Micromem (MMTIF) 20-F 5 Feb 24 2023 FY Annual report (foreign) Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Oct. 31, 2023 shares
Entity Addresses [Line Items]
Entity Registrant Name	MICROMEM TECHNOLOGIES INC.
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Central Index Key	0001085921
Document Type	20-F
Amendment Flag	false
Document Period End Date	Oct. 31, 2023
Document Financial Statement Error Correction [Flag]	false
Current Fiscal Year End Date	--10-31
Document Annual Report	true
Document Transition Report	false
Document Shell Company Report	false
Document Fiscal Year Focus	2023
Entity Voluntary Filers	No
Contact Personnel Fax Number	416-364-6513
Entity Well Known Seasoned Issuer	No
Document Registration Statement	false
Entity Current Reporting Status	Yes
Entity Common Stock, Shares Outstanding	510,368,838
Entity File Number	0-26005
Entity Address, Country	CA
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Document Fiscal Period Focus	FY
Document Accounting Standard	U.S. GAAP
Entity Address, State or Province	ON
Entity Address, Postal Zip Code	M5H 2K1
Entity Address, City or Town	Toronto
Entity Address, Address Line One	121 Richmond Street West
Entity Address, Address Line Two	Suite 602
Entity Incorporation, State or Country Code	Z4
Auditor Firm ID	1930
Auditor Location	Toronto, Canada
Auditor Name	MNP LLP
ICFR Auditor Attestation Flag	false
Business Contact [Member]
Entity Addresses [Line Items]
Contact Personnel Name	Joseph Fuda
Local Phone Number	364-6513
City Area Code	416
Entity Address, State or Province	ON
Entity Address, Postal Zip Code	M5H 2K1
Entity Address, City or Town	Toronto
Entity Address, Address Line One	121 Richmond Street West
Entity Address, Address Line Two	Suite 602

Consolidated Statements of Fina

Consolidated Statements of Financial Position - USD ($)	Oct. 31, 2023	Oct. 31, 2022
Current
Cash	$ 31,584	$ 33,227
Prepaid expenses and other receivables	103,999	18,200
Total current assets	135,583	51,427
Property and equipment	32,767	48,092
Total assets	168,350	99,519
Current
Trade payables and other liabilities	209,285	287,575
Deposit liability	63,000	0
Current lease liability	17,036	15,366
Debenture payable	37,509	38,001
Convertible debentures	3,548,059	3,792,064
Derivative liabilities	1,079,393	641,299
Total current liabilities	4,954,282	4,774,305
Non-current lease liability	12,018	29,418
Long-term loan	43,254	43,796
Total liabilities	5,009,554	4,847,519
Shareholders' Deficiency
Share capital	90,471,712	87,784,725
Contributed surplus	24,868,843	27,459,730
Equity component of convertible debentures	3,220,473	793,140
Accumulated deficit	(123,402,232)	(120,785,595)
Total shareholders' deficiency	(4,841,204)	(4,748,000)
Total liabilities and shareholders' deficiency	$ 168,350	$ 99,519

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Loss - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Operating expenses
General and administrative	$ 148,616	$ 185,366	$ 155,504
Professional, other fees and salaries	610,052	647,710	424,485
Statute barred payables	0	0	(422,982)
Stock-based compensation	217,965	41,484	360,044
Travel and entertainment	63,360	59,504	24,903
Depreciation of property and equipment	16,492	25,878	28,033
Amortization of patents	0	3,877	8,000
Foreign exchange (gain) loss	(62,613)	(176,477)	222,553
Total operating expenses	993,872	787,342	800,540
Other expenses (income)
Accretion expense	279,834	1,179,603	1,169,921
Interest expense on convertible debt	540,929	469,425	495,809
Other finance expenses	86,352	13,233	84,478
Gain on revaluation of derivative liabilities	(658,503)	(409,607)	(2,547,192)
Loss (gain) on conversion of convertible debentures	21,120	94,326	(9,506)
Loss (gain) on repayment of convertible debentures	27,243	(47,877)	0
Loss on extinguishment of convertible debentures	1,400,823	200,650	1,018,928
Total other expenses	1,697,798	1,499,753	212,438
Loss before income tax provision	(2,691,670)	(2,287,095)	(1,012,978)
Income tax provision	0	0	0
Net loss and comprehensive loss	$ (2,691,670)	$ (2,287,095)	$ (1,012,978)
Weighted average number of outstanding shares, basic (in shares)	490,310,376	451,177,796	422,613,046
Weighted average number of outstanding shares, diluted (in shares)	490,310,376	451,177,796	422,613,046
Loss per share, basic	$ (0.01)	$ (0.01)	$ 0
Loss per share, diluted	$ (0.01)	$ (0.01)	$ 0

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, 2020	$ 85,463,642	$ 27,810,586	$ 23,952	$ (117,485,522)	$ (4,187,342)
Beginning Balance (Shares) at Oct. 31, 2020					402,552,453
Private placements of shares for cash	840,564				$ 840,564
Private placements of shares for cash (Shares)					17,573,429
Convertible debentures converted into common shares	511,630				$ 511,630
Convertible debentures converted into common shares (Shares)					15,611,852
Shares issued on settlement of accounts payable					$ 0
Shares issued on settlement of accounts payable (Shares)					0
Expiry of convertible debenture conversion option		26,752	(26,752)
Renewal of convertible debentures			16,804		$ 16,804
Stock-based compensation		360,044			360,044
Net loss and comprehensive loss				(1,012,978)	(1,012,978)
Ending Balance at Oct. 31, 2021	86,815,836	28,197,382	14,004	(118,498,500)	$ (3,471,278)
Ending Balance (Shares) at Oct. 31, 2021					435,737,734
Private placements of shares for cash	207,588				$ 207,588
Private placements of shares for cash (Shares)					5,012,450
Share issuance costs	(25,591)				$ (25,591)
Convertible debentures converted into common shares	764,432				$ 764,432
Convertible debentures converted into common shares (Shares)					26,443,820
Shares issued on settlement of accounts payable	22,460				$ 22,460
Shares issued on settlement of accounts payable (Shares)					413,674
Expiry of convertible debenture conversion option		1,258,388	(1,258,388)
Renewal of convertible debentures			(2,037,524)		$ 2,037,524
Stock-based compensation		41,484			41,484
Net loss and comprehensive loss				(2,287,095)	(2,287,095)
Ending Balance at Oct. 31, 2022	87,784,725	27,459,730	793,140	(120,785,595)	$ (4,748,000)
Ending Balance (Shares) at Oct. 31, 2022					467,607,678
Private placements of shares for cash	535,525				$ 535,525
Private placements of shares for cash (Shares)					9,864,500
Share issuance costs	(25,586)				$ (25,586)
Convertible debentures converted into common shares	1,742,226		(85,804)		$ 1,656,422
Convertible debentures converted into common shares (Shares)					30,346,660
Exercise of stock options	434,822	(220,682)			$ 214,140
Exercise of stock options (Shares)					2,550,000
Expiry of stock options	(75,033)			75,033
Shares issued on settlement of accounts payable					$ 0
Shares issued on settlement of accounts payable (Shares)					0
Expiry of convertible debenture conversion option		793,139	(793,139)
Renewal of convertible debentures		(3,306,276)	3,306,276
Stock-based compensation		217,965			$ 217,965
Net loss and comprehensive loss				(2,691,670)	(2,691,670)
Ending Balance at Oct. 31, 2023	$ 90,471,712	$ 24,868,843	$ 3,220,473	$ (123,402,232)	$ (4,841,204)
Ending Balance (Shares) at Oct. 31, 2023					510,368,838

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Operating activities
Net loss	$ (2,691,670)	$ (2,287,095)	$ (1,012,978)
Items not affecting cash:
Statute barred payables	0	0	(422,982)
Depreciation of property and equipment	16,492	25,878	28,033
Amortization of patents	0	3,877	8,000
Accretion expense	279,834	1,179,603	1,169,921
Accrued interest on convertible debentures	471,596	368,280	605,507
Stock-based compensation	217,965	41,484	360,044
Loss (gain) on conversion of convertible debentures	21,120	94,326	(9,506)
Loss (gain) on repayment of convertible debentures	27,243	(47,877)	0
Gain on revaluation of derivative liabilities	(658,503)	(409,607)	(2,547,192)
Loss on extinguishment of convertible debentures	1,400,823	200,650	1,018,928
Foreign exchange (gain) loss	(67,031)	(136,336)	421,937
Total adjustments to reconcile profit (loss)	(982,131)	(966,817)	(380,288)
Net changes in non-cash working capital:
(Increase) decrease in prepaid expenses and other receivables	(85,799)	5,807	1,414
Increase in deposit liability	63,000	0	0
Decrease in trade payables and other liabilities	(78,290)	(36,021)	(383,892)
Cash flows used in operating activities	(1,083,220)	(997,031)	(762,766)
Investing activity
Purchase of property and equipment	(2,044)	0	(5,271)
Cash flows used in investing activity	(2,044)	0	(5,271)
Financing activities
Principal payments on lease liability	(15,609)	(25,317)	(27,282)
Proceeds from long-term loan	0	0	17,974
Proceeds from private placements of shares	535,525	207,588	840,564
Share issuance costs	(25,586)	(25,591)	0
Proceeds from the exercise of options	214,140	0	0
Proceeds from issuance of convertible debentures	645,151	765,671	510,000
Repayments of convertible debentures	(270,000)	(63,490)	(593,301)
Cash flows provided by financing activities	1,083,621	858,861	747,955
Net change in cash	(1,643)	(138,170)	(20,082)
Cash - beginning of period	33,227	171,397	191,479
Cash - end of period	31,584	33,227	171,397
Supplemental cash flow information
Interest paid (classified in operating activities)	64,679	88,465	87,266
Interest converted (classified in operating activities)	238,859	12,680	196,964
Interest paid on non-convertible debt (classified in operating activities)	9,170	9,604	11,785
Interest paid on lease liability (classified in operating activities)	3,323	3,629	9,160
Carrying amount of convertible debentures converted into common shares	1,742,226	764,432	521,136
Shares issued on settlement of accounts payable	0	22,460	0
ROU asset and lease liability recognized	$ 0	$ 48,408	$ 0

Reporting entity and nature of

Reporting entity and nature of business	12 Months Ended
	Oct. 31, 2023
Reporting Entity And Nature Of Business [Abstract]
Reporting entity and nature of business [Text Block]	1. 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 602, 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, 2023 and is devoting substantially all its efforts to securing commercial revenue opportunities.

Going concern

Going concern	12 Months Ended
	Oct. 31, 2023
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 substantial 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, 2023, the Company reported a net loss and comprehensive loss of $2,691,670 (2022 - $2,287,095, 2021 - $1,012,978) and negative cash flow from operations of $1,083,220 (2022 - $997,031, 2021 - $762,766). The Company's working capital deficiency as at October 31, 2023 was $4,818,699 (October 31, 2022 - $4,722,878). The Company's success depends on the profitable commercialization of its proprietary sensor 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 2024; however, the ability of the Company to continue as a going concern is dependent upon its ability to secure additional financing and/or to profitably commercialize its technology. There is no assurance that the Company will be successful in the profitable commercialization of its technology, or will be able to secure the necessary additional financing. 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 was not appropriate for these consolidated financial statements then adjustments could 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 could be material.

Basis of presentation

Basis of presentation	12 Months Ended
	Oct. 31, 2023
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 International Financial Reporting Interpretations Committee ("IFRIC"). 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 January 30, 2024. (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's wholly-owned subsidiaries include: (i) Inactive subsidiaries Domiciled in Micromem Applied Sensors Technology Inc. ("MAST") United States 707019 Canada Inc. Canada Memtech International Inc. Bahamas Memtech International (USA) Inc., Pageant Technologies (USA) Inc. United States Pageant Technologies Inc., Micromem Holdings (Barbados) Inc. Barbados (b) 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 IFRS 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 conversion features 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, risk-free interest rate, and exercise price in the binomial option pricing model. (ii) Long-lived assets consist of property and equipment and patents. Depreciation and 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 cash flow 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.

