Line Item by Name [Member] Line Item by Name [Member] Line Item by Name Range [axis] Range [axis] Warrants, company option, minimum share price, enabling company option (usd per share) Warrants, Company Option, Minimum Share Price Enabling Company Option Warrants, Company Option, Minimum Share Price Enabling Company Option Liabilities [member] Liabilities [member] US Prime Rate US Prime Rate [Member] US Prime Rate Lease liabilities Lease liabilities [member] Cost of inventories recognised as expense during period Cost of inventories recognised as expense during period Disclosure of detailed information about property, plant and equipment [table] Disclosure of detailed information about property, plant and equipment [table] Subsidiaries [axis] Subsidiaries [axis] Intangible assets and goodwill [member] Intangible assets and goodwill [member] Revolving Credit Facility, Additional Term Loan Facility Revolving Credit Facility, Additional Term Loan Facility [Member] Revolving Credit Facility, Additional Term Loan Facility Liabilities arising from financing activities [axis] Liabilities arising from financing activities [axis] Interest expense on current debt Interest Expense on Short-term Borrowings Interest Expense on Short-term Borrowings ASSETS Assets [abstract] Liabilities arising from financing activities [member] Liabilities arising from financing activities [member] Assets Total Financial Assets [Member] Total Financial Assets Statistical Measurement [Domain] Statistical Measurement [Domain] Disclosure of Covid-19 Unusual or Infrequent Items, or Both, Disclosure [Text Block] Unusual or Infrequent Items, or Both, Disclosure Entity Addresses, Address Type [Axis] Entity Addresses, Address Type [Axis] Disclosure of Equity Instruments Measured at Fair Value Disclosure of number and weighted average exercise prices of other equity instruments [text block] Disclosure of detailed information about property, plant and equipment [line items] Disclosure of detailed information about property, plant and equipment [line items] Transfer of retractable common shares from liability (in shares) Increase (Decrease) Through Transfer of Retractable Common Shares From Liability Increase (Decrease) Through Transfer of Retractable Common Shares From Liability Security Exchange Name Security Exchange Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Customers [member] Customers [member] Borrowing By Type [Member] Borrowing By Type [Member] Borrowing By Type September 2020 Convertible Debenture September 2020 Convertible Debenture [Member] September 2020 Convertible Debenture Foreign currency translation adjustment Increase (Decrease) Through Changes In Foreign Exchange Rates, Borrowings Increase (Decrease) Through Changes In Foreign Exchange Rates, Borrowings Weighted average exercise price of stock options cancelled (in CA$ per option) Weighted Average Exercise Price of Share Options Cancelled in Share-based Payment 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Financial liabilities, category [member] Financial liabilities, category [member] Common shares, retractable Common Shares, Retractable [Member] Common Shares, Retractable Sensitivity Analysis, Increase In Share Price Sensitivity Analysis, Increase In Share Price Sensitivity Analysis, Increase In Share Price Disclosure of Non-current Assets Allocated To Geographic Areas Schedule of Assets, Non-current [Table Text Block] Schedule of Assets, Non-current Additions Additions other than through business combinations, property, plant and equipment FINANCE COSTS Disclosure of finance cost [text block] Contributed surplus Additional paid-in capital Contact asset, other costs Increase (Decrease) Through Contract Assets, Other Costs Increase (Decrease) Through Contract Assets, Other Costs Property, plant and equipment acquired through instalment-type contract Additions Through Installement Contracts, Property, Plant and Equipment Additions Through Installement Contracts, Property, Plant and Equipment REPORTING ENTITY AND NATURE OF OPERATIONS Disclosure of general information about financial statements [text block] Restricted Stock Unit Restricted Stock Unit [Member] Restricted Stock Unit DEPRECIATION Accumulated depreciation and amortisation [member] FVTPL Financial liabilities at fair value through profit or loss, category [member] SHARE CAPITAL Disclosure of issued capital [text block] Disclosure of Attribution of Government Grants by Name [Line Items] Disclosure of Attribution of Government Grants by Name [Line Items] Disclosure of Attribution of Government Grants by Name EDC unsecured loan for the acquisition of moulds Economic Development Canada Unsecured Loan for the Acquisition of Moulds [Member] Economic Development Canada Unsecured Loan for the Acquisition of Moulds, Maturing February 2022 Changes in equity [abstract] Changes in equity [abstract] Warrants, company option, exercise price (usd per share) Warrants, Company Option, Exercise Price Warrants, Company Option, Exercise Price Balance of purchase price payable related to the acquisition