
Opening balance	$ 0	$ 100,200
Issuance during the year	0	175,800
Conversion	0	(276,000)
Outstanding at year-end	0	$ 0
Terms of Loan
Annual interest rate		12.00%
Consolidated Statements of Financial Position
Carrying value of loan principal	0	$ 0
Interest payable	0	0
Convertible debentures	0	0
Derivative liabilities	0	0
Consolidated Statements of Operations and Comprehensive Loss
Accretion expense	0	61,453
Interest expense	0	14,816
Loss on revaluation of derivative liability	0	19,375
Loss on conversion of debentures	0	43,426
Loss on extinguishment	0	0
Consolidated Statements of Changes in Equity
Amount of principal converted to common shares	0	276,000
Amount of interest converted to common shares	$ 0	$ 10,145
Number of common shares issued on conversion of convertible debentures	0	6,076,094
Conversion price defined as 80% multiplied by lowest 3 closing stock prices for the 10 trading days [Member] | Minimum [Member] | USD denominated debentures with embedded derivatives [Member]
Terms of Loan
Effective annual interest rate		264.00%
Conversion price defined as 80% multiplied by lowest 3 closing stock prices for the 10 trading days [Member] | Maximum [Member] | USD denominated debentures with embedded derivatives [Member]
Terms of Loan
Effective annual interest rate		6002.00%
Conversion price defined as 75% multiplied by lowest stock price for the 15 trading days [Member] | USD denominated debentures with embedded derivatives [Member]
Loan Principal
Opening balance	$ 308,000	$ 343,000
Issuance during the year	0	308,000
Conversion	(308,000)	(343,000)
Outstanding at year-end	$ 0	$ 308,000
Terms of Loan
Annual interest rate	5.00%	5.00%
Effective annual interest rate	5234.00%
Consolidated Statements of Financial Position
Carrying value of loan principal	$ 0	$ 26,755
Interest payable	0	11,694
Convertible debentures	0	38,449
Derivative liabilities	0	218,596
Consolidated Statements of Operations and Comprehensive Loss
Accretion expense	261,042	212,655
Interest expense	22,443	20,563
Loss on revaluation of derivative liability	11,451	183,392
Loss on conversion of debentures	0	0
Loss on extinguishment	0	0
Consolidated Statements of Changes in Equity
Amount of principal converted to common shares	308,000	343,000
Amount of interest converted to common shares	$ 18,339	$ 12,554
Number of common shares issued on conversion of convertible debentures	19,510,390	5,934,267
Conversion price defined as 75% multiplied by lowest stock price for the 15 trading days [Member] | Minimum [Member] | USD denominated debentures with embedded derivatives [Member]
Terms of Loan
Effective annual interest rate		160.00%
Remaining life (in months)		1 month
Conversion price defined as 75% multiplied by lowest stock price for the 15 trading days [Member] | Maximum [Member] | USD denominated debentures with embedded derivatives [Member]
Terms of Loan
Effective annual interest rate		5242.00%
Remaining life (in months)		5 months

Convertible debentures (Sched_4

Convertible debentures (Schedule of detailed information about underlying assumptions) (Details) - Derivative liabilities [Member] - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Convertible Debentures [Line Items]
Share price	$ 0.02	$ 0.03
Expected dividend yield	0.00%	0.00%
CDN to USD exchange rate (as applicable)	$ 0.7582	$ 0.7609
Minimum [Member]
Convertible Debentures [Line Items]
Exercise price	$ 0.01	$ 0.02
Volatility factor (based on historical volatility)	173.00%	168.00%
Risk free interest rate	1.67%	1.74%
Expected life of conversion features (in months)	0 months	0 months
Call value	$ 0	$ 0
Maximum [Member]
Convertible Debentures [Line Items]
Exercise price	$ 0.11	$ 0.11
Volatility factor (based on historical volatility)	321.00%	297.00%
Risk free interest rate	1.69%	2.22%
Expected life of conversion features (in months)	12 months	12 months
Call value	$ 0.02	$ 0.02