Summary of significant accounti

Summary of significant accounting policies	12 Months Ended
	Oct. 31, 2023
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, expenses, and cash flows, are translated into USD using average exchange rates for the year. 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) All financial instruments are initially recorded at fair value at the time they are entered into. The Company aggregates its financial instruments in accordance with IFRS 9, Financial Instruments, into classes based on their nature and characteristics. Management determines the classification when the instruments are initially recognized, which is normally the date of the transaction. The Company's accounting policy for each class of financial instruments is 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, and financial liabilities which are not required, and for which the Company has not elected to subsequently record at fair value through profit or loss. Financial instruments in this category are initially recognized at fair value plus directly attributable transaction costs. Subsequently, these instruments are measured at amortized cost using the effective interest method. The effective interest method is a method of calculating the amortized cost of a financial instrument and of allocating interest over the relevant period. The effective interest rate is the rate that discounts estimated future cash receipts through the expected life of the financial instrument, or, where appropriate, a shorter period, to the net carrying amount on initial recognition. Financial assets are adjusted for any expected credit losses (“ECLs”). Financial assets in this category include cash and other receivables. Financial liabilities in this category include trade payables and other liabilities, debenture payable, convertible debentures and long-term loan. (ii) This category includes derivative instruments and 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 contractual cash flows and sell. These financial instruments are initially recognized at fair value; all transaction costs are recognized immediately in profit or loss. Subsequently, these instruments are recognized at fair value at each reporting date. Any changes in fair value, and gains or losses upon disposition of the financial instruments are recognized in profit or loss. Financial liabilities in this category include the derivative liabilities. (iii) This category only includes equity instruments, which the Company intends to hold for the foreseeable future and which the Company has irrevocably elected to so classify upon initial recognition or transition. Equity instruments in this category are subsequently measured at fair value with changes recognized in other comprehensive income, with no recycling of gains or losses to profit or loss upon derecognition. Dividend income is recognized in earnings. Equity instruments at FVOCI are not subject to an impairment assessment under IFRS 9. The Company has no financial assets in this category. (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) 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 are allocated to the derivative liability and host contract in proportion to their initial carrying amounts. (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 at the original effective interest rate under the new terms is at least 10% different from the discounted present value of the remaining cash flows of the original financial liability. For a modification that does not result in derecognition, a gain or loss will be recognised in profit or loss for the difference between the original contractual cash flows and the modified cash flows discounted at the original effective interest rate. For a modification that results in derecognition, a gain or loss will be recognised in profit or loss for the difference between the carrying amount of the financial liability extinguished and the fair value of the modified financial liability. (d) Fair value is the price that would be received to sell an asset, or paid to transfer a liability, in an orderly transaction between market participants at the measurement date. Fair value measurement for financial instruments are categorized into levels within a fair value hierarchy based on the nature of the valuation inputs (Levels 1, 2 or 3). The three levels are defined based on the observability of significant inputs to the measurement, as follows: 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. When one is available, the Company measures the fair value of an instrument using the quoted price in an active market for that instrument. A market is regarded as “active” if transactions for the asset or liability take place with sufficient frequency and volume to provide pricing information on an ongoing basis. If there is no quoted price in an active market, then the Company uses valuation techniques that maximize the use of relevant observable inputs and minimize the use of unobservable inputs. The chosen valuation technique incorporates all of the factors that market participants would take into account in pricing a transaction. The derivative liabilities are measured at fair value on a recurring basis and categorized as level 2 in the fair value hierachy. The fair value of the derivative liabilities at October 31, 2023 is $1,079,393 (2022 - $641,299). See Note 11 (c). 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 years ended October 31, 2023 and 2022, there were no transfers between levels. (e) Property and equipment are recorded at cost and are depreciated over their estimated useful lives at the following annual rates and methods: Method Rate Computers Declining balance 30% Right-of-use asset Straight-line lesser of useful life and lease term (three years) (f) The Company follows the guidelines prescribed in IAS 36, Impairment of Assets 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 operations and comprehensive loss. (g) 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. Costs to be recovered from development partners are recorded to development costs receivable. Payments received from development partners on projects are recorded to income as a recovery of costs incurred and reduce the outstanding receivable. There were no development costs incurred or recovery of such costs in 2023, 2022, or 2021. (h) Patents are recorded at cost and are amortized on a straight line basis over their estimated useful lives of 5 years. (i) As a lessee At the inception of a contract, the Company assesses whether a contract is, or contains a lease. A contract is, or contains a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. The Company recognizes a right-of-use asset and a lease liability at the commencement date of the lease. The right-of-use asset is initially measured at cost, which comprises the initial amount of the lease liability adjusted for any lease payments made at or before the commencement date, plus any initial direct costs incurred and an estimate of costs to dismantle and remove the underlying asset, less any lease incentives received. The right-of-use asset is subsequently depreciated using the straight-line method from the commencement date to the earlier of the end of the useful life of the right-of-use asset or the end of the lease term. In addition, the right-of-use assets are adjusted for impairment losses, if any. The estimated useful lives and recoverable amounts of right-of-use assets are determined on the same basis as those of property and equipment. The lease liability is initially measured at the present value of the lease payments that are not paid at the commencement date, discounted using the interest rate implicit in the lease or, if that rate cannot be readily determined, the Company's incremental borrowing rate currently set at 9%. The lease liability is subsequently measured at amortized cost using the effective interest method. The Company has elected not to recognize right-of-use assets and lease liabilities for short-term leases (lease term of 12 months or less) and leases for which the underlying asset is of low value as there are none. The Company recognizes the lease payments associated with these leases as an expense on a straight-line basis over the lease term. As a lessor As a lessor, the Company classifies its leases as either a finance lease or an operating lease. To classify each lease, the Company makes an overall assessment of whether the lease transfers substantially all of the risks and rewards incidental to ownership of the underlying asset. If this is the case, then the lease is a finance lease; if not, then it is an operating lease. Rental income arising from operating leases is accounted on a straight-line basis over the lease term. (j) 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 is 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. (k) The Company recognises government grants when there is reasonable assurance of compliance with grant conditions and that the grants will be received. Government grants are recognised in profit or loss on a systematic basis over the periods when the related expenses are incurred and are presented in the consolidated financial statements as a reduction of these expenses. A government grant that becomes receivable as compensation for expenses already incurred is recognised in profit or loss of the period in which it becomes receivable. (l) 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. (m) 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. (n) Share capital is presented at the fair value of the shares issued or the cash amount received. Costs related to the issuance of shares are reported in equity, net of tax, as a deduction from the issuance proceeds. (o) 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.

New accounting standards and pr

New accounting standards and pronouncements	12 Months Ended
	Oct. 31, 2023
Disclosure Of Adoption Of New Accounting Pronouncements [Abstract]
New accounting standards and pronouncements [Text Block]	5. New accounting standards and pronouncements (a) Amendment to IAS 1, Presentation of Financial Statements, IAS 1 was amended in January 2020 to address inconsistences with how entities apply the standard over classification of current and non-current liabilities. The amendment serves to address whether, in the statement of financial position, debt and other liabilities with an uncertain settlement should be classified as current or non-current. The amendment is effective for annual reporting periods beginning on or after January 1, 2024. Earlier adoption is permitted. The Company will adopt this amendment as of the effective date, and does not anticipate any material impacts on adoption. (b) Amendment to IAS 1, Presentation of Financial Statements, In February 2021, the IASB issued ‘Disclosure of Accounting Policies’ with amendments that are intended to help preparers in deciding which accounting policies to disclose in their financial statements. The amendments are effective for year ends beginning on or after January 1, 2023. Earlier adoption is permitted. The Company will adopt this amendment as of the effective date, and does not anticipate any material impacts on adoption. (c) Amendment to IAS 12 Deferred Tax related to Assets and Liabilities arising from a Single Transaction, The amendment narrowed the scope of certain recognition exemptions so that it no longer applies to transactions that, on initial recognition, give rise to equal taxable and deductible temporary differences. An entity applies the amendments to transactions that occur on or after the beginning of the earliest comparative period presented. It also, at the beginning of the earliest comparative period presented, recognizes deferred tax for all temporary differences related to leases and decommissioning obligations and recognizes the cumulative effect of initially applying the amendments as an adjustment to the opening balance of retained earnings (or other component of equity, as appropriate) at that date. The amendment is effective for annual periods beginning on or after January 1, 2023. Earlier adoption is permitted. The Company will adopt the amendment as of the effective date, and does not anticipate any material impacts on adoption. (d) Amendment to IAS 8, Accounting Policies, Changes in Accounting Estimates and Errors, In February 2021, the IASB issued ‘Definition of Accounting Estimates’ to help entities distinguish between accounting policies and accounting estimates. The amendment is effective for annual reporting periods beginning on or after January 1, 2023. Earlier adoption is permitted. The Company will adopt the amendment as of the effective date, and is currently assessing the impacts of adoption. (e) Amendment to IFRS 10, Consolidated Financial Statements and IAS 28, Investments in Associates and Joint Ventures, The amendment addresses a conflict between the requirements of IAS 28 and IFRS 10 and clarifies that in a transaction involving an associate or joint venture, the extent of gain or loss recognition depends on whether the assets sold or contributed constitute a business. The effective date of these amendments is yet to be determined, however early adoption is permitted. The Company will adopt the amendment as of the effective date, and does not anticipate any material impacts on adoption.

Property and equipment

Property and equipment	12 Months Ended
	Oct. 31, 2023
Property and equipment [Abstract]
Property and equipment [Text Block]	6. Property and equipment As at Additions Disposals Foreign As at Cost Computers $ 7,466 $ 2,044 $ - $ - $ 9,510 Right-of-use assets 48,408 - - - 48,408 55,874 2,044 - - 57,918 Accumulated depreciation Computers 3,748 1,148 $ - $ 85 $ 4,981 Right-of-use assets 4,034 15,344 - 792 20,170 7,782 16,492 - 877 25,151 Net book value $ 48,092 $ 32,767 As at Additions Disposals Foreign As at Cost Computers $ 18,570 $ - $ (11,104 ) $ - $ 7,466 Right-of-use assets 74,307 48,408 (74,307 ) - 48,408 92,877 48,408 (85,411 ) - 55,874 A ccumulated depreciation Computers 12,824 1,723 (10,799 ) - 3,748 Right-of-use assets 54,041 24,155 (74,162 ) - 4,034 66,865 25,878 (84,961 ) - 7,782 Net book value $ 26,012 $ 48,092 During the year ended October 31, 2022, the Company's lease agreement pertaining to the right-of-use asset as at October 31, 2021 expired and the asset was fully depreciated and derecognized. A new lease agreement was entered into and is therefore recorded as an addition during the year ended October 31, 2022. Refer to Note 8.

Patents

Patents	12 Months Ended
	Oct. 31, 2023
Intangible assets and goodwill [abstract]
Patents [Text Block]	7. Patents As at November 1, As at October 31, 2022 Additions Disposals 2023 Cost $ 681,288 $ - $ - $ 681,288 Accumulated amortization 681,288 - - 681,288 Net book value $ - $ - $ - $ - As at November 1, As at October 31, 2021 Additions Disposals 2022 Cost $ 681,288 $ - $ - $ 681,288 Accumulated amortization 677,411 3,877 - 681,288 Net book value $ 3,877 $ (3,877 ) $ - $ - The Company holds several patents in the United States for its Multimodal Fluid Condition Sensor Platform. The patents are fully amortized as at October 31, 2023 and 2022.

Leases

Leases	12 Months Ended
	Oct. 31, 2023
Disclosure of quantitative information about leases for lessee [abstract]
Leases [Text Block]	8. Leases (a) The lease obligation relates to the use of office space in Toronto, Ontario. The lease agreement in effect for the year ended October 31, 2021 was set to expire on July 31, 2022. On May 26, 2022, a new lease agreement was entered into for a term from August 1, 2022 to July 31, 2025 for office space in another location in Toronto, Ontario. The present value of the lease obligation was calculated using a discount rate of 9%. (a) The lease liability is summarized as follows: Balance, October 31, 2020 $ 52,070 Interest expense 9,160 Lease payments (36,442 ) Balance, October 31, 2021 $ 24,788 New lease agreement 48,408 Interest expense 3,629 Lease payments (28,946 ) Foreign exchange (3,095 ) Balance, October 31, 2022 44,784 Interest expense 3,323 Lease payments (18,932 ) Foreign exchange (121 ) Balance, October 31, 2023 $ 29,054 The following represents a maturity analysis of the Company's undiscounted contractual lease obligations as at October 31, 2023: USD Less than one year $ 18,822 Between one and five years $ 12,756 (b) As a lessor The Company sub-leases a portion of its office space under a lease agreement for a term of three years, expiring July 31, 2025. The sub-lease is classified as an operating lease because it does not transfer substantially all of the risks and rewards incidental to ownership of the asset. For the year ended October 31, 2023, the Company recognized a total of $17,682 (2022 - $19,076) as rental income which has been recorded as a reduction to general and administrative expenses on the consolidated statement of operations and comprehensive loss. The following represents a maturity analysis of the Company's lease payments to be received after October 31, 2023: USD Less than one year $ 17,626 Between one and five years $ 14,593

Long-term loan

Long-term loan	12 Months Ended
	Oct. 31, 2023
Borrowings [abstract]
Long-term loan [Text Block]	9. Long-term loan The Company was granted a $60,000 CAD ($43,254 USD) interest-free loan from the Government of Canada under the Canada Emergency Business Account ("CEBA") program to cover its operating costs (the "CEBA Loan"). If the Company repays $40,000 CAD ($28,836 USD) of the aggregate amount advanced on or before January 18, 2024, the repayment of the remaining $20,000 CAD will be forgiven. The balance was not paid by January 18, 2024, and as a result, the total principal amount was subsequently converted to a 3-year term loan at 5% annual interest paid monthly, commencing January 19, 2024. The total amount owing on the CEBA loan as at October 31, 2023 is $43,254 ($60,000 CAD) (October 31, 2022 - $43,796 ($60,000 CAD)).

Debenture payable

Debenture payable	12 Months Ended
	Oct. 31, 2023
Debenture Payable [Abstract]
Debenture payable [Text Block]	10. Debenture payable The Company issued a debenture on March 17, 2020, with a principal amount of $51,500 CAD ($37,126 USD) and an original maturity date of June 17, 2020. The extension of the debenture's maturity date resulted in a substantial modification of the existing terms of the debenture and accordingly was accounted for as an extinguishment. The debenture bears interest at a rate of 24% and is unsecured. At October 31, 2023, the debenture had an outstanding balance of $37,509 ($52,031 CAD) (October 31, 2022 - $38,001 ($52,062 CAD)). During the year ended October 31, 2023, total interest expense of $9,170 (2022 - $9,604, 2021 - $7,261) was recognized in the consolidated statement of operations and comprehensive loss.