of the dealership rights, without interest (Note 9) Purchase Price Payable Related to Acquisition of Dealership Rights [Member] Purchase Price Payable Related to Acquisition of Dealership Rights Leasehold improvements Leasehold improvements [member] Property, plant and equipment Description of accounting policy for property, plant and equipment [text block] SUMMARY OF ACCOUNTING POLICIES Disclosure of significant accounting policies [text block] Payment of lease liabilities Payments of lease liabilities, classified as financing activities Selling Selling Expenses [Member] Selling Expenses Plus dilutive impact of stock options, RSUs, DSUs, and warrants (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Share price (CA $) Weighted average share price, share options granted Net change in non-cash working capital items Net change in non-cash working capital items Increase (decrease) in working capital Earlier useful lives (in years) Useful life measured as period of time, property, plant and equipment Share capital [member] Share capital [member] Classification of financial instruments Disclosure of detailed information about financial instruments [text block] Construction in progress Construction in progress [member] Disclosure of detailed information about property, plant and equipment Disclosure of detailed information about property, plant and equipment [text block] Earnings per share Description of accounting policy for earnings per share [text block] Borrowings, adjustment to interest rate basis Borrowings, adjustment to interest rate basis Classes of intangible assets other than goodwill [axis] Classes of intangible assets other than goodwill [axis] Foreign currency translation adjustment Increase (Decrease) Through Foreign Exchange, Contract Assets Increase (Decrease) Through Foreign Exchange, Contract Assets Effect of exchange rate changes on cash held in foreign currency Effect of exchange rate changes on cash and cash equivalents Current liabilities Current liabilities Foreign currency translation adjustment Increase (decrease) through net exchange differences, property, plant and equipment Financial assets Financial assets Schedule of Long-term and Other Debts Convertible Debt Instruments Disclosure of detailed information about borrowings [text block] Interest/Discount Rate Borrowings, Discount Rate Borrowings, Discount Rate Subsidies received Subsidies Received Subsidies Received Deficit Retained earnings [member] Local Phone Number Local Phone Number More than 5 years Later than five years [member] Authorized amount Borrowing Facilities, Authorized Amount Borrowing Facilities, Authorized Amount Liquidity risk Liquidity risk [member] Disclosure of Attribution of Government Grants by Name [Axis] Disclosure of Attribution of Government Grants by Name [Table] Disclosure of Attribution of Government Grants by Name Issued share capital Asset Acquisition, Issued Capital, Recognized Identifiable Assets Acquired and Liabilities Assumed Asset Acquisition, Issued Capital, Recognized Identifiable Assets Acquired and Liabilities Assumed Non-deductible expenses Tax effect of expense not deductible in determining taxable profit (tax loss) Warrant liability Asset Acquisition, Warrant Liability, Recognized Identifiable Assets Acquired and Liabilities Assumed Asset Acquisition, Warrant Liability, Recognized Identifiable Assets Acquired and Liabilities Assumed Final installment payment Borrowings, Final Installment Payment Borrowings, Final Installment Payment Liabilities Total Financial Liabilities [Member] Total Financial Liabilities Trade and other payables Adjustments for increase (decrease) in trade accounts payable Share-based payments Key management personnel compensation, share-based payment Provisions Description of accounting policy for provisions [text block] Classes of assets [axis] Classes of assets [axis] Disclosure of significant unobservable inputs used in fair value measurement of liabilities [line items] Disclosure of significant unobservable inputs used in fair value measurement of liabilities [line items] Redemption of conversion option on convertible debt instruments Increase (Decrease) in Redemption of Conversion Option on Convertible Debt Instruments Increase (Decrease) in Redemption of Conversion Option on Convertible Debt Instruments Lion Electric Manufacturing USA Inc. Lion Electric Manufacturing USA Inc. [Member] Lion Electric Manufacturing USA Inc. Asset Acquisition [Abstract] Asset Acquisition [Abstract] FINANCIAL INSTRUMENT RISK AND CAPITAL MANAGEMENT Disclosure of financial risk management [text block] Statement of changes in equity [line items] Statement of changes in equity [line items] Current Current assets [abstract] Warrant price ($) (in USD per share) Class of Warrant or Right, Fair Value of Each Warrant or Right Class of Warrant or Right, Fair Value of Each Warrant or Right Transaction costs Business Acquisition, Transaction Costs Business Acquisition, Transaction Costs Expected dividends per share (CA$) Expected Dividend Per Share, Share Options Outstanding