Stock options (Schedule of deta

Stock options (Schedule of detailed information about number and weighted average exercise prices of share options) (Details)	12 Months Ended
	Oct. 31, 2019USD ($)share	Oct. 31, 2018USD ($)share
Stock Options [Abstract]
Number of share options outstanding in share-based payment arrangement at beginning of period | share	6,250,000	6,595,000
Weighted average exercise price of share options outstanding in share-based payment arrangement at beginning of period | $	$ 0.29	$ 0.37
Number of share options granted in share-based payment arrangement | share		2,200,000
Weighted average exercise price of share options granted in share-based payment arrangement | $		$ 0.10
Number of share options expired in share-based payment arrangement | share	(520,000)	(2,545,000)
Weighted average exercise price of share options expired in share-based payment arrangement | $	$ 0.34	$ 0.34
Number of share options outstanding in share-based payment arrangement at end of period | share	5,730,000	6,250,000
Weighted average exercise price of share options outstanding in share-based payment arrangement at end of period | $	$ 0.25	$ 0.29

Stock options (Schedule of de_2

Stock options (Schedule of detailed information about options, valuation assumptions) (Details)	12 Months Ended
	Oct. 31, 2018USD ($)months
Disclosure Of Information About Stock Options [Line Items]
Share price at grant date (per share)	$ 0.09
Exercise price	$ 0.10
Volatility factor (based on historical volatility)	95.00%
Risk free interest rate	2.07%
Expected life of conversion features (in months) | months	60
Expected dividend yield	0.00%
Forfeiture rate	0.00%

Stock options (Schedule of de_3

Stock options (Schedule of detailed information related to number and weighted average remaining contractual life of outstanding share options) (Details)	Oct. 31, 2019USD ($)shareyear	Oct. 31, 2018USD ($)share	Oct. 31, 2017USD ($)share
Disclosure Of Information About Stock Options [Line Items]
Number of stock options outstanding | share	5,730,000	6,250,000	6,595,000
Exercise price | $	$ 0.25	$ 0.29	$ 0.37
Weighted average remaining contractual life of outstanding share options | year	2.4
June 4, 2015 [Member]
Disclosure Of Information About Stock Options [Line Items]
Number of stock options outstanding | share	300,000
Exercise price | $	$ 0.49
Weighted average remaining contractual life of outstanding share options | year	0.6
August 20, 2015 [Member]
Disclosure Of Information About Stock Options [Line Items]
Number of stock options outstanding | share	940,000
Exercise price | $	$ 0.46
Weighted average remaining contractual life of outstanding share options | year	0.8
September 30, 2015 [Member]
Disclosure Of Information About Stock Options [Line Items]
Number of stock options outstanding | share	250,000
Exercise price | $	$ 0.40
Weighted average remaining contractual life of outstanding share options | year	0.9
December 30, 2016 [Member]
Disclosure Of Information About Stock Options [Line Items]
Number of stock options outstanding | share	2,040,000
Exercise price | $	$ 0.25
Weighted average remaining contractual life of outstanding share options | year	2.2
June 29, 2018 [Member]
Disclosure Of Information About Stock Options [Line Items]
Number of stock options outstanding | share	2,200,000
Exercise price | $	$ 0.1
Weighted average remaining contractual life of outstanding share options | year	3.7

Loss per share (Schedule of det

Loss per share (Schedule of detailed information about basic and diluted loss per share) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Numerator
Loss attributable to common shareholders	$ (2,832,864)	$ (2,362,239)	$ (4,346,200)
Loss used in computation of basic and diluted loss per	$ (2,832,864)	$ (2,362,239)	$ (4,346,200)
Denominator
Weighted average number of common shares for computation of basic and diluted loss per share	288,398,051	237,242,674	207,131,781