Convertible debentures

Convertible debentures	12 Months Ended
	Oct. 31, 2023
Borrowings [abstract]
Convertible debentures [Text Block]	11. Convertible debentures The Company issues three types of convertible debentures: USD denominated convertible debentures with an equity component, Canadian dollar ("CAD") denominated convertible debentures with an embedded derivative due to variable consideration payable upon conversion caused by foreign exchange, and USD denominated convertible debentures with an embedded derivative caused by variable conversion prices. During the year ended October 31, 2023, the Company incurred $86,352 of financing costs (2022 - $21,000, 2021 - $84,478) which primarily consisted of early repayment and administrative fees, of which $nil (2022 - $nil, 2021 - $nil) was converted into common shares. (a) Convertible debentures outstanding as at October 31, 2023: USD (equity CAD (embedded USD (embedded Total Loan principal outstanding $ 1,261,265 $ 2,146,715 $ 405,001 Terms of loan Annual stated interest rate 24% 12% - 24% 2% - 4% Effective annual interest rate 24% 22 - 131% 24% - 5158% Conversion price to common shares $ 0.03 - $0.04 $ 0.05 - $0.10 (i) - (ii) Remaining life (in months) 0 - 4 0 - 11 0 - 11 Consolidated Statement of Financial Position Carrying value of loan principal $ 1,261,265 $ 1,499,667 $ 77,238 $ 2,838,170 Interest payable 344,993 334,511 30,385 709,889 Convertible debentures $ 1,606,258 $ 1,834,178 $ 107,623 $ 3,548,059 Derivative liabilities $ - $ 783,650 $ 295,743 $ 1,079,393 Equity component of convertible debentures $ 3,220,473 $ - $ - $ 3,220,473 For the year ended October 31, 2023: USD (equity CAD (embedded USD (embedded Total Consolidated Statement of Operations and Comprehensive Loss Accretion expense $ 18,258 $ 243,162 $ 18,414 $ 279,834 Interest expense $ 273,458 $ 254,523 $ 12,948 $ 540,929 Gain on revaluation of derivative liabilities $ - $ (507,186 ) $ (151,317 ) $ (658,503 ) Loss on conversion of convertible debentures $ - $ - $ 21,120 $ 21,120 Loss on repayment of convertible debentures $ - $ - $ 27,243 $ 27,243 (Gain) loss on extinguishment of convertible debentures $ 33,488 $ 1,169,800 $ 197,535 $ 1,400,823 Consolidated Statement of Changes in Equity Amount of principal converted to common shares $ 250,000 $ 455,000 $ 232,700 Amount of interest converted to common shares $ 30,016 $ 204,189 $ 4,654 Number of common shares issued on conversion of convertible debentures 6,406,250 14,391,709 9,548,701 30,346,660 (a) USD (equity CAD (embedded USD (embedded Total Consolidated Statement of Cash Flows Amount of principal repaid in cash $ - $ - $ 270,000 $ 270,000 Amount of interest repaid in cash $ 12,973 $ 47,353 $ 4,353 $ 64,679 (i) (ii) (b) Convertible debentures outstanding as at October 31, 2022: USD (equity CAD (embedded USD (embedded Total Loan principal outstanding $ 1,205,144 $ 2,321,755 $ 347,700 Terms of loan Annual stated interest rate 12% - 24% 12% - 24% 2% - 4% Effective annual interest rate 24% 22 - 131% 24% - 5803% Conversion price to common shares $0.03 - $0.07 $0.05 - $0.08 (i) - (ii) Remaining life (in months) 0 - 6 0 - 10 0 - 11 Consolidated Statement of Financial Position Carrying value of loan principal $ 1,203,478 $ 1,661,742 $ 130,424 $ 2,995,644 Interest payable 380,360 389,617 26,443 796,420 Convertible debentures $ 1,583,838 $ 2,051,359 $ 156,867 $ 3,792,064 Derivative liabilities $ - $ 439,194 $ 202,105 $ 641,299 Equity component of convertible debentures $ 793,140 $ - $ - $ 793,140 (i) (ii) For the year ended October 31, 2022: USD (equity CAD (embedded USD (embedded Total Consolidated Statement of Operations and Comprehensive Loss Accretion expense $ 28,000 $ 1,086,385 $ 65,218 $ 1,179,603 Interest expense $ 230,058 $ 232,211 $ 7,156 $ 469,425 Gain on revaluation of derivative liabilities $ - $ (379,736 ) $ (29,871 ) $ (409,607 ) Loss on conversion of convertible debentures $ - $ - $ 94,326 $ 94,326 Gain on repayment of convertible debentures $ - $ (661 ) $ (47,216 ) $ (47,877 ) (Gain) loss on extinguishment of convertible debentures $ (28,007 ) $ 99,078 $ 129,579 $ 200,650 (b) USD (equity CAD (embedded USD (embedded Total Consolidated Statement of Changes in Equity Amount of principal converted to common shares $ - $ - $ 712,100 Amount of interest converted to common shares $ - $ - $ 12,680 Number of common shares issued on conversion of convertible debentures - - 26,443,820 26,443,820 Consolidated Statement of Cash Flows Amount of principal repaid in cash $ - $ 7,490 $ 56,000 $ 63,490 Amount of interest repaid in cash $ 14,941 $ 73,524 $ - $ 88,465 For the year ended October 31, 2021: USD (equity CAD (embedded USD (embedded Total Consolidated Statement of Operations and Comprehensive Loss Accretion expense $ 28,001 $ 1,003,613 $ 138,307 $ 1,169,921 Interest expense $ 236,519 $ 226,520 $ 32,770 $ 495,809 (Gain) loss on revaluation of derivative liabilities $ - $ (2,718,409 ) $ 171,217 $ (2,547,192 ) (Gain) loss on conversion of convertible debentures $ - $ (47,356 ) $ 37,850 $ (9,506 ) (Gain) loss on extinguishment of convertible debentures $ - $ 1,360,536 $ (341,608 ) $ 1,018,928 Consolidated Statement of Changes in Equity Amount of principal converted to common shares $ - $ 100,000 $ 284,000 Amount of interest converted to common shares $ 30,200 $ 160,064 $ 6,700 Number of common shares issued on conversion of convertible debentures 1,118,519 7,744,774 6,748,559 15,611,852 Consolidated Statement of Cash Flows Amount of principal repaid in cash $ 205,100 $ 31,492 $ 364,370 $ 600,962 Amount of interest repaid in cash $ 25,101 $ 36,052 $ 26,113 $ 87,266 (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: As at October 31, As at October 31, 2023 2022 Share price $0.05 $0.03 Exercise price $0.03 - $0.07 $0.02 - $0.07 Volatility factor (based on historical volatility) 114% - 189% 140% - 232% Risk free interest rate 5.11% - 5.48% 3.09% - 4.28% Expected life of conversion features (in months) 0 - 11 0 - 11 Expected dividend yield 0% 0% CDN to USD exchange rate (as applicable) 0.7209 0.7299 Call value $0.01 - $0.08 $0.00 - $0.02 The key unobservable input in these models relates to volatility. Volatility was estimated using the historical volatility of the Company's stock prices for common shares. Changes in these assumptions may affect the fair value estimates of the derivative liabilities.

Share capital

Share capital	12 Months Ended
	Oct. 31, 2023
Disclosure of classes of share capital [abstract]
Share capital [Text block]	12. Share capital (a) Authorized and outstanding shares The Company has two classes of shares as follows: (i) Special redeemable voting preference shares - 2,000,000 authorized, nil issued and outstanding. (ii) Common shares without par value – an unlimited number authorized. The holders of the common shares are entitled to receive dividends which may be declared from time to time, and are entitled to one vote per share at shareholder meetings of the Company. All common shares are ranked equally with regards to the Company's residual assets. (b) Private placements (i) In 2023, the Company completed 26 private placements with investors consisting of common shares with no warrants, pursuant to prospectus and registration exemptions set forth in applicable securities law. The Company received net proceeds of $509,939 and issued a total of 9,864,500 common shares. (ii) In 2022, the Company completed 9 private placements with investors consisting of common shares with no warrants, pursuant to prospectus and registration exemptions set forth in applicable securities law. The Company received net proceeds of $181,997 and issued a total of 5,012,450 common shares. (iii) (c) During the year ended October 31, 2023, $nil (2022 - $22,460, 2021 - $nil) of accounts payable was settled in exchange for nil (2022 - 413,674, 2021 - nil) common shares. There was no gain or loss recognized upon settlement.

Stock options

Stock options	12 Months Ended
	Oct. 31, 2023
Stock Options [Abstract]
Stock options [Text Block]	13. Stock options (a) Under the Company’s fixed stock option plan (the “Plan”), the Company could grant up to 27,500,000 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) Number of Weighted average Outstanding at October 31, 2020 2,200,000 $ 0.10 Granted 9,500,000 0.06 Outstanding at October 31, 2021 11,700,000 $ 0.06 Granted 2,025,000 0.07 Expired (2,000,000 ) 0.07 Outstanding at October 31, 2022 11,725,000 $ 0.06 Granted 3,000,000 0.09 Expired (2,400,000 ) 0.08 Exercised (i) (2,550,000 ) 0.09 Outstanding at October 31, 2023 9,775,000 $ 0.06 (i) (c) There were 3,000,000 options issued to directors, officers, employees and consultants during the year ended October 31, 2023 (2022 - nil, 2021 - 9,500,000 options issued). Of the 3,000,000 options granted, 2,750,000 options have vested, the remaining 250,000 options vested on January 6, 2024. Weighted average Date of issue Expiry date Number of Exercise price Remaining November 13, 2020 November 13, 2025 5,750,000 $ 0.05 2.0 October 8, 2021 October 8, 2026 1,000,000 0.07 2.9 December 15, 2021 December 15, 2023 25,000 0.07 0.1 March 20, 2023 March 20, 2028 2,000,000 0.07 4.4 April 6, 2023 April 6, 2024 1,000,000 0.12 0.4 Outstanding at October 31, 2023 9,775,000 $ 0.06 2.4 Of the total options outstanding, 9,525,000 are exercisable as at October 31, 2023 (2022 - 10,225,000). (d) The fair value of the stock options issued has been determined in accordance with the Black Scholes option-pricing model. Volatility was estimated using the historical volatility of the Company's stock prices for its common shares. The underlying assumptions are as follows: 2023 2022 2021 Share price at grant date $0.07 - $0.12 $0.03 - $0.05 $0.05 Exercise price $0.07 - $0.12 $0.07 $0.05 - 0.07 Volatility factor 175% - 184% 212% - 272% 148% - 180% Risk free interest rate 2.79% - 3.58% 0.97% - 4.33% 0.75% Expected life of options in years 1 - 5 1 - 2 5 Expected divided yield 0% 0% 0% Forfeiture rate 0% 0% 0% Weighted average Black Scholes value at grant date $0.06 - $0.08 $0.02 - $0.03 $0.05 - $0.06 During the year ended October 31, 2023, the Company recorded an expense of $217,965 related to the vesting of stock options (2022 - $41,484, 2021 - $360,044).

Loss per share

Loss per share	12 Months Ended
	Oct. 31, 2023
Earnings per share [abstract]
Loss per share [Text block]	14. Loss per share Basic and diluted loss per share are calculated using the following numerators and denominators: 2023 2022 2021 Numerator Net loss attributable to common shareholders and used in computation of basic and diluted loss per share $ (2,691,670 ) $ (2,287,095 ) $ (1,012,978 ) Denominator Weighted average number of common shares for computation of basic and diluted loss per share 490,310,376 451,177,796 422,613,046 For the years ended October 31, 2023, 2022 and 2021, all stock options and conversion features were anti-dilutive and, therefore, are excluded from the calculation of diluted loss per share.

Income taxes

Income taxes	12 Months Ended
	Oct. 31, 2023
Major components of tax expense (income) [abstract]
Income taxes [Text Block]	15. Income taxes (a) 2023 2022 2021 Loss before income taxes $ (2,691,670 ) $ (2,287,095 ) $ (1,012,978 ) 26.5% 26.5% 26.5% Expected income tax recovery $ (713,293 ) $ (606,080 ) $ (268,439 ) Accretion expense and loss (gain) on convertible debentures and derivative liabilities 283,688 269,531 (97,480 ) Stock-based compensation 57,761 10,992 95,412 Non-deductible (non-taxable) expenses and other items (13,660 ) (3,780 ) 82,530 Effect of changes in exchange rates 74,714 940,577 (644,649 ) Change in deferred tax assets not recognized 310,790 (611,240 ) 832,626 $ - $ - $ - (b) 2023 2022 2021 Non-capital losses $ 8,833,940 $ 8,485,255 $ 8,924,982 159,671 162,275 178,808 Property, equipment, patents and deferred costs 1,605,743 1,639,306 1,794,285 $ 10,599,354 $ 10,286,836 $ 10,898,075 Deferred tax asset not recognized (10,599,354 ) (10,286,836 ) (10,898,075 ) $ - $ - $ - As at October 31, 2023 and 2022, 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. (c) Canada United States Total 2026 $ 1,731,988 $ - $ 1,731,988 2027 1,456,466 - 1,456,466 2028 - - - 2029 1,492,685 143,721 1,636,406 2030 2,014,021 1,880,897 3,894,918 2031 1,213,385 18,526 1,231,911 2032 1,344,746 325,793 1,670,539 2033 1,629,964 157,463 1,787,427 2034 2,358,006 679,089 3,037,095 2035 2,664,751 570,901 3,235,652 2036 3,127,236 441,019 3,568,255 2037 2,503,443 232,714 2,736,157 2038 1,692,420 317 1,692,737 2039 1,513,943 - 1,513,943 2040 509,976 - 509,976 2041 883,620 - 883,620 2042 1,254,159 - 1,254,159 2043 1,494,374 - 1,494,374 $ 28,885,183 $ 4,450,440 $ 33,335,623 (d)

Operating expenses

Operating expenses	12 Months Ended
	Oct. 31, 2023
Disclosure Of Operating Expenses [Abstract]
Operating expenses [Text Block]	16. Operating expenses (a) The components of general and administration expenses are as follows: Notes 2023 2022 2021 General and administration $ 70,584 $ 59,938 $ 86,186 Rent and occupancy 8 (b) 17,663 50,907 15,536 Office insurance 1,930 1,696 753 Investor relations, listing and filing fees 52,756 64,769 53,029 Telephone 5,683 8,056 - $ 148,616 $ 185,366 $ 155,504 (i) The Government of Canada announced the Canada Emergency Rent Subsidy (CERS) to support eligible businesses by covering part of their commercial rent or property expenses. For the year ended October 31, 2023, the Company recognized $nil (2022 - $nil, 2021 - $38,440 CDN ($30,613 USD)) of rent subsidy under this program, which has been recorded as a reduction of rent and occupancy expenses in the consolidated statements of operations and comprehensive loss. This program ran from September 27, 2020 to October 23, 2021. (b) The components of professional, other fees and salaries expenses are as follows: 2023 2022 2021 Professional fees $ 144,244 $ 110,933 $ 107,554 Consulting fees 67,664 69,563 132,793 Salaries and benefits 398,144 467,214 184,138 $ 610,052 $ 647,710 $ 424,485 (i) The Canada Emergency Wage Subsidy (CEWS) was announced by the Government of Canada on March 27, 2020 to enable companies negatively impacted by COVID-19 to re-hire workers. Under this program, qualifying business can receive a subsidy for a portion of their employees' wages. For the year ended October 31, 2023, the Company recognized $nil (2022 - $nil, 2021 - $167,388 CDN ($133,699 USD)) of wage subsidy under this program, which has been recorded as a reduction of salaries expenses in the consolidated statements of operations and comprehensive loss. This program concluded on October 23, 2021.