In Share-Based Payment Arrangement Expected Dividend Per Share, Share Options Outstanding In Share-Based Payment Arrangement Repayment of loans on research and development tax credits and subsidies receivable Repayments Of Loans on Research and Development Tax Credits and Subsidies Receivable, Classified As Financing Activities Repayments Of Loans on Research and 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finance income Expected income tax recovery Tax expense (income) at applicable tax rate Proceeds from issuance of convertible debt instruments, net of issuance costs Proceeds From Issuing Convertible Debt Instruments, Net of Issuance Costs Proceeds From Issuing Convertible Debt Instruments, Net of Issuance Costs Decrease through goverment assistance Decrease Through Goverment Assistance, Intangible Assets Other Than Goodwill Decrease Through Goverment Assistance, Intangible Assets Other Than Goodwill Document Information [Line Items] Document Information [Line Items] Change in unrecognized deferred tax assets Tax Effect Of Change In Unrecognized Deferred Tax Assets Tax Effect Of Change In Unrecognized Deferred Tax Assets Repayment Increase (decrease) through conversion of convertible instruments, equity Valuation techniques [member] Valuation techniques [member] Risk exposure associated with instruments sharing characteristic Risk exposure associated with instruments sharing characteristic Buy-out amount Buy-out Amount Buy-out Amount FINANCING ACTIVITIES Cash flows from (used in) financing activities [abstract] Geographical areas [axis] Geographical areas [axis] Share warrant obligations Warrant Warrant [Member] Warrant Canada CANADA Disclosure of detailed information about borrowings [line items] Disclosure of detailed information about borrowings [line items] Trade and other payables Trade Payables [Member] Trade Payables Spending of warrant Spending, Warrant Spending, Warrant Interest on lease liabilities Interest expense on lease liabilities Classes of liabilities [axis] Classes of liabilities [axis] Share-Based Payment Arrangements [Abstract] Share-Based Payment Arrangements [Abstract] Share-Based Payment Arrangements [Abstract] Reconciliation of changes in intangible assets other than goodwill [abstract] Reconciliation of changes in intangible assets other than goodwill [abstract] Change in interest rates Sensitivity Analysis For Types Of Interest Rate Risk, Increase Or Decrease In Reasonably Possible Change In Risk Variable, Percent Sensitivity Analysis For Types Of Interest Rate Risk, Increase Or Decrease In Reasonably Possible Change In Risk Variable, Percent Number of units outstanding, beginning of year (in shares) Number of units outstanding, end of year (in shares) Number of other equity instruments outstanding in share-based payment arrangement Current portion of lease liabilities Current portion Current lease liabilities Unobservable inputs [member] Unobservable inputs [member] Number of stock options, outstanding, beginning of year (in shares) Number of stock options, outstanding, end of year (in shares) Number of stock options Number of share options outstanding in share-based payment arrangement Interest rate types [member] Interest rate types [member] Gross profit Gross profit Accounts Receivable Description of accounting policy for trade and other receivables [text block] Borrowings by name [member] Borrowings by name [member] Foreign currency translation adjustment Increase (Decrease) Through Net Exchange Differences, Right-Of-Use Assets Increase (Decrease) Through Net Exchange Differences, Right-Of-Use Assets Total net indebtedness to total capitalization ratio Ratio of Indebtedness to Net Capital Ratio of Indebtedness to Net Capital Exercise price (CA $) Weighted average exercise price of stock options outstanding, beginning of year (in CA$ per option) Weighted average exercise price of stock options outstanding, end of year (in CA$ per option) Weighted average exercise price of share options outstanding in share-based payment arrangement Issuance of shares capital and transaction with owners (in shares) Number of Shares Issued Capital and Transaction With Owners Number of Shares Issued Capital and Transaction With Owners Available credit Borrowing Facilities, Available Credit Borrowing Facilities, Available Credit Loan in the amount of $58,753 for the acquisition of rolling stock Secured Loan for the Acquisition of Rolling Stock, Maturing August 2024, One [Member] Secured Loan for the Acquisition of Rolling Stock, Maturing August 2024, One Acquisition of property, plant and equipment Purchase of property, plant and equipment, classified as investing activities Capital expenditure Borrowings, Covenant, Capital Expenditure Ratio Borrowings, Covenant, Capital Expenditure Ratio Line items by function [member] Line items by function [member] Disclosure of Fair Value Assumptions Disclosure of significant unobservable inputs used in fair value measurement of liabilities [text block] Advances Proceeds from non-current borrowings Entity Voluntary Filers Entity