Income taxes (Schedule of detai

Income taxes (Schedule of detailed information about unused tax losses) (Details)	Oct. 31, 2019USD ($)
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	$ 30,464,901
2026 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,824,942
2027 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,534,633
2028 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
2029 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	2,025,557
2030 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	4,003,008
2031 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,297,032
2032 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,742,710
2033 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,874,906
2034 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	3,163,646
2035 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	3,378,666
2036 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	3,736,090
2037 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	2,870,519
2038 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,783,250
2039 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,229,942
Canada [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	25,700,478
Canada [Member] | 2026 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,824,942
Canada [Member] | 2027 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,534,633
Canada [Member] | 2028 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
Canada [Member] | 2029 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,572,795
Canada [Member] | 2030 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	2,122,111
Canada [Member] | 2031 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,278,506
Canada [Member] | 2032 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,416,917
Canada [Member] | 2033 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,717,443
Canada [Member] | 2034 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	2,484,557
Canada [Member] | 2035 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	2,807,765
Canada [Member] | 2036 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	3,295,071
Canada [Member] | 2037 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	2,637,800
Canada [Member] | 2038 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,783,250
Canada [Member] | 2039 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,224,688
Other foreign [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	4,764,423
Other foreign [Member] | 2026 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
Other foreign [Member] | 2027 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
Other foreign [Member] | 2028 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
Other foreign [Member] | 2029 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	452,762
Other foreign [Member] | 2030 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,880,897
Other foreign [Member] | 2031 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	18,526
Other foreign [Member] | 2032 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	325,793
Other foreign [Member] | 2033 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	157,463
Other foreign [Member] | 2034 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	679,089
Other foreign [Member] | 2035 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	570,901
Other foreign [Member] | 2036 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	441,019
Other foreign [Member] | 2037 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	232,719
Other foreign [Member] | 2038 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
Other foreign [Member] | 2039 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	$ 5,254

Income taxes (Schedule of det_2

Income taxes (Schedule of detailed information about deferred taxes) (Details) - USD ($)	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Disclosure Of Information About Income Taxes [Line Items]
Deferred tax assets	$ 9,917,008	$ 9,441,177	$ 9,226,008
Deferred tax assets not recognized	(9,917,008)	(9,441,177)	(9,226,008)
Net deferred tax assets	0	0	0
Non-capital losses and other [Member]
Disclosure Of Information About Income Taxes [Line Items]
Deferred tax assets	8,073,286	7,698,859	7,277,434
Capital losses [Member]
Disclosure Of Information About Income Taxes [Line Items]
Deferred tax assets	175,090	175,090	350,180
Property, equipment, patents and deferred costs [Member]
Disclosure Of Information About Income Taxes [Line Items]
Deferred tax assets	$ 1,668,632	$ 1,567,228	$ 1,598,394

Income taxes (Schedule of det_3

Income taxes (Schedule of detailed information about effective income tax expense recovery) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Disclosure Of Information About Income Taxes [Line Items]
Loss before income taxes	$ (2,832,864)	$ (2,362,239)	$ (4,346,200)
Statutory tax rate	26.50%	26.50%	26.50%
Expected income tax recovery	$ (750,709)	$ (625,993)	$ (1,151,743)
Non-deductible expenses and other items	270,610	182,056	413,499
Effect of exchange rate on deferred tax assets carried forward	4,269	225,846	424,023
Effect of higher tax rates in foreign jurisdiction	0	0	163,651
Change in deferred tax assets not recognized	475,830	218,091	150,570
Current tax expense (income)	$ 0	$ 0	$ 0

Operating expenses (Schedule of

Operating expenses (Schedule of detailed information about components of general and administrative expenses) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Disclosure Of Operating Expenses [Line Items]
General and administrative expense	$ 197,208	$ 305,338	$ 305,421
General and administrative [Member]
Disclosure Of Operating Expenses [Line Items]
General and administrative expense	56,720	63,936	98,187
Rent and occupancy cost [Member]
Disclosure Of Operating Expenses [Line Items]
General and administrative expense	64,647	70,674	72,725
Office insurance [Member]
Disclosure Of Operating Expenses [Line Items]
General and administrative expense	26,812	117,615	54,023
Investor relations, listing and filing fees [Member]
Disclosure Of Operating Expenses [Line Items]
General and administrative expense	$ 49,029	$ 53,113	$ 80,486

Operating expenses (Schedule _2

Operating expenses (Schedule of detailed information about components of professional, other fees and salaries) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Disclosure Of Operating Expenses [Line Items]
Professional, other fees and salaries	$ 441,981	$ 747,280	$ 1,433,113
Professional fees [Member]
Disclosure Of Operating Expenses [Line Items]
Professional, other fees and salaries	157,354	165,685	224,139
Consulting fees [Member]
Disclosure Of Operating Expenses [Line Items]
Professional, other fees and salaries	53,845	316,815	813,735
Salaries and benefits [Member]
Disclosure Of Operating Expenses [Line Items]
Professional, other fees and salaries	$ 230,782	$ 264,780	$ 395,239