Supplemental cash flow informat

Supplemental cash flow information	12 Months Ended
	Oct. 31, 2023
Supplemental Cash Flow Informations Abstract
Supplemental cash flow information [Text Block]	17. Supplemental cash flow information The following provides a reconciliation of the cash flows from convertible debentures and derivative liabilities: Years ended October 31, 2023 2022 2021 Balance - beginning of year $ 4,433,363 $ 3,239,483 $ 3,615,080 Cash flows from financing activities: Proceeds from issuance of convertible debentures 645,151 765,671 510,000 Repayments of convertible debentures (270,000 ) (63,490 ) (593,301 ) Non-cash changes: Accretion expense 279,834 1,179,603 1,169,921 Accrued interest on convertible debentures 471,596 368,280 408,543 Loss (gain) on repayment of convertible debentures 27,243 (47,877 ) - Loss on conversion of convertible debentures 21,120 94,326 - Gain on revaluation of derivative liabilities (658,503 ) (409,607 ) (2,547,192 ) Loss on extinguishment of debt 1,400,823 200,650 1,018,928 Convertible debentures converted into common shares (1,656,422 ) (764,432 ) (521,136 ) Renewal of convertible debentures - - (16,804 ) Foreign exchange (gain) loss (66,753 ) (129,244 ) 195,444 Balance - end of year $ 4,627,452 $ 4,433,363 $ 3,239,483

Key management compensation and

Key management compensation and related party transactions	12 Months Ended
	Oct. 31, 2023
Disclosure of transactions between related parties [abstract]
Key management compensation and related party transactions [Text Block]	18. 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) is summarized as follows: 2023 2022 2021 Professional, other fees, and salaries $ 214,914 $ 133,517 $ 107,201 Stock-based compensation 82,946 - 227,500 $ 297,860 $ 133,517 $ 334,701 During the year ended October 31, 2023, key management were awarded 1,340,000 options as part of the total 3,000,000 issued (October 31, 2022 - nil). During the year ended October 31, 2021, the Company awarded 5,000,000 stock options to key management as part of the total 9,500,000 stock options issued. (b) In 2021, the Company reversed certain amounts totalling $422,982 due to the payables being statute barred. These balances carried forward from prior years and the Company derecognized these balances during the year ended October 31, 2021. Included in accounts payable at October 31, 2023 is $nil payable to a corporation controlled by an officer of the Company (2022 - $5,650 CAD (USD - $4,139)). In addition, at October 31, 2023, accounts payable includes $2,173 payable to a director (2022 - $nil).

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Oct. 31, 2023
Disclosure Of Contingencies [Abstract]
Commitments and Contingencies [Text Block]	19. Commitments and Contingencies (a) (b) On April 29, 2021 the matter was resolved in Micromem’s favor when the Court dismissed Mr. Van Fleet’s claims and ruled that he was liable to the Company and to MAST on their counterclaims. On June 16, 2021, the Court ruled that Micromem and MAST had established damages totaling $765,579 representing the full amount that had been requested; furthermore, the Court awarded costs and statutory prejudgment interest from May 9, 2017. On June 29, 2021 the Court entered a judgement in favor of Micromem and MAST for a total amount of $1,051,739. With respect to the Company's efforts to collect on that Judgement, a settlement ("Settlement") was reached during October 2021. Pursuant to the Settlement, the Company received an initial one-time payment and is entitled to additional monthly payments over a period of up to six years. The Company will record those payments as and when they are received. The total amount to be received by the Company if Mr. Van Fleet makes all the required payments under the terms of the Settlement will be less than the amount of the Judgement obtained by the Company, but if Mr. Van Fleet does not comply with the terms of the Settlement, it also provides the Company a means of enforcing a larger judgement against Mr. Van Fleet that is substantially in line with the Judgement. Mr. Van Fleet has made the prescribed monthly payments each month since October 2021. The Company reports the recovery of this contingent asset as funds are received. In the year ended October 31, 2023 the Company has recorded a recovery of $23,555 as a reduction of legal expenses (October 31, 2022 - $9,040, October 31, 2021 - $40,000). At October 31, 2023, $11,705 of the recovery is recorded as other receivable on the consolidated statement of financial position (2022 - $nil). (c) (d) During the year ended October 31, 2023, the Company received total advances of $63,000 from the Parties and has paid $63,000 to a third party for the construction of the hardware equipment. The Company has recorded the total advances as a deposit liability and the third party payments as a prepaid expense on the consolidated statement of financial position. At October 31, 2023 the Company is committed to a further $63,000 payment related to the construction of the hardware equipment.

Financial risk management

Financial risk management	12 Months Ended
	Oct. 31, 2023
Disclosure Of Financial Risk Management [Abstract]
Financial risk management [Text Block]	20. 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 (CAD). The Company manages currency risk by monitoring the Canadian dollar position of these monetary financial instruments on a periodic basis throughout the course of the reporting period. As at October 31, 2023, and October 31, 2022, balances that are denominated in CAD are as follows: As at October 31, As at October 31, 2023 2022 CAD CAD Cash $ 38,444 $ 15,715 Other receivables $ 29,080 $ 13,832 Trade payables and other liabilities $ 290,311 $ 393,978 Convertible debentures $ 2,544,289 $ 2,810,362 Debenture payable $ 52,031 $ 51,500 Derivative liabilities $ 1,087,044 $ 601,696 Long-term loan $ 60,000 $ 60,000 A 10% strengthening of the US dollar against the CDN dollar would decrease net loss and comprehensive loss by $260,000 as at October 31, 2023 (October 31, 2022 - decrease net loss and comprehensive loss by $257,995). A 10% weakening of the USD against the CDN would have 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) 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. The Company has exposure to credit risk from its cash and receivables. The maximum exposure to credit risk is the carrying value of these financial assets, which amounted to $43,289 as at October 31, 2023 (October 31, 2022 - $33,227). The risk for cash is mitigated by holding these balances with with central banks and financial institution counterparties that are highly rated. The Company therefore does not expect any credit losses on its cash. The risk of credit loss on receivable is substantially mitigated by assessing the credit quality of counterparties, taking into account their financial position, past experience and other factors. Management actively monitors the Company’s exposure to credit risk under its financial instruments, including with respect to other receivables. (d) 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. With the exception of the long-term loan, all financial liabilities are due within 1 year as at October 31, 2023. (i) The following represents an analysis of the maturity of trade payables: As at October 31, As at October 31, 2023 2022 Less than 30 days past billing date $ 209,285 $ 287,575 $ 209,285 $ 287,575 (ii) The following represents an analysis of the maturity of the convertible debentures and derivative liabilities: As at October 31, As at October 31, 2023 2022 Convertible Debenture Convertible Debenture Less than three months $ 2,451,614 $ 37,509 $ 2,445,107 $ - Three to six months $ 1,038,355 $ - 1,235,836 - Six to twelve months $ 433,815 $ - 446,635 38,001 $ 3,923,784 $ 37,509 $ 4,127,578 $ 38,001

Capital risk management

Capital risk management	12 Months Ended
	Oct. 31, 2023
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) maintain its ongoing operations. The Company defines its capital as its net assets, i.e. total assets less total liabilities. In order to secure the additional capital necessary to pursue these objectives, the Company may attempt to raise additional funds through the issuance of equity or convertible debentures or by securing strategic partners. The Company is not subject to externally imposed capital requirements and there has been no change with respect to the overall capital risk management strategy during the year ended October 31, 2023.

Subsequent events

Subsequent events	12 Months Ended
	Oct. 31, 2023
Disclosure of non-adjusting events after reporting period [abstract]
Subsequent events [Text Block]	22. Subsequent events Subsequent to October 31, 2023: (a) (b) (c) (d) (e) (f) (g)

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Oct. 31, 2023
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, expenses, and cash flows, are translated into USD using average exchange rates for the year. 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) All financial instruments are initially recorded at fair value at the time they are entered into. The Company aggregates its financial instruments in accordance with IFRS 9, Financial Instruments, into classes based on their nature and characteristics. Management determines the classification when the instruments are initially recognized, which is normally the date of the transaction. The Company's accounting policy for each class of financial instruments is 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, and financial liabilities which are not required, and for which the Company has not elected to subsequently record at fair value through profit or loss. Financial instruments in this category are initially recognized at fair value plus directly attributable transaction costs. Subsequently, these instruments are measured at amortized cost using the effective interest method. The effective interest method is a method of calculating the amortized cost of a financial instrument and of allocating interest over the relevant period. The effective interest rate is the rate that discounts estimated future cash receipts through the expected life of the financial instrument, or, where appropriate, a shorter period, to the net carrying amount on initial recognition. Financial assets are adjusted for any expected credit losses (“ECLs”). Financial assets in this category include cash and other receivables. Financial liabilities in this category include trade payables and other liabilities, debenture payable, convertible debentures and long-term loan. (ii) This category includes derivative instruments and 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 contractual cash flows and sell. These financial instruments are initially recognized at fair value; all transaction costs are recognized immediately in profit or loss. Subsequently, these instruments are recognized at fair value at each reporting date. Any changes in fair value, and gains or losses upon disposition of the financial instruments are recognized in profit or loss. Financial liabilities in this category include the derivative liabilities. (iii) This category only includes equity instruments, which the Company intends to hold for the foreseeable future and which the Company has irrevocably elected to so classify upon initial recognition or transition. Equity instruments in this category are subsequently measured at fair value with changes recognized in other comprehensive income, with no recycling of gains or losses to profit or loss upon derecognition. Dividend income is recognized in earnings. Equity instruments at FVOCI are not subject to an impairment assessment under IFRS 9. The Company has no financial assets in this category.
Convertible debentures and derivative liabilities [Policy Text Block]	(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) 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 are allocated to the derivative liability and host contract in proportion to their initial carrying amounts. (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 at the original effective interest rate under the new terms is at least 10% different from the discounted present value of the remaining cash flows of the original financial liability. For a modification that does not result in derecognition, a gain or loss will be recognised in profit or loss for the difference between the original contractual cash flows and the modified cash flows discounted at the original effective interest rate. For a modification that results in derecognition, a gain or loss will be recognised in profit or loss for the difference between the carrying amount of the financial liability extinguished and the fair value of the modified financial liability.
Fair value [Policy Text Block]	(d) Fair value is the price that would be received to sell an asset, or paid to transfer a liability, in an orderly transaction between market participants at the measurement date. Fair value measurement for financial instruments are categorized into levels within a fair value hierarchy based on the nature of the valuation inputs (Levels 1, 2 or 3). The three levels are defined based on the observability of significant inputs to the measurement, as follows: 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. When one is available, the Company measures the fair value of an instrument using the quoted price in an active market for that instrument. A market is regarded as “active” if transactions for the asset or liability take place with sufficient frequency and volume to provide pricing information on an ongoing basis. If there is no quoted price in an active market, then the Company uses valuation techniques that maximize the use of relevant observable inputs and minimize the use of unobservable inputs. The chosen valuation technique incorporates all of the factors that market participants would take into account in pricing a transaction. The derivative liabilities are measured at fair value on a recurring basis and categorized as level 2 in the fair value hierachy. The fair value of the derivative liabilities at October 31, 2023 is $1,079,393 (2022 - $641,299). See Note 11 (c). 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 years ended October 31, 2023 and 2022, there were no transfers between levels.
Property and equipment [Policy Text Block]	(e) Property and equipment are recorded at cost and are depreciated over their estimated useful lives at the following annual rates and methods: Method Rate Computers Declining balance 30% Right-of-use asset Straight-line lesser of useful life and lease term (three years)
Impairment of long-lived assets [Policy Text Block]	(f) The Company follows the guidelines prescribed in IAS 36, Impairment of Assets 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 operations and comprehensive loss.
Development costs [Policy Text Block]	(g) 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. Costs to be recovered from development partners are recorded to development costs receivable. Payments received from development partners on projects are recorded to income as a recovery of costs incurred and reduce the outstanding receivable. There were no development costs incurred or recovery of such costs in 2023, 2022, or 2021.
Patents [Policy Text Block]	(h) Patents are recorded at cost and are amortized on a straight line basis over their estimated useful lives of 5 years.
Leases [Policy Text Block]	(i) As a lessee At the inception of a contract, the Company assesses whether a contract is, or contains a lease. A contract is, or contains a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. The Company recognizes a right-of-use asset and a lease liability at the commencement date of the lease. The right-of-use asset is initially measured at cost, which comprises the initial amount of the lease liability adjusted for any lease payments made at or before the commencement date, plus any initial direct costs incurred and an estimate of costs to dismantle and remove the underlying asset, less any lease incentives received. The right-of-use asset is subsequently depreciated using the straight-line method from the commencement date to the earlier of the end of the useful life of the right-of-use asset or the end of the lease term. In addition, the right-of-use assets are adjusted for impairment losses, if any. The estimated useful lives and recoverable amounts of right-of-use assets are determined on the same basis as those of property and equipment. The lease liability is initially measured at the present value of the lease payments that are not paid at the commencement date, discounted using the interest rate implicit in the lease or, if that rate cannot be readily determined, the Company's incremental borrowing rate currently set at 9%. The lease liability is subsequently measured at amortized cost using the effective interest method. The Company has elected not to recognize right-of-use assets and lease liabilities for short-term leases (lease term of 12 months or less) and leases for which the underlying asset is of low value as there are none. The Company recognizes the lease payments associated with these leases as an expense on a straight-line basis over the lease term. As a lessor As a lessor, the Company classifies its leases as either a finance lease or an operating lease. To classify each lease, the Company makes an overall assessment of whether the lease transfers substantially all of the risks and rewards incidental to ownership of the underlying asset. If this is the case, then the lease is a finance lease; if not, then it is an operating lease. Rental income arising from operating leases is accounted on a straight-line basis over the lease term.
Stock-based compensation and other stock-based payments [Policy Text Block]	(j) 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 is 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.
Government grants [Policy Text Block]	(k) The Company recognises government grants when there is reasonable assurance of compliance with grant conditions and that the grants will be received. Government grants are recognised in profit or loss on a systematic basis over the periods when the related expenses are incurred and are presented in the consolidated financial statements as a reduction of these expenses. A government grant that becomes receivable as compensation for expenses already incurred is recognised in profit or loss of the period in which it becomes receivable.
Provisions [Policy Text Block]	(l) 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.
Income taxes [Policy Text Block]	(m) 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.
Share capital [Policy Text Block]	(n) Share capital is presented at the fair value of the shares issued or the cash amount received. 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]	(o) 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.