Voluntary Filers Less than 1 year Not later than one year [member] Financial liabilities Financial liabilities Financial liabilities COVID-19 [Abstract] COVID-19 [Abstract] Purchase and other obligations Purchase And Other Obligations, Undiscounted Cash Flows [Member] Purchase And Other Obligations, Undiscounted Cash Flows Total assets Assets Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Shares issued (in shares) Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares Asset Acquisition, Equity Interest Issued or Issuable, Number of Shares Basic loss per share (in USD per share) Basic earnings (loss) per share Disclosure Of Related Party Transactions [Abstract] Disclosure Of Related Party Transactions [Abstract] Entity Wide Disclosures [Abstract] Entity Wide Disclosures [Abstract] Entity Wide Disclosures [Abstract] Computer equipment Computer equipment [member] Operating income (loss) Profit (loss) from operating activities Deferred Share Units Deferred Share Units [Member] Deferred Share Units Disclosure of attribution of expenses by nature to their function [table] Disclosure of attribution of expenses by nature to their function [table] Increase in long-term debt Proceeds from borrowings, classified as financing activities Total remuneration Key management personnel compensation Wages and salaries (Note 14.1) Wages and salaries Remaining contractual life (years) Weighted average remaining contractual life of outstanding share options Employee benefits expense Employee benefits expense Basis of consolidation Disclosure of basis of consolidation [text block] Share-based compensation liability, non-current Liabilities From Share-Based Payment Transactions, Non-Current Liabilities From Share-Based Payment Transactions, Non-Current Convertible debt instruments Non-current debt instruments issued Disclosure of Fair Value of Private Warrants Disclosure of Weighted Assumptions Used in the Black-Scholes Option Pricing Model Disclosure of indirect measurement of fair value of goods or services received, share options granted during period [text block] Disclosure of temporary difference, unused tax losses and unused tax credits [table] Disclosure of temporary difference, unused tax losses and unused tax credits [table] Contract asset Beginning Balance Ending Balance Contract assets Share warrant obligations Non-current warrant liability Property, Plant and Equipment [Abstract] Disclosure Of Property, Plant and Equipment Abstract [Abstract] Disclosure Of Property, Plant and Equipment [Abstract] Equity attributable to owners of parent [member] Equity attributable to owners of parent [member] Financing fees Borrowing costs incurred Overall considerations Description Of Accounting Policies For Overall Considerations [Policy Text Block] Description Of Accounting Policies For Overall Considerations Issuance of convertible loan Increase (Decrease) Through Issuance Of Borrowings, Borrowings Increase (Decrease) Through Issuance Of Borrowings, Borrowings Issuance of shares through private placement Increase (Decrease) in Shares Issued Pursuant to Exercise of Stock Options Increase (Decrease) in Shares Issued Pursuant to Exercise of Stock Options Share-based compensation Increase (decrease) through share-based payment transactions, equity Disclosure of previously published figures, adjustments stemming from this change and the adjusted figure Schedule Of Error Corrections And Prior Period Adjustments [Table Text Block] Schedule Of Error Corrections And Prior Period Adjustments March 2020 Convertible Loan March 2020 Convertible Notes [Member] March 2020 Convertible Notes Conversion option of convertable loan Issue of convertible instruments Prepaid expenses Adjustments for decrease (increase) in prepaid expenses Entity Interactive Data Current Entity Interactive Data Current Beginning Balance Ending Balance Warrants issued as part of the business combination transaction Warrant liability Explaination of Significant Changes in Contract Assets and Share Warrant Obligation Explaination of Significant Changes in Contract Assets and Warrant Liability [Table Text Block] Explaination of Significant Changes in Contract Assets and Warrant Liability Statement of financial position [abstract] Number of reportable operating segments Number Of Reportable Operating Segments Number Of Reportable Operating Segments Ownership percentage Proportion of ownership interest in subsidiary Minimum Minimum [Member] Non-adjusting events after reporting period [member] Non-adjusting events after reporting period [member] Risk-free interest rate (%) Risk Free Interest Rate, Other Equity Instruments Granted Risk Free Interest Rate, Other Equity Instruments Granted Property, plant and equipment [member] Property, plant and equipment [member] Accretion expense Increase (Decrease) Through Accretion Of Borrowings, Borrowings Increase (Decrease) Through Accretion Of Borrowings, Borrowings Other government assistance receivable Goverment Assistance Receivables, Other [Member] Goverment Assistance Receivables, Other Classes of financial