Supplemental cash flow inform_3

Supplemental cash flow information (Schedule of detailed information about of detailed information about supplemental cash flow information) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Supplemental Cash Flow Informations Abstract
Balance - beginning of year	$ 3,126,687	$ 2,978,751
Cash flows from financing activities:
Proceeds from issuance of convertible debentures	780,891	1,457,983
Repayments of convertible debentures	(172,198)	(662,080)	$ (581,618)
Non-cash changes:
Increase in loan principal	60,000	0
Accretion Expenses	1,517,436	2,039,344	1,358,101
Accrued interest on convertible debentures	164,243	125,328	666,245
Gain on revaluation of derivative liabilities	(343,436)	(1,094,718)	(1,614,822)
Gain on extinguishment of debt	(646)	(399,191)
Convertible debentures converted into common shares	(1,636,825)	(1,205,130)	(2,536,963)
Renewal of convertible debentures	(106,594)	(137,854)
Foreign exchange gain	(25,059)	(87,034)
Balance - end of year	$ 3,364,499	$ 3,126,687	$ 2,978,751

Key management compensation a_4

Key management compensation and related party transactions (Schedule of detailed information about key management personnel) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Disclosure of transactions between related parties [abstract]
Professional, other fees, and salaries	$ 4,684	$ 235,297	$ 667,724
Stock-based compensation	0	44,740	382,531
Key management compensation	$ 4,684	$ 280,037	$ 1,050,255

Commitments - Disclosure of det

Commitments - Disclosure of detailed information about commitments (Details)	Oct. 31, 2019USD ($)
Disclosure Of Commitments [Line Items]
Lease commitments	$ 132,165
Less than one year [Member]
Disclosure Of Commitments [Line Items]
Lease commitments	48,060
Two to five years [Member]
Disclosure Of Commitments [Line Items]
Lease commitments	$ 84,105

Financial risk management (Sche

Financial risk management (Schedule of detailed information about consolidated financial statements) (Details) - Currency risk [Member] - USD ($)	Oct. 31, 2019	Oct. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Cash (bank indebtedness)	$ (3,188)	$ 99,139
Trade payables and other liabilities	387,766	318,172
Convertible debentures	2,010,940	1,877,487
Derivative liabilities	$ 207,161	$ 199,650

Financial risk (Schedule of det

Financial risk (Schedule of detailed information about analysis of the maturity of the trade payables) (Details) - Liquidity risk [Member] - USD ($)	Oct. 31, 2019	Oct. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Trade and other payables	$ 812,690	$ 840,324
Less than 30 days past billing date [Member]
Disclosure of detailed information about financial instruments [line items]
Trade and other payables	18,201	87,356
31 to 90 days past billing date [Member]
Disclosure of detailed information about financial instruments [line items]
Trade and other payables	13,259	12,837
Over 90 days past billing date [Member]
Disclosure of detailed information about financial instruments [line items]
Trade and other payables	$ 781,230	$ 740,131

Financial risk management (Sc_2

Financial risk management (Schedule of detailed information about analysis of the maturity of the convertible debentures and derivative liabilities) (Details) - USD ($)	Oct. 31, 2019	Oct. 31, 2018
Disclosure of detailed information about financial instruments [line items]
Convertible debentures	$ 2,599,074	$ 2,476,571
Liquidity risk [Member]
Disclosure of detailed information about financial instruments [line items]
Convertible debentures	2,599,074	2,476,571
Derivative liabilities	765,425	650,116
Liquidity risk [Member] | Less than three months [Member]
Disclosure of detailed information about financial instruments [line items]
Convertible debentures	754,799	862,686
Derivative liabilities	75,528	90,142
Liquidity risk [Member] | Three to six months [Member]
Disclosure of detailed information about financial instruments [line items]
Convertible debentures	1,168,349	1,346,315
Derivative liabilities	71,326	382,309
Liquidity risk [Member] | Six to twelve months [Member]
Disclosure of detailed information about financial instruments [line items]
Convertible debentures	675,926	267,570
Derivative liabilities	$ 618,571	$ 177,665