Property and equipment (Tables)

Property and equipment (Tables)	12 Months Ended
	Oct. 31, 2023
Property and equipment [Abstract]
Disclosure of detailed information about property plant and equipment [Table Text Block]	As at Additions Disposals Foreign As at Cost Computers $ 7,466 $ 2,044 $ - $ - $ 9,510 Right-of-use assets 48,408 - - - 48,408 55,874 2,044 - - 57,918 Accumulated depreciation Computers 3,748 1,148 $ - $ 85 $ 4,981 Right-of-use assets 4,034 15,344 - 792 20,170 7,782 16,492 - 877 25,151 Net book value $ 48,092 $ 32,767 As at Additions Disposals Foreign As at Cost Computers $ 18,570 $ - $ (11,104 ) $ - $ 7,466 Right-of-use assets 74,307 48,408 (74,307 ) - 48,408 92,877 48,408 (85,411 ) - 55,874 A ccumulated depreciation Computers 12,824 1,723 (10,799 ) - 3,748 Right-of-use assets 54,041 24,155 (74,162 ) - 4,034 66,865 25,878 (84,961 ) - 7,782 Net book value $ 26,012 $ 48,092

Patents (Tables)

Patents (Tables)	12 Months Ended
	Oct. 31, 2023
Intangible assets and goodwill [abstract]
Disclosure of detailed information about patents [Table Text Block]	As at November 1, As at October 31, 2022 Additions Disposals 2023 Cost $ 681,288 $ - $ - $ 681,288 Accumulated amortization 681,288 - - 681,288 Net book value $ - $ - $ - $ - As at November 1, As at October 31, 2021 Additions Disposals 2022 Cost $ 681,288 $ - $ - $ 681,288 Accumulated amortization 677,411 3,877 - 681,288 Net book value $ 3,877 $ (3,877 ) $ - $ -

Leases (Tables)

Leases (Tables)	12 Months Ended
	Oct. 31, 2023
Disclosure of quantitative information about leases for lessee [abstract]
Disclosure of continuity schedule of lease obligation [Table Text Block]	Balance, October 31, 2020 $ 52,070 Interest expense 9,160 Lease payments (36,442 ) Balance, October 31, 2021 $ 24,788 New lease agreement 48,408 Interest expense 3,629 Lease payments (28,946 ) Foreign exchange (3,095 ) Balance, October 31, 2022 44,784 Interest expense 3,323 Lease payments (18,932 ) Foreign exchange (121 ) Balance, October 31, 2023 $ 29,054
Disclosure of maturity analysis of lease obligations [Table Text Block]	USD Less than one year $ 18,822 Between one and five years $ 12,756
Disclosure of maturity analysis of lease payments as a lessor [Table Text Block]	USD Less than one year $ 17,626 Between one and five years $ 14,593

Convertible debentures (Tables)

Convertible debentures (Tables)	12 Months Ended
	Oct. 31, 2023
Borrowings [abstract]
Disclosure of detailed information about convertible debentures outstanding [Table Text Block]	Convertible debentures outstanding as at October 31, 2023: USD (equity CAD (embedded USD (embedded Total Loan principal outstanding $ 1,261,265 $ 2,146,715 $ 405,001 Terms of loan Annual stated interest rate 24% 12% - 24% 2% - 4% Effective annual interest rate 24% 22 - 131% 24% - 5158% Conversion price to common shares $ 0.03 - $0.04 $ 0.05 - $0.10 (i) - (ii) Remaining life (in months) 0 - 4 0 - 11 0 - 11 Consolidated Statement of Financial Position Carrying value of loan principal $ 1,261,265 $ 1,499,667 $ 77,238 $ 2,838,170 Interest payable 344,993 334,511 30,385 709,889 Convertible debentures $ 1,606,258 $ 1,834,178 $ 107,623 $ 3,548,059 Derivative liabilities $ - $ 783,650 $ 295,743 $ 1,079,393 Equity component of convertible debentures $ 3,220,473 $ - $ - $ 3,220,473 For the year ended October 31, 2023: USD (equity CAD (embedded USD (embedded Total Consolidated Statement of Operations and Comprehensive Loss Accretion expense $ 18,258 $ 243,162 $ 18,414 $ 279,834 Interest expense $ 273,458 $ 254,523 $ 12,948 $ 540,929 Gain on revaluation of derivative liabilities $ - $ (507,186 ) $ (151,317 ) $ (658,503 ) Loss on conversion of convertible debentures $ - $ - $ 21,120 $ 21,120 Loss on repayment of convertible debentures $ - $ - $ 27,243 $ 27,243 (Gain) loss on extinguishment of convertible debentures $ 33,488 $ 1,169,800 $ 197,535 $ 1,400,823 Consolidated Statement of Changes in Equity Amount of principal converted to common shares $ 250,000 $ 455,000 $ 232,700 Amount of interest converted to common shares $ 30,016 $ 204,189 $ 4,654 Number of common shares issued on conversion of convertible debentures 6,406,250 14,391,709 9,548,701 30,346,660 (a) USD (equity CAD (embedded USD (embedded Total Consolidated Statement of Cash Flows Amount of principal repaid in cash $ - $ - $ 270,000 $ 270,000 Amount of interest repaid in cash $ 12,973 $ 47,353 $ 4,353 $ 64,679 (i) (ii) (b) Convertible debentures outstanding as at October 31, 2022: USD (equity CAD (embedded USD (embedded Total Loan principal outstanding $ 1,205,144 $ 2,321,755 $ 347,700 Terms of loan Annual stated interest rate 12% - 24% 12% - 24% 2% - 4% Effective annual interest rate 24% 22 - 131% 24% - 5803% Conversion price to common shares $0.03 - $0.07 $0.05 - $0.08 (i) - (ii) Remaining life (in months) 0 - 6 0 - 10 0 - 11 Consolidated Statement of Financial Position Carrying value of loan principal $ 1,203,478 $ 1,661,742 $ 130,424 $ 2,995,644 Interest payable 380,360 389,617 26,443 796,420 Convertible debentures $ 1,583,838 $ 2,051,359 $ 156,867 $ 3,792,064 Derivative liabilities $ - $ 439,194 $ 202,105 $ 641,299 Equity component of convertible debentures $ 793,140 $ - $ - $ 793,140 (i) (ii) For the year ended October 31, 2022: USD (equity CAD (embedded USD (embedded Total Consolidated Statement of Operations and Comprehensive Loss Accretion expense $ 28,000 $ 1,086,385 $ 65,218 $ 1,179,603 Interest expense $ 230,058 $ 232,211 $ 7,156 $ 469,425 Gain on revaluation of derivative liabilities $ - $ (379,736 ) $ (29,871 ) $ (409,607 ) Loss on conversion of convertible debentures $ - $ - $ 94,326 $ 94,326 Gain on repayment of convertible debentures $ - $ (661 ) $ (47,216 ) $ (47,877 ) (Gain) loss on extinguishment of convertible debentures $ (28,007 ) $ 99,078 $ 129,579 $ 200,650 (b) USD (equity CAD (embedded USD (embedded Total Consolidated Statement of Changes in Equity Amount of principal converted to common shares $ - $ - $ 712,100 Amount of interest converted to common shares $ - $ - $ 12,680 Number of common shares issued on conversion of convertible debentures - - 26,443,820 26,443,820 Consolidated Statement of Cash Flows Amount of principal repaid in cash $ - $ 7,490 $ 56,000 $ 63,490 Amount of interest repaid in cash $ 14,941 $ 73,524 $ - $ 88,465 For the year ended October 31, 2021: USD (equity CAD (embedded USD (embedded Total Consolidated Statement of Operations and Comprehensive Loss Accretion expense $ 28,001 $ 1,003,613 $ 138,307 $ 1,169,921 Interest expense $ 236,519 $ 226,520 $ 32,770 $ 495,809 (Gain) loss on revaluation of derivative liabilities $ - $ (2,718,409 ) $ 171,217 $ (2,547,192 ) (Gain) loss on conversion of convertible debentures $ - $ (47,356 ) $ 37,850 $ (9,506 ) (Gain) loss on extinguishment of convertible debentures $ - $ 1,360,536 $ (341,608 ) $ 1,018,928 Consolidated Statement of Changes in Equity Amount of principal converted to common shares $ - $ 100,000 $ 284,000 Amount of interest converted to common shares $ 30,200 $ 160,064 $ 6,700 Number of common shares issued on conversion of convertible debentures 1,118,519 7,744,774 6,748,559 15,611,852 Consolidated Statement of Cash Flows Amount of principal repaid in cash $ 205,100 $ 31,492 $ 364,370 $ 600,962 Amount of interest repaid in cash $ 25,101 $ 36,052 $ 26,113 $ 87,266 (c)
Disclosure of detailed information about assumptions used to determine fair value of derivative liabilities [Table Text Block]	As at October 31, As at October 31, 2023 2022 Share price $0.05 $0.03 Exercise price $0.03 - $0.07 $0.02 - $0.07 Volatility factor (based on historical volatility) 114% - 189% 140% - 232% Risk free interest rate 5.11% - 5.48% 3.09% - 4.28% Expected life of conversion features (in months) 0 - 11 0 - 11 Expected dividend yield 0% 0% CDN to USD exchange rate (as applicable) 0.7209 0.7299 Call value $0.01 - $0.08 $0.00 - $0.02

Stock options (Tables)

Stock options (Tables)	12 Months Ended
	Oct. 31, 2023
Notes to Financial Statements [Abstract]
Disclosure of number and weighted average exercise prices of share options [Table Text Block]	Number of Weighted average Outstanding at October 31, 2020 2,200,000 $ 0.10 Granted 9,500,000 0.06 Outstanding at October 31, 2021 11,700,000 $ 0.06 Granted 2,025,000 0.07 Expired (2,000,000 ) 0.07 Outstanding at October 31, 2022 11,725,000 $ 0.06 Granted 3,000,000 0.09 Expired (2,400,000 ) 0.08 Exercised (i) (2,550,000 ) 0.09 Outstanding at October 31, 2023 9,775,000 $ 0.06
Disclosure of detailed information about options, valuation assumptions [Table Text Block]	Weighted average Date of issue Expiry date Number of Exercise price Remaining November 13, 2020 November 13, 2025 5,750,000 $ 0.05 2.0 October 8, 2021 October 8, 2026 1,000,000 0.07 2.9 December 15, 2021 December 15, 2023 25,000 0.07 0.1 March 20, 2023 March 20, 2028 2,000,000 0.07 4.4 April 6, 2023 April 6, 2024 1,000,000 0.12 0.4 Outstanding at October 31, 2023 9,775,000 $ 0.06 2.4
Disclosure of number and weighted average remaining contractual life of outstanding share options [Table Text Block]	2023 2022 2021 Share price at grant date $0.07 - $0.12 $0.03 - $0.05 $0.05 Exercise price $0.07 - $0.12 $0.07 $0.05 - 0.07 Volatility factor 175% - 184% 212% - 272% 148% - 180% Risk free interest rate 2.79% - 3.58% 0.97% - 4.33% 0.75% Expected life of options in years 1 - 5 1 - 2 5 Expected divided yield 0% 0% 0% Forfeiture rate 0% 0% 0% Weighted average Black Scholes value at grant date $0.06 - $0.08 $0.02 - $0.03 $0.05 - $0.06