assets [axis] Classes of financial assets [axis] Number of shares outstanding at beginning of period (in shares) Number of shares outstanding at end of period (in shares) Number of shares outstanding Number of shares outstanding CA$13.29 (issued in 2021) Exercise Price Range Six [Member] Exercise Price Range Six Trade receivables, gross Trade and other receivables Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Address, State or Province Entity Address, State or Province Impairment testing of intangible assets, property, plant and equipment and right-of-use assets Description of accounting policy for impairment of assets [text block] Disclosure of Outstanding Options Disclosure of number and weighted average exercise prices of share options [text block] Loss before income taxes Loss before income taxes Profit (loss) before tax Financial instruments Description of accounting policy for financial instruments [text block] Conversion Option Reserve of equity component of convertible instruments [member] Current portion of long-term debt and other debts Current portion of non-current borrowings Warrant assumptions Significant unobservable input, liabilities SIF Loan SIF Loan [Member] SIF Loan Management Fees Key Management Personnel Compensation, Management Fees Key Management Personnel Compensation, Management Fees Intangible assets Beginning balance Ending balance Intangible assets other than goodwill Revision of Prior Period [Axis] Revision of Prior Period [Axis] Machinery and equipment Machinery and Equipment [Member] Machinery and Equipment Contingent assets and contingent liabilities Description of accounting policy for contingent liabilities and contingent assets [text block] Disclosure of classes of share capital [table] Disclosure of classes of share capital [table] Prototypes Prototypes [Member] Prototypes Finance costs Finance costs Finance costs Right-of-use assets Right-of-use assets, beginning balance Right-of-use assets, end balance Right-of-use assets Secured Borrowing Facilities, Secured Borrowing Facilities, Secured Inventories Adjustments for decrease (increase) in inventories Salaries and vacations payable Short-term employee benefits accruals Foreign currency increase (decrease) Sensitivity Analysis Increase Or Decrease In Currency Risk, Reasonably Possible Change In Risk Variable, Percent Sensitivity Analysis Increase Or Decrease In Currency Risk, Reasonably Possible Change In Risk Variable, Percent Secured loans for the acquisition of rolling stock, maturing between December 2023 and August 2024 (Note 11.4) Secured Loan for the Acquisition of Rolling Stock, Maturing December 2023 And August 2024 [Member] Secured Loan for the Acquisition of Rolling Stock, Maturing December 2023 And August 2024 Customer 1 Customer 1 [Member] Customer 1 Net change in credit facilities Net Change in Credit Facilities Net Change in Credit Facilities Furniture and office equipment Furniture and Office Equipment [Member] Furniture and Office Equipment Document Transition Report Document Transition Report Intangible assets Description of accounting policy for intangible assets other than goodwill [text block] Income taxes Income taxes Tax expense (income) BUSINESS COMBINATION, PLAN OF REORGANIZATION AND REGISTRATION STATEMENT Asset Acquisition [Text Block] Asset Acquisition EARNINGS PER SHARE Disclosure of earnings per share [text block] Aggregated time bands [member] Aggregated time bands [member] Foreign currency translation adjustment Increase (decrease) through net exchange differences, intangible assets other than goodwill Disclosure Of Supplemental Cash Flow Information [Table] Disclosure of reconciliation of liabilities arising from financing activities [table] Disclosure of Share-based Compensation Liabilities Explanation of effect of share-based payments on entity's financial position [text block] Additional Term Loan, bearing interest at the bank's prime rate plus 3% (5.45%), maturing in April 2021 (Note 11.1) Initial Term Loan, Bearning Interest at the Bank's Prime Rate Plus 3%, Maturing April 2021 [Member] Initial Term Loan, Bearning Interest at the Bank's Prime Rate Plus 3%, Maturing April 2021 Interest paid under lease liabilities Interest Paid Under Lease Liabilities, Classified as Operating Activities Interest Paid Under Lease Liabilities, Classified as Operating Activities Entity Emerging Growth Company Entity Emerging Growth Company Foreign exchange gain Increase (Decrease) Through Exchange Differences Gross Lease Liabilities Increase (Decrease) Through Exchange Differences, Gross Lease Liabilities Proportion of amount disbursed forgiven Proportion Of Amount Disbursed Forgiven Proportion Of Amount Disbursed Forgiven Borrowing Type [Axis] Borrowing Type [Axis] Borrowing Type Non-current Non-current liabilities [abstract] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Employee Benefits [Abstract] Employee Benefits [Abstract] Auditor [Line Items] Disclosure of Group's Revenue From External Customers That Are Divided Into Geographical Areas Disclosure of disaggregation of revenue from contracts with customers [text block] Shares redeemed Increase (Decrease) In Shares Redeemed Increase (Decrease) In Shares Redeemed Interest paid Interest paid, classified as operating activities Raw materials Current raw materials Interest rates used to capitalize the borrowing costs Significant unobservable input, assets Legal Entity [Axis] Legal Entity [Axis] Major customers [axis] Major customers [axis] Auditor Name Auditor Name Cover [Abstract] Interest on borrowings Interest expense on borrowings INVESTING ACTIVITIES Cash flows from (used in) investing activities [abstract] Document Shell Company Report Document Shell Company Report Discount rate, measurement input Discount rate, measurement input [member] Statement of changes in equity [abstract] Current Current liabilities [abstract] Schedule of outstanding stock options, share warrant obligations, RSUs and DSUs Earnings per share [text block] Economic Development Canada (EDC) unsecured loans, maturing between January 2022 and February 2022 (Note 11.3) Economic Development Canada Unsecured Loan for the Marketing of Products in the United States [Member] Economic Development Canada Unsecured Loan for the Marketing of Products in the United States, Maturing February 2022 Current assets Current assets Property, plant and equipment Temporary Differences, Property, Plant And Equipment [Member] Temporary Differences, Property, Plant And Equipment Disclosure of reconciliation of the effective tax rate Disclosure Of Reconciliation Of Accounting Profit Multiplied By Applicable Tax Rates And Average Effective Tax Rate [Text Block] Disclosure Of Reconciliation Of Accounting Profit Multiplied By Applicable Tax Rates And Average Effective Tax Rate Classes of intangible assets and goodwill [axis] Classes of intangible assets and goodwill [axis] Change in fair value of share warrant obligations Increase (decrease) through exercise of warrants, equity Disclosure of attribution of expenses by nature to their function [line items] Disclosure of attribution of expenses by nature to their function [line items] Disclosure of depreciation Disclosure Of Quantitative Information About Depreciation [Table Text Block] Disclosure Of Quantitative Information About Depreciation Other Miscellaneous other operating expense Other tax credits receivable Other Tax Credits Receivable Other Tax Credits Receivable Number of securities called by each warrant (in shares) Class Of Warrant, Number Of Securities Called By Each Warrant Class Of Warrant, Number Of Securities Called By Each Warrant Disclosure of detailed information about intangible assets [line items] Disclosure of detailed information about intangible assets [line items] Entity [Domain] Entity [Domain] Non-monetary additions Non-Monetary Additions On Liabilities Arising From Financing Activities Non-Monetary Additions On Liabilities Arising From Financing Activities Accretion expense on common shares, retractable Adjustments for Accretion Expenses on Common Shares, Retractable Adjustments for Accretion Expenses on Common Shares, Retractable Other information on cash flows related to operating activities: Other Information on Cash Flows Related to Operating Activities [Abstract] Other Information on Cash Flows Related to Operating Activities Additions Additions to right-of-use assets Long term debt - balance of purchase price payable related to the acquisition of dealership rights Long-term debt Long-term Debt [Member] Long-term Debt Entity's total for subsidiaries [member] Entity's total for subsidiaries [member] Current portion of share-based compensation liability Share-based compensation liability, current Liabilities From Share-Based Payment Transactions, Current Liabilities From Share-Based Payment Transactions, Current EMPLOYEE BENEFITS EXPENSE Disclosure of employee benefits [text block] Item that will be subsequently reclassified to net loss Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] Customer 2 Customer 2 [Member] Customer 2 Major Customer 3 Major Customer 3 [Member] Major Customer 3 Long-term borrowings Long-term borrowings [member] Repayment Decrease Through Debt Principal, Net Debt Decrease Through Debt Principal, Net Debt Share-based compensation liability Liabilities from share-based payment transactions Commodity taxes receivable Commodity Tax Receivables Commodity Tax Receivables Disclosure of Disaggregation of Non-current assets [Table] Disclosure of Disaggregation of Non-current assets [Table] Disclosure of Disaggregation of Non-current assets Share price Share Price, Measurement Input [Member] Share Price, Measurement Input Lion Holding USA Inc. Lion Holdings USA Inc. [Member] Lion Holdings USA Inc. Document Information [Table] Document Information [Table] Weighted average exercise price of stock options exercised (in CA$ per option) Weighted average exercise price of share options exercised in share-based payment arrangement Stock split Share Capital, Stock Split, Conversion Ratio Share Capital, Stock Split, Conversion Ratio Repayment of convertible debt