Loss per share (Tables)

Loss per share (Tables)	12 Months Ended
	Oct. 31, 2023
Earnings per share [abstract]
Disclosure of detailed information about basic and diluted loss per share [Table Text Block]	2023 2022 2021 Numerator Net loss attributable to common shareholders and used in computation of basic and diluted loss per share $ (2,691,670 ) $ (2,287,095 ) $ (1,012,978 ) Denominator Weighted average number of common shares for computation of basic and diluted loss per share 490,310,376 451,177,796 422,613,046

Income taxes (Tables)

Income taxes (Tables)	12 Months Ended
	Oct. 31, 2023
Notes to Financial Statements [Abstract]
Disclosure of detailed information about effective income tax expense (recovery) [Table Text Block]	2023 2022 2021 Loss before income taxes $ (2,691,670 ) $ (2,287,095 ) $ (1,012,978 ) 26.5% 26.5% 26.5% Expected income tax recovery $ (713,293 ) $ (606,080 ) $ (268,439 ) Accretion expense and loss (gain) on convertible debentures and derivative liabilities 283,688 269,531 (97,480 ) Stock-based compensation 57,761 10,992 95,412 Non-deductible (non-taxable) expenses and other items (13,660 ) (3,780 ) 82,530 Effect of changes in exchange rates 74,714 940,577 (644,649 ) Change in deferred tax assets not recognized 310,790 (611,240 ) 832,626 $ - $ - $ -
Disclosure of deferred taxes [Table Text Block]	2023 2022 2021 Non-capital losses $ 8,833,940 $ 8,485,255 $ 8,924,982 159,671 162,275 178,808 Property, equipment, patents and deferred costs 1,605,743 1,639,306 1,794,285 $ 10,599,354 $ 10,286,836 $ 10,898,075 Deferred tax asset not recognized (10,599,354 ) (10,286,836 ) (10,898,075 ) $ - $ - $ -
Disclosure of unused tax losses [Table Text Block]	Canada United States Total 2026 $ 1,731,988 $ - $ 1,731,988 2027 1,456,466 - 1,456,466 2028 - - - 2029 1,492,685 143,721 1,636,406 2030 2,014,021 1,880,897 3,894,918 2031 1,213,385 18,526 1,231,911 2032 1,344,746 325,793 1,670,539 2033 1,629,964 157,463 1,787,427 2034 2,358,006 679,089 3,037,095 2035 2,664,751 570,901 3,235,652 2036 3,127,236 441,019 3,568,255 2037 2,503,443 232,714 2,736,157 2038 1,692,420 317 1,692,737 2039 1,513,943 - 1,513,943 2040 509,976 - 509,976 2041 883,620 - 883,620 2042 1,254,159 - 1,254,159 2043 1,494,374 - 1,494,374 $ 28,885,183 $ 4,450,440 $ 33,335,623

Operating expenses (Tables)

Operating expenses (Tables)	12 Months Ended
	Oct. 31, 2023
Disclosure Of Operating Expenses [Abstract]
Disclosure of detailed information about components of general and administrative expenses [Table Text Block]	Notes 2023 2022 2021 General and administration $ 70,584 $ 59,938 $ 86,186 Rent and occupancy 8 (b) 17,663 50,907 15,536 Office insurance 1,930 1,696 753 Investor relations, listing and filing fees 52,756 64,769 53,029 Telephone 5,683 8,056 - $ 148,616 $ 185,366 $ 155,504
Disclosure of detailed information about components of professional, other fees and salaries [Table Text Block]	2023 2022 2021 Professional fees $ 144,244 $ 110,933 $ 107,554 Consulting fees 67,664 69,563 132,793 Salaries and benefits 398,144 467,214 184,138 $ 610,052 $ 647,710 $ 424,485

Supplemental cash flow inform_2

Supplemental cash flow information (Tables)	12 Months Ended
	Oct. 31, 2023
Supplemental Cash Flow Informations Abstract
Disclosure of reconciliation of cash flows [Table Text Block]	Years ended October 31, 2023 2022 2021 Balance - beginning of year $ 4,433,363 $ 3,239,483 $ 3,615,080 Cash flows from financing activities: Proceeds from issuance of convertible debentures 645,151 765,671 510,000 Repayments of convertible debentures (270,000 ) (63,490 ) (593,301 ) Non-cash changes: Accretion expense 279,834 1,179,603 1,169,921 Accrued interest on convertible debentures 471,596 368,280 408,543 Loss (gain) on repayment of convertible debentures 27,243 (47,877 ) - Loss on conversion of convertible debentures 21,120 94,326 - Gain on revaluation of derivative liabilities (658,503 ) (409,607 ) (2,547,192 ) Loss on extinguishment of debt 1,400,823 200,650 1,018,928 Convertible debentures converted into common shares (1,656,422 ) (764,432 ) (521,136 ) Renewal of convertible debentures - - (16,804 ) Foreign exchange (gain) loss (66,753 ) (129,244 ) 195,444 Balance - end of year $ 4,627,452 $ 4,433,363 $ 3,239,483

Key management compensation a_2

Key management compensation and related party transactions (Tables)	12 Months Ended
	Oct. 31, 2023
Disclosure of transactions between related parties [abstract]
Disclosure of key management compensation [Table Text Block]	2023 2022 2021 Professional, other fees, and salaries $ 214,914 $ 133,517 $ 107,201 Stock-based compensation 82,946 - 227,500 $ 297,860 $ 133,517 $ 334,701

Financial risk management (Tabl

Financial risk management (Tables)	12 Months Ended
	Oct. 31, 2023
Disclosure Of Financial Risk Management [Abstract]
Disclosure of detailed information about foreign exchange risk [Table Text Block]	As at October 31, As at October 31, 2023 2022 CAD CAD Cash $ 38,444 $ 15,715 Other receivables $ 29,080 $ 13,832 Trade payables and other liabilities $ 290,311 $ 393,978 Convertible debentures $ 2,544,289 $ 2,810,362 Debenture payable $ 52,031 $ 51,500 Derivative liabilities $ 1,087,044 $ 601,696 Long-term loan $ 60,000 $ 60,000
Disclosure of detailed information about maturity of trade payables [Table Text Block]	As at October 31, As at October 31, 2023 2022 Less than 30 days past billing date $ 209,285 $ 287,575 $ 209,285 $ 287,575
Disclosure of detailed information about maturity of convertible debentures and derivative liabilities [Table Text Block]	As at October 31, As at October 31, 2023 2022 Convertible Debenture Convertible Debenture Less than three months $ 2,451,614 $ 37,509 $ 2,445,107 $ - Three to six months $ 1,038,355 $ - 1,235,836 - Six to twelve months $ 433,815 $ - 446,635 38,001 $ 3,923,784 $ 37,509 $ 4,127,578 $ 38,001

Going concern (Narrative) (Deta

Going concern (Narrative) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Going Concern [Abstract]
Net loss and comprehensive loss	$ 2,691,670	$ 2,287,095	$ 1,012,978
Negative cash flow from operations	1,083,220	997,031	$ 762,766
Working capital deficit	$ 4,818,699	$ 4,722,878

Summary of significant accoun_3

Summary of significant accounting policies (Narrative) (Details)	12 Months Ended
	Oct. 31, 2023
Patents [Member]
Disclosure Of Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	5 years

Leases (Narrative) (Details)

Leases (Narrative) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022
Disclosure of quantitative information about leases for lessee [abstract]
Lease obligation discount rate	9%
Rental income	$ 17,682	$ 19,076

Long-term loan (Narrative) (Det

Long-term loan (Narrative) (Details)	12 Months Ended
	Oct. 31, 2023 CAD ($)	Oct. 31, 2023 USD ($)	Oct. 31, 2022 CAD ($)	Oct. 31, 2022 USD ($)
Disclosure Of Detailed Information About Loan From Government [Line Items]
Long-term loan		$ 43,254		$ 43,796
Canada Emergency Business Account ("CEBA") program [Member]
Disclosure Of Detailed Information About Loan From Government [Line Items]
Long-term loan	$ 60,000	43,254	$ 60,000	$ 43,796
Early repayment amount for remaining loan forgiveness	40,000	$ 28,836
Amount of loan forgiveness if repaying balance loan before January 18, 2024	$ 20,000
Term loan interest rate per annum	5%	5%
Maturity date	The balance was not paid by January 18, 2024, and as a result, the total principal amount was subsequently converted to a 3-year term loan at 5% annual interest paid monthly, commencing January 19, 2024

Debenture payable (Narrative) (

Debenture payable (Narrative) (Details) - Debenture payable [Member]	12 Months Ended
	Oct. 31, 2023 USD ($)	Oct. 31, 2022 USD ($)	Oct. 31, 2021 USD ($)	Oct. 31, 2023 CAD ($)	Oct. 31, 2023 USD ($)	Oct. 31, 2022 CAD ($)	Oct. 31, 2022 USD ($)	Mar. 17, 2020 CAD ($)	Mar. 17, 2020 USD ($)
Disclosure of detailed information about borrowings [line items]
Debenture issued								$ 51,500	$ 37,126
Interest rate								24%	24%
Interest expense on debentures	$ 9,170	$ 9,604	$ 7,261
Debt securities outstanding amount				$ 52,031	$ 37,509	$ 52,062	$ 38,001

Convertible debentures (Narrati

Convertible debentures (Narrative) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Convertible Debentures [Abstract]
Finance costs	$ 86,352	$ 21,000	$ 84,478
Financing costs converted into common shares	$ 0	$ 0	$ 0

Share capital (Narrative) (Deta

Share capital (Narrative) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Disclosure of classes of share capital [line items]
Private placements of shares for cash	$ 509,939	$ 181,997	$ 840,564
Private placements of shares for cash (Shares)	9,864,500	5,012,450	17,573,429
Shares issued on settlement of accounts payable	$ 0	$ 22,460	$ 0
Shares issued on settlement of accounts payable (Shares)	0	413,674	0
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, 2023 USD ($) share shares	Oct. 31, 2022 USD ($) share shares	Oct. 31, 2021 USD ($) share shares $ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options to be granted	27,500,000
Stock options maximum term	10 years
Stock options granted | share	3,000,000	2,025,000	9,500,000
Share price at grant date | $ / shares			$ 0.05
Options exercised | share	2,550,000
Proceeds from exercise of options | $	$ 214,140	$ 0	$ 0
Options exercisable	9,525,000	10,225,000
Stock option expense | $	$ 217,965	$ 41,484	$ 360,044
Directors and Officers [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options granted	3,000,000	0	9,500,000
Options exercised	3,000,000
Directors and Officers [Member] | Vesting by January 11, 2023 [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options to be vested	2,750,000
Directors and Officers [Member] | Vesting by July 11, 2023 [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Stock options to be vested	250,000

Income taxes (Narrative) (Detai

Income taxes (Narrative) (Details)	12 Months Ended
	Oct. 31, 2023 USD ($)
Statements Line Items
Non-capital losses	$ 33,335,623
Capital loss carry forwards	$ 1,200,000

Operating expenses (Narrative)

Operating expenses (Narrative) (Details)	12 Months Ended
	Oct. 31, 2023 CAD ($)	Oct. 31, 2023 USD ($)	Oct. 31, 2022 CAD ($)	Oct. 31, 2022 USD ($)	Oct. 31, 2021 CAD ($)	Oct. 31, 2021 USD ($)
Disclosure Of Operating Expenses [Abstract]
Government rent subsidy		$ 0	$ 0		$ 38,440	$ 30,613
Description of wage subsidy	Under this program, qualifying business can receive a subsidy for a portion of their employees' wages.	Under this program, qualifying business can receive a subsidy for a portion of their employees' wages.
Government wage subsidy	$ 0			$ 0	$ 167,388	$ 133,699

Key management compensation a_3

Key management compensation and related party transactions (Narrative) (Details)	12 Months Ended
	Oct. 31, 2023 USD ($) share	Oct. 31, 2022 USD ($) share	Oct. 31, 2021 USD ($) share	Oct. 31, 2023 CAD ($)	Oct. 31, 2023 USD ($)	Oct. 31, 2022 CAD ($)	Oct. 31, 2022 USD ($)
Disclosure of transactions between related parties [line items]
Stock options granted | share	3,000,000	2,025,000	9,500,000
Statute barred payables | $	$ 0	$ 0	$ 422,982
Key management personnel [Member]
Disclosure of transactions between related parties [line items]
Stock options granted | share	1,340,000	0	5,000,000
Corporation controlled by an officer [Member]
Disclosure of transactions between related parties [line items]
Payables to related parties				$ 0		$ 5,650	$ 4,139
Directors [Member]
Disclosure of transactions between related parties [line items]
Payables to related parties | $					$ 2,173		$ 0

Commitments and Contingencies (

Commitments and Contingencies (Narrative) (Details) - USD ($)	1 Months Ended		12 Months Ended
	Jun. 29, 2021	Jun. 16, 2021	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Disclosure Of Contingencies [Line Items]
Legal contingency, damages sought	$ 1,051,739	$ 765,579
Accruals on counter claims			$ 23,555	$ 9,040	$ 40,000
Recovery is recorded as other receivable			11,705	$ 0
Amount received as advances from parties			63,000
Amount paid as advances to third party			63,000
Amount committed to pay related to construction of hardware equipment			$ 63,000

Financial risk management (Narr

Financial risk management (Narrative) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022
Currency risk [member]
Disclosure of detailed information about financial instruments [line items]
Sensitivity analysis, variance, percentage	10%	10%
Value at risk	$ 260,000	$ 257,995
Credit risk [Member]
Disclosure of detailed information about financial instruments [line items]
Value at risk	$ 43,289	$ 33,227

Subsequent events (Narrative) (

Subsequent events (Narrative) (Details)	1 Months Ended	2 Months Ended		12 Months Ended
	Dec. 15, 2023 share	Jan. 12, 2024 USD ($)	Jan. 01, 2024 CAD ($)	Oct. 31, 2023 USD ($) share shares	Oct. 31, 2022 USD ($) share	Oct. 31, 2021 USD ($)	Jan. 01, 2024 USD ($)
Disclosure of non-adjusting events after reporting period [line items]
Proceeds from private placements				$ 535,525	$ 207,588	$ 840,564
Convertible debentures				$ 3,548,059	$ 3,792,064
Number of stock options expired unexercised | share				2,400,000	2,000,000
Subsequent Events [Member]
Disclosure of non-adjusting events after reporting period [line items]
Proceeds from private placements				$ 113,260
Shares issued for private placement | shares				2,400,000
Repayment of interest accrued				$ 154,391
Number of stock options expired unexercised | share	25,000
Subsequent Events [Member] | Convertible Debentures [Member]
Disclosure of non-adjusting events after reporting period [line items]
Convertible debentures		$ 137,188	$ 109,900				$ 79,227
Convertible debentures, converted amount				$ 127,704
Shares issued on conversion of convertible debenture | shares				3,780,426
Repayment of interest accrued				$ 5,000
Borrowings, maturity		12 month term	12 month term
Interest rate		4%	12%				12%

Summary of significant accoun_4

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, 2023
Computers [Member]
Statements Line Items
Depreciation rate property, plant and equipment	30%
Right-of-use asset [Member]
Statements Line Items
Description of useful life property, plant and equipment	lesser of useful life and lease term (three years)

Property and equipment (Schedul

Property and equipment (Schedule of detailed information about property plant and equipment) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment at beginning of period	$ 48,092	$ 26,012
Property, plant and equipment at end of period	32,767	48,092
Cost [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment at beginning of period	55,874	92,877
Additions	2,044	48,408
Disposals	0	(85,411)
Foreign exchange	0	0
Property, plant and equipment at end of period	57,918	55,874
Accumulated amortization [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment at beginning of period	(7,782)	(66,865)
Additions	16,492	25,878
Disposals	0	84,961
Foreign exchange	877	0
Property, plant and equipment at end of period	(25,151)	(7,782)
Computers [Member] | Cost [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment at beginning of period	7,466	18,570
Additions	2,044	0
Disposals	0	(11,104)
Foreign exchange	0	0
Property, plant and equipment at end of period	9,510	7,466
Computers [Member] | Accumulated amortization [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment at beginning of period	(3,748)	(12,824)
Additions	1,148	1,723
Disposals	0	10,799
Foreign exchange	85	0
Property, plant and equipment at end of period	(4,981)	(3,748)
Right-of-use assets [member] | Cost [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment at beginning of period	48,408	74,307
Additions	0	48,408
Disposals	0	(74,307)
Foreign exchange	0	0
Property, plant and equipment at end of period	48,408	48,408
Right-of-use assets [member] | Accumulated amortization [Member]
Disclosure of detailed information about property, plant and equipment [line items]
Property, plant and equipment at beginning of period	(4,034)	(54,041)
Additions	15,344	24,155
Disposals	0	74,162
Foreign exchange	792	0
Property, plant and equipment at end of period	$ (20,170)	$ (4,034)

Patents (Schedule of patents) (

Patents (Schedule of patents) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022
Disclosure Of Information About Patents [Line Items]
Patents, beginning of period	$ 0	$ 3,877
Additions	0	(3,877)
Disposals	0	0
Patents, end of period	0	0
Cost [Member]
Disclosure Of Information About Patents [Line Items]
Patents, beginning of period	681,288	681,288
Additions	0	0
Disposals	0	0
Patents, end of period	681,288	681,288
Accumulated amortization [Member]
Disclosure Of Information About Patents [Line Items]
Patents, beginning of period	(681,288)	(677,411)
Additions	0	3,877
Disposals	0	0
Patents, end of period	$ (681,288)	$ (681,288)

Leases (Continuity schedule of

Leases (Continuity schedule of lease obligation) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Disclosure of quantitative information about leases for lessee [abstract]
Balance, Beginning	$ 44,784	$ 24,788	$ 52,070
New lease agreement	0	48,408	0
Interest expense	3,323	3,629	9,160
Lease payments	(18,932)	(28,946)	(36,442)
Foreign exchange	(121)	(3,095)
Balance, Ending	$ 29,054	$ 44,784	$ 24,788

Leases (Schedule of maturity an

Leases (Schedule of maturity analysis of lease obligations) (Details)	Oct. 31, 2023 USD ($)
Less than one year [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Undiscounted principal amount of contractual lease obligations	$ 18,822
Between one and five years [Member]
Disclosure of maturity analysis of operating lease payments [line items]
Undiscounted principal amount of contractual lease obligations	$ 12,756

Lease (Schedule of maturity ana

Lease (Schedule of maturity analysis of lease payments as a lessor) (Details)	Oct. 31, 2023 USD ($)
Less than one year [Member]
Disclosure of maturity analysis of finance lease payments receivable [line items]
Principal amount of contractual lease obligations	$ 17,626
Between one and five years [Member]
Disclosure of maturity analysis of finance lease payments receivable [line items]
Principal amount of contractual lease obligations	$ 14,593

Convertible debentures (Schedul

Convertible debentures (Schedule of detailed information about consolidated financial statements) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Consolidated Statements of Financial Position
Carrying value of loan principal	$ 2,838,170	$ 2,995,644
Interest payable	709,889	796,420
Convertible debentures	3,548,059	3,792,064
Derivative liability	1,079,393	641,299
Equity component of convertible debentures	3,220,473	793,140
Consolidated Statements of Operations and Comprehensive Loss
Accretion expense	279,834	1,179,603	$ 1,169,921
Interest expense	540,929	469,425	495,809
(Gain) loss on revaluation of derivative liabilities	(658,503)	(409,607)	(2,547,192)
(Gain) loss on conversion of convertible debentures	21,120	94,326	(9,506)
(Gain) loss on repayment of convertible debentures	27,243	(47,877)
(Gain) loss on extinguishment of convertible debentures	$ 1,400,823	$ 200,650	$ 1,018,928
Consolidated Statements of Changes in Equity
Number of common shares issued on conversion of convertible debentures	30,346,660	26,443,820	15,611,852
Consolidated Statements of Cash Flows
Amount of principal repaid in cash	$ 270,000	$ 63,490	$ 600,962
Amount of interest repaid in cash	64,679	88,465	87,266
USD denominated debentures with equity components [Member]
Loan Principal
Loan principal outstanding	$ 1,261,265	$ 1,205,144
Terms of Loan
Annual interest rate	24%
Effective annual interest rate	24%	24%
Consolidated Statements of Financial Position
Carrying value of loan principal	$ 1,261,265	$ 1,203,478
Interest payable	344,993	380,360
Convertible debentures	1,606,258	1,583,838
Derivative liability	0	0
Equity component of convertible debentures	3,220,473	793,140
Consolidated Statements of Operations and Comprehensive Loss
Accretion expense	18,258	28,000	28,001
Interest expense	273,458	230,058	236,519
(Gain) loss on revaluation of derivative liabilities	0	0	0
(Gain) loss on conversion of convertible debentures	0	0	0
(Gain) loss on repayment of convertible debentures	0	0
(Gain) loss on extinguishment of convertible debentures	33,488	(28,007)	0
Consolidated Statements of Changes in Equity
Amount of principal converted to common shares	250,000	0	0
Amount of interest converted to common shares	$ 30,016	$ 0	$ 30,200
Number of common shares issued on conversion of convertible debentures	6,406,250	0	1,118,519
Consolidated Statements of Cash Flows
Amount of principal repaid in cash	$ 0	$ 0	$ 205,100
Amount of interest repaid in cash	$ 12,973	$ 14,941	25,101
USD denominated debentures with equity components [Member] | Minimum [Member]
Terms of Loan
Annual interest rate		12%
Conversion price to common shares	$ 0.03	$ 0.03
Remaining life (in months)	0 months	0 months
USD denominated debentures with equity components [Member] | Maximum [Member]
Terms of Loan
Annual interest rate		24%
Conversion price to common shares	$ 0.04	$ 0.07
Remaining life (in months)	4 months	6 months
CAD denominated debentures with embedded derivatives [Member]
Loan Principal
Loan principal outstanding	$ 2,146,715	$ 2,321,755
Consolidated Statements of Financial Position
Carrying value of loan principal	1,499,667	1,661,742
Interest payable	334,511	389,617
Convertible debentures	1,834,178	2,051,359
Derivative liability	783,650	439,194
Equity component of convertible debentures	0	0
Consolidated Statements of Operations and Comprehensive Loss
Accretion expense	243,162	1,086,385	1,003,613
Interest expense	254,523	232,211	226,520
(Gain) loss on revaluation of derivative liabilities	(507,186)	(379,736)	(2,718,409)
(Gain) loss on conversion of convertible debentures	0	0	(47,356)
(Gain) loss on repayment of convertible debentures	0	(661)
(Gain) loss on extinguishment of convertible debentures	1,169,800	99,078	1,360,536
Consolidated Statements of Changes in Equity
Amount of principal converted to common shares	455,000	0	100,000
Amount of interest converted to common shares	$ 204,189	$ 0	$ 160,064
Number of common shares issued on conversion of convertible debentures	14,391,709	0	7,744,774
Consolidated Statements of Cash Flows
Amount of principal repaid in cash	$ 0	$ 7,490	$ 31,492
Amount of interest repaid in cash	$ 47,353	$ 73,524	36,052
CAD denominated debentures with embedded derivatives [Member] | Minimum [Member]
Terms of Loan
Annual interest rate	12%	12%
Effective annual interest rate	22%	22%
Conversion price to common shares	$ 0.05	$ 0.05
Remaining life (in months)	0 months	0 months
CAD denominated debentures with embedded derivatives [Member] | Maximum [Member]
Terms of Loan
Annual interest rate	24%	24%
Effective annual interest rate	131%	131%
Conversion price to common shares	$ 0.1	$ 0.08
Remaining life (in months)	11 months	10 months
USD denominated debentures with embedded derivatives [Member]
Loan Principal
Loan principal outstanding	$ 405,001	$ 347,700
Consolidated Statements of Financial Position
Carrying value of loan principal	77,238	130,424
Interest payable	30,385	26,443
Convertible debentures	107,623	156,867
Derivative liability	295,743	202,105
Equity component of convertible debentures	0	0
Consolidated Statements of Operations and Comprehensive Loss
Accretion expense	18,414	65,218	138,307
Interest expense	12,948	7,156	32,770
(Gain) loss on revaluation of derivative liabilities	(151,317)	(29,871)	171,217
(Gain) loss on conversion of convertible debentures	21,120	94,326	37,850
(Gain) loss on repayment of convertible debentures	27,243	(47,216)
(Gain) loss on extinguishment of convertible debentures	197,535	129,579	(341,608)
Consolidated Statements of Changes in Equity
Amount of principal converted to common shares	232,700	712,100	284,000
Amount of interest converted to common shares	$ 4,654	$ 12,680	$ 6,700
Number of common shares issued on conversion of convertible debentures	9,548,701	26,443,820	6,748,559
Consolidated Statements of Cash Flows
Amount of principal repaid in cash	$ 270,000	$ 56,000	$ 364,370
Amount of interest repaid in cash	$ 4,353	$ 0	$ 26,113
USD denominated debentures with embedded derivatives [Member] | Minimum [Member]
Terms of Loan
Annual interest rate	2%	2%
Effective annual interest rate	24%	24%
Remaining life (in months)	0 months	0 months
USD denominated debentures with embedded derivatives [Member] | Maximum [Member]
Terms of Loan
Annual interest rate	4%	4%
Effective annual interest rate	5,158%	5,803%
Remaining life (in months)	11 months	11 months

Convertible debentures (Sched_2

Convertible debentures (Schedule of detailed information about underlying assumptions) (Details) - Derivative liabilities [Member] - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022
Convertible Debentures [Line Items]
Share price	$ 0.05	$ 0.03
Expected dividend yield	0%	0%
CDN to USD exchange rate (as applicable)	$ 0.7209	$ 0.7299
Minimum [Member]
Convertible Debentures [Line Items]
Exercise price	$ 0.03	$ 0.02
Volatility factor (based on historical volatility)	114%	140%
Risk free interest rate	5.11%	3.09%
Expected life of conversion features (in months)	0 months	0 months
Call value	$ 0.01	$ 0
Maximum [Member]
Convertible Debentures [Line Items]
Exercise price	$ 0.07	$ 0.07
Volatility factor (based on historical volatility)	189%	232%
Risk free interest rate	5.48%	4.28%
Expected life of conversion features (in months)	11 months	11 months
Call value	$ 0.08	$ 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, 2023 USD ($) share $ / shares	Oct. 31, 2022 USD ($) share $ / shares	Oct. 31, 2021 USD ($) share $ / shares
Stock Options [Abstract]
Number of share options outstanding in share-based payment arrangement at beginning of period | share	11,725,000	11,700,000	2,200,000
Weighted average exercise price of share options outstanding in share-based payment arrangement at beginning of period | $ / shares	$ 0.06	$ 0.06	$ 0.1
Number of share options exercised in share-based payment arrangement | share	(2,550,000)
Weighted average exercise price of share options exercised in share-based payment arrangement | $ / shares	$ 0.09
Proceeds realized from exercise of options | $	$ 214,140	$ 0	$ 0
Number of share options granted in share-based payment arrangement | share	3,000,000	2,025,000	9,500,000
Weighted average exercise price of share options granted in share-based payment arrangement | $ / shares	$ 0.09	$ 0.07	$ 0.06
Number of share options expired in share-based payment arrangement | share	(2,400,000)	(2,000,000)
Weighted average exercise price of share options expired in share-based payment arrangement | $ / shares	$ 0.08	$ 0.07
Number of share options outstanding in share-based payment arrangement at end of period | share	9,775,000	11,725,000	11,700,000
Weighted average exercise price of share options outstanding in share-based payment arrangement at end of period | $ / shares	$ 0.06	$ 0.06	$ 0.06