instruments Repayments of non-current borrowings Lease payments Lease Payments Lease Payments Transfer from share-based compensation liability Increase (Decrease) Through Transfer From Share-based Compensation Liability Increase (Decrease) Through Transfer From Share-based Compensation Liability Disclosure of range of exercise prices of outstanding share options [line items] Disclosure of range of exercise prices of outstanding share options [line items] Diluted loss per share (in USD per share) Diluted earnings (loss) per share LEASE OBLIGATIONS Disclosure of leases [text block] Impact of US tax rate applicable to the subsidiary Tax effect of foreign tax rates Impact of 5% decrease in value of share price Increase (decrease) in fair value measurement due to reasonably possible decrease in unobservable input, recognised in profit or loss, after tax, liabilities Granted (in shares) Number of other equity instruments granted in share-based payment arrangement Credit facilities Credit Facilities [Member] Credit Facilities Proceeds from issuance of shares through private placement, net of issuance costs Proceeds From Issuing Shares Through Private Placement, Net of Issuance Costs Proceeds From Issuing Shares Through Private Placement, Net of Issuance Costs Northern Genesis Acquisition Corp. Northern Genesis Acquisition Corp. [Member] Northern Genesis Acquisition Corp. Document Fiscal Year Focus Document Fiscal Year Focus Repayment of long-term debt Repayments of borrowings, classified as financing activities Compensation expense related to stock options Expense from share-based payment transactions with employees Unused tax losses for which no deferred tax asset recognised Unused tax losses for which no deferred tax asset recognised Additions, internally developed Additions Other Than Through Business Combinations, Internally Developed, Intangible Assets Other Than Goodwill Additions Other Than Through Business Combinations, Internally Developed, Intangible Assets Other Than Goodwill Accretion and revaluation expense on balance of purchase price payable related to the acquisition of the dealership rights Adjustments For Accretion and Revaluation Expense on Balance of Purchase Price Payable Related to the Acquisition of the Dealership Rights Adjustments For Accretion and Revaluation Expense on Balance of Purchase Price Payable Related to the Acquisition of the Dealership Rights Disclosure Of finance costs Disclosure Of Finance Costs Explanatory [Table Text Block] Disclosure Of Finance Costs Explanatory CA$0.93 (issued in 2019) Exercise Price Range Two [Member] Exercise Price Range Two Prepaid expenses Current prepaid expenses Cash Cash and cash equivalents Long-term debt Long-Term Debt, Excluding Convertible Debt Instruments [Member] Long-Term Debt, Excluding Convertible Debt Instruments Published Previously Reported [Member] Disclosure of significant unobservable inputs used in fair value measurement of assets [line items] Disclosure of significant unobservable inputs used in fair value measurement of assets [line items] Disclosure of detailed information about financial instruments [line items] Disclosure of detailed information about financial instruments [line items] Payables, acquisition of property, plant and equipment Payables, Acquisition Of Property, Plant And Equipment Payables, Acquisition Of Property, Plant And Equipment Right-of-use assets Right-of-use assets [member] Increase or decrease in share price Increase (Decrease) In Share Price Increase (Decrease) In Share Price Long-term debt and other debts Non-current portion of non-current borrowings Canadian Prime Rate Canadian Prime Rate [Member] Canadian Prime Rate Lease obligations Lease Obligations [Member] Lease Obligations Work in process Current work in progress Disclosure of Amounts Managed by Capital Under Review [Line Items] Disclosure of Amounts Managed by Capital Under Review [Line Items] Disclosure of Amounts Managed by Capital Under Review CA$6.90 (issued in 2020) Exercise Price Range Three [Member] Exercise Price Range Three Discounted cash flow Discounted cash flow [member] Share redemption Share redemption Payments to acquire or redeem entity's shares Property, plant and equipment Beginning balance Ending balance Property, plant and equipment Number of newly issued shares Exchange Ratio On Common Shares Exchange Ratio On Common Shares Major Customer 1 Major Customer 1 [Member] Major Customer 1 Non-deductible share-based employee remuneration Non-Deductible Share-Based Employee Remuneration Non-Deductible Share-Based Employee Remuneration Customer 4 Customer 4 [Member] Customer 4 Non-derivative financial liabilities, undiscounted cash flows Non-derivative financial liabilities, undiscounted cash flows Stock Option Plan The Plan Stock Option Plan [Member] Stock Option Plan Impact of increase (decrease) in interest rates Sensitivity Analysis For Types Of Interest Rate Risk, Reasonably Possible Change In Risk Variable, Impact On Pre-Tax Earnings Sensitivity Analysis For Types Of Interest Rate Risk, Reasonably Possible Change In Risk Variable, Impact On Pre-Tax Earnings Administrative expenses Selling, general and administrative expense [member] Disclosure of Changes in Borrowings [Roll Forward] Disclosure of Changes in Borrowings [Roll Forward] Disclosure of Changes in Borrowings Change in fair value of 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share options [text block] Option pricing model Option pricing model [member] CA$23.02 (issued in 2021) Exercise Price Range Five [Member] Exercise Price Range Five Income from government grants Income from government grants Revolving Credit Facility, Term Loan Facility Revolving Credit Facility, Term Loan Facility [Member] Revolving Credit Facility, Term Loan Facility Disclosure of temporary difference, unused tax losses and unused tax credits [line items] Disclosure of temporary difference, unused tax losses and unused tax credits [line items] Anti-dilutive shares (in shares) Instruments With Potential Future Dilutive Effect Not Included in Calculation of Diluted Earnings Per Share Instruments With Potential Future Dilutive Effect Not Included in Calculation of Diluted Earnings Per Share Cost of sales Cost of sales Research and development expenditures carry-forward Research and Development Expenditures Carried Forward [Member] Research and Development Expenditures Carried Forward Proceeds from the issuance of shares through exercise of stock options Proceeds From Issuing Shares Through Exercise of Stock Options Proceeds From Issuing Shares Through Exercise of Stock Options Warrant Price Warrant Price, Measurement Input [Member] Warrant Price, Measurement Input Shares issued and fully paid (in shares) Number of shares issued and fully paid Borrowings costs, capitalized within intangible assets Borrowing costs capitalised Accretion expense on convertible debt instruments Adjustments for Accretion Expense on Convertible Debt Instruments Adjustments for Accretion Expense on Convertible Debt Instruments Additions, separately acquired Additions Other Than Through Business Combinations, Separately Acquired, Intangible Assets Other Than Goodwill Additions Other Than Through Business Combinations, Separately Acquired, Intangible Assets Other Than Goodwill Disclosure of intangible assets and carrying amounts Disclosure of detailed information about intangible assets [text block] Components of equity [axis] Components of equity [axis] Income taxes Description of accounting policy for income tax [text block] Current Fiscal Year End Date Current Fiscal Year End Date Amortized cost Financial assets at amortised cost, category [member] Non-refundable Investment Tax Credits Non-refundable Investment Tax Credits [Member] Non-refundable Investment Tax Credits Non-current assets Non-current assets Number of stock options forfeited (in shares) Number of share options forfeited in share-based payment arrangement Financial Instruments [Abstract] Financial Instruments [Abstract] Financial Instruments [Abstract] Weighted average exercise price of stock options forfeited (in CA$ per option) Weighted average exercise price of share options forfeited in share-based payment arrangement Proceeds Proceeds From Liabilities Arising From Financing Activities Proceeds From Liabilities Arising From Financing Activities Disclosure Of Supplemental Cash Flow Information [Line Items] Disclosure of reconciliation of liabilities arising from financing activities [line items] Finalta Capital Fund in December 2018 Finalta Capital Fund in December 2018 [Member] Finalta Capital Fund in December 2018 Issuance of share capital and transaction with owners Increase (Decrease) in Shares Issued Capital and Transaction With Owners Increase (Decrease) in Shares Issued Capital and Transaction With Owners Types of share-based payment arrangements [axis] Types of share-based payment arrangements [axis] Bottom of range Bottom of range [member] Disclosure of amounts recognised in administrative expenses Disclosure of Amounts Recognised in Administrative Expenses in Lease [Table Text Block] Disclosure of Amounts Recognised in Administrative Expenses in Lease Liabilities Non-capital losses carry-forward Non-capital Losses Carried Forward [Member] Non-capital Losses Carried Forward Financial liabilities Current financial liabilities Disclosure of principal subsidiaries, their jurisdiction, and the company's percentage ownership share Disclosure of interests in subsidiaries [text block] Statistical Measurement [Axis] Statistical Measurement [Axis] Stock Options Stock Options [Member] Stock Options Sales taxes payable Current value added tax payables Disclosure of Maturity of Contractual Obligations Disclosure of financial liabilities [text block] Subsidiaries in the United States of America Subsidiaries in the United States of America [Member] Subsidiaries in the United States of America Lion Electric Finance Canada Inc. Lion Electric Finance Canada Inc. [Member] Lion Electric Finance Canada Inc. Intangible assets other than goodwill [member] Intangible assets other than goodwill [member] Finance costs Description