Stock options (Schedule of de_2

Stock options (Schedule of detailed information related to number and weighted average remaining contractual life of outstanding share options) (Details)	12 Months Ended
	Oct. 31, 2023 share $ / shares	Oct. 31, 2022 share $ / shares	Oct. 31, 2021 share $ / shares	Oct. 31, 2020 share $ / shares
Disclosure Of Information About Stock Options [Line Items]
Number of options | share	9,775,000	11,725,000	11,700,000	2,200,000
Exercise price | $ / shares	$ 0.06	$ 0.06	$ 0.06	$ 0.1
Weighted average remaining contractual life	2 years 4 months 24 days
November 13, 2020 [Member]
Disclosure Of Information About Stock Options [Line Items]
Expiry date of stock options outstanding	November 13, 2025
Number of options | share	5,750,000
Exercise price | $ / shares	$ 0.05
Weighted average remaining contractual life	2 years
October 8, 2021 [Member]
Disclosure Of Information About Stock Options [Line Items]
Expiry date of stock options outstanding	October 8, 2026
Number of options | share	1,000,000
Exercise price | $ / shares	$ 0.07
Weighted average remaining contractual life	2 years 10 months 24 days
December 15, 2021 [Member]
Disclosure Of Information About Stock Options [Line Items]
Expiry date of stock options outstanding	December 15, 2023
Number of options | share	25,000
Exercise price | $ / shares	$ 0.07
Weighted average remaining contractual life	1 month 6 days
March 20, 2023 [Member]
Disclosure Of Information About Stock Options [Line Items]
Expiry date of stock options outstanding	March 20, 2028
Number of options | share	2,000,000
Exercise price | $ / shares	$ 0.07
Weighted average remaining contractual life	4 years 4 months 24 days
April 6, 2023 [Member]
Disclosure Of Information About Stock Options [Line Items]
Expiry date of stock options outstanding	April 6, 2024
Number of options | share	1,000,000
Exercise price | $ / shares	$ 0.12
Weighted average remaining contractual life	4 months 24 days

Stock options (Schedule of de_3

Stock options (Schedule of detailed information about options, valuation assumptions) (Details)	12 Months Ended
	Oct. 31, 2023 USD ($) year $ / shares	Oct. 31, 2022 USD ($) year $ / shares	Oct. 31, 2021 USD ($) year $ / shares
Disclosure Of Information About Stock Options [Line Items]
Share price at grant date			$ 0.05
Exercise price		$ 0.07
Risk free interest rate			0.75%
Expected life of options in years | year			5
Expected dividend yield	0%	0%	0%
Forfeiture rate	0%	0%	0%
Minimum [Member]
Disclosure Of Information About Stock Options [Line Items]
Share price at grant date	$ 0.07	$ 0.03
Exercise price	$ 0.07		$ 0.05
Volatility factor	175%	212%	148%
Risk free interest rate	2.79%	0.97%
Expected life of options in years | year	1	1
Weighted average Black Scholes value at grant date | $	$ 0.06	$ 0.02	$ 0.05
Maximum [Member]
Disclosure Of Information About Stock Options [Line Items]
Share price at grant date	$ 0.12	$ 0.05
Exercise price	$ 0.12		$ 0.07
Volatility factor	184%	272%	180%
Risk free interest rate	3.58%	4.33%
Expected life of options in years | year	5	2
Weighted average Black Scholes value at grant date | $	$ 0.08	$ 0.03	$ 0.06

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, 2023	Oct. 31, 2022	Oct. 31, 2021
Numerator
Net loss attributable to common shareholders and used in computation of basic and diluted loss per share	$ (2,691,670)	$ (2,287,095)	$ (1,012,978)
Denominator
Weighted average number of common shares for computation of basic and diluted loss per share	490,310,376	451,177,796	422,613,046

Income taxes (Schedule of detai

Income taxes (Schedule of detailed information about effective income tax expense (recovery)) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Major components of tax expense (income) [abstract]
Loss before income taxes	$ (2,691,670)	$ (2,287,095)	$ (1,012,978)
Statutory tax rate	26.50%	26.50%	26.50%
Expected income tax recovery	$ (713,293)	$ (606,080)	$ (268,439)
Accretion expense and loss (gain) on convertible debentures and derivative liabilities	283,688	269,531	(97,480)
Stock-based compensation	57,761	10,992	95,412
Non-deductible (non-taxable) expenses and other items	(13,660)	(3,780)	82,530
Effect of changes in exchange rates	74,714	940,577	(644,649)
Change in deferred tax assets not recognized	310,790	(611,240)	832,626
Current tax expense (income)	$ 0	$ 0	$ 0

Income taxes (Schedule of det_2

Income taxes (Schedule of detailed information about deferred taxes) (Details) - USD ($)	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Disclosure Of Information About Income Taxes [Line Items]
Deferred tax assets	$ 10,599,354	$ 10,286,836	$ 10,898,075
Deferred tax assets not recognized	(10,599,354)	(10,286,836)	(10,898,075)
Net deferred tax assets	0	0	0
Non-capital losses [Member]
Disclosure Of Information About Income Taxes [Line Items]
Deferred tax assets	8,833,940	8,485,255	8,924,982
Capital losses [Member]
Disclosure Of Information About Income Taxes [Line Items]
Deferred tax assets	159,671	162,275	178,808
Property, equipment, patents and deferred costs [Member]
Disclosure Of Information About Income Taxes [Line Items]
Deferred tax assets	$ 1,605,743	$ 1,639,306	$ 1,794,285

Income taxes (Schedule of det_3

Income taxes (Schedule of detailed information about unused tax losses) (Details)	Oct. 31, 2023 USD ($)
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	$ 33,335,623
2026 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,731,988
2027 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,456,466
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	1,636,406
2030 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	3,894,918
2031 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,231,911
2032 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,670,539
2033 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,787,427
2034 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	3,037,095
2035 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	3,235,652
2036 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	3,568,255
2037 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	2,736,157
2038 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,692,737
2039 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,513,943
2040 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	509,976
2041 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	883,620
2042 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,254,159
2043 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,494,374
Canada [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	28,885,183
Canada [Member] | 2026 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,731,988
Canada [Member] | 2027 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,456,466
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	1,492,685
Canada [Member] | 2030 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	2,014,021
Canada [Member] | 2031 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,213,385
Canada [Member] | 2032 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,344,746
Canada [Member] | 2033 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,629,964
Canada [Member] | 2034 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	2,358,006
Canada [Member] | 2035 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	2,664,751
Canada [Member] | 2036 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	3,127,236
Canada [Member] | 2037 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	2,503,443
Canada [Member] | 2038 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,692,420
Canada [Member] | 2039 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,513,943
Canada [Member] | 2040 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	509,976
Canada [Member] | 2041 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	883,620
Canada [Member] | 2042 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,254,159
Canada [Member] | 2043 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,494,374
United States [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	4,450,440
United States [Member] | 2026 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
United States [Member] | 2027 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
United States [Member] | 2028 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
United States [Member] | 2029 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	143,721
United States [Member] | 2030 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	1,880,897
United States [Member] | 2031 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	18,526
United States [Member] | 2032 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	325,793
United States [Member] | 2033 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	157,463
United States [Member] | 2034 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	679,089
United States [Member] | 2035 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	570,901
United States [Member] | 2036 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	441,019
United States [Member] | 2037 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	232,714
United States [Member] | 2038 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	317
United States [Member] | 2039 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
United States [Member] | 2040 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
United States [Member] | 2041 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
United States [Member] | 2042 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	0
United States [Member] | 2043 [Member]
Disclosure Of Information About Income Taxes [Line Items]
Non-capital losses	$ 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, 2023	Oct. 31, 2022	Oct. 31, 2021
Disclosure Of Operating Expenses [Line Items]
General and administrative expense	$ 148,616	$ 185,366	$ 155,504
General and administrative [Member]
Disclosure Of Operating Expenses [Line Items]
General and administrative expense	70,584	59,938	86,186
Rent and occupancy [Member]
Disclosure Of Operating Expenses [Line Items]
General and administrative expense	17,663	50,907	15,536
Office insurance [Member]
Disclosure Of Operating Expenses [Line Items]
General and administrative expense	1,930	1,696	753
Investor relations, listing and filing fees [Member]
Disclosure Of Operating Expenses [Line Items]
General and administrative expense	52,756	64,769	53,029
Telephone [Member]
Disclosure Of Operating Expenses [Line Items]
General and administrative expense	$ 5,683	$ 8,056	$ 0

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, 2023	Oct. 31, 2022	Oct. 31, 2021
Disclosure Of Operating Expenses [Line Items]
Professional, other fees and salaries	$ 610,052	$ 647,710	$ 424,485
Professional fees [Member]
Disclosure Of Operating Expenses [Line Items]
Professional, other fees and salaries	144,244	110,933	107,554
Consulting fees [Member]
Disclosure Of Operating Expenses [Line Items]
Professional, other fees and salaries	67,664	69,563	132,793
Salaries and benefits [Member]
Disclosure Of Operating Expenses [Line Items]
Professional, other fees and salaries	$ 398,144	$ 467,214	$ 184,138

Supplemental cash flow inform_3

Supplemental cash flow information (Schedule of detailed information about supplemental cash flow information) (Details) - USD ($)	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Supplemental Cash Flow Informations Abstract
Balance - beginning of period	$ 4,433,363	$ 3,239,483	$ 3,615,080
Cash flows from financing activities:
Proceeds from issuance of convertible debentures	645,151	765,671	510,000
Repayments of convertible debentures	(270,000)	(63,490)	(593,301)
Non-cash changes:
Accretion expense	279,834	1,179,603	1,169,921
Accrued interest on convertible debentures	471,596	368,280	408,543
Loss (gain) on repayment of convertible debentures	27,243	(47,877)	0
Loss on conversion of convertible debentures	21,120	94,326	0
Gain on revaluation of derivative liabilities	(658,503)	(409,607)	(2,547,192)
Loss (gain) on extinguishment of debt	1,400,823	200,650	1,018,928
Convertible debentures converted into common shares	(1,656,422)	(764,432)	(521,136)
Renewal of convertible debentures	0	0	(16,804)
Foreign exchange loss (gain)	(66,753)	(129,244)	195,444
Balance - end of period	$ 4,627,452	$ 4,433,363	$ 3,239,483

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, 2023	Oct. 31, 2022	Oct. 31, 2021
Disclosure of transactions between related parties [abstract]
Professional, other fees, and salaries	$ 214,914	$ 133,517	$ 107,201
Stock-based compensation	82,946	0	227,500
Key management compensation	$ 297,860	$ 133,517	$ 334,701

Financial risk management (Sche

Financial risk management (Schedule of detailed information about foreign exchange risk) (Details)	Oct. 31, 2023 CAD ($)	Oct. 31, 2023 USD ($)	Oct. 31, 2022 CAD ($)	Oct. 31, 2022 USD ($)
Disclosure of detailed information about financial instruments [line items]
Cash		$ 31,584		$ 33,227
Long-term loan		$ 43,254		$ 43,796
Currency risk [Member]
Disclosure of detailed information about financial instruments [line items]
Cash	$ 38,444		$ 15,715
Other receivables	29,080		13,832
Trade payables and other liabilities	290,311		393,978
Convertible debentures	2,544,289		2,810,362
Debenture payable	52,031		51,500
Derivative liabilities	1,087,044		601,696
Long-term loan	$ 60,000		$ 60,000

Financial risk management (Sc_2

Financial risk management (Schedule of detailed information about maturity of trade payables) (Details) - Liquidity risk [Member] - USD ($)	Oct. 31, 2023	Oct. 31, 2022
Disclosure of detailed information about financial instruments [line items]
Trade payables	$ 209,285	$ 287,575
Less than 30 days past billing date [Member]
Disclosure of detailed information about financial instruments [line items]
Trade payables	$ 209,285	$ 287,575

Financial risk management (Sc_3

Financial risk management (Schedule of detailed information about maturity of convertible debentures and derivative liabilities) (Details) - USD ($)	Oct. 31, 2023	Oct. 31, 2022
Disclosure of detailed information about financial instruments [line items]
Convertible debentures	$ 3,548,059	$ 3,792,064
Liquidity risk [Member]
Disclosure of detailed information about financial instruments [line items]
Convertible debentures	3,923,784	4,127,578
Debenture payable	37,509	38,001
Liquidity risk [Member] | Less than three months [Member]
Disclosure of detailed information about financial instruments [line items]
Convertible debentures	2,451,614	2,445,107
Debenture payable	37,509	0
Liquidity risk [Member] | Three to six months [Member]
Disclosure of detailed information about financial instruments [line items]
Convertible debentures	1,038,355	1,235,836
Debenture payable	0	0
Liquidity risk [Member] | Six to twelve months [Member]
Disclosure of detailed information about financial instruments [line items]
Convertible debentures	433,815	446,635
Debenture payable	$ 0	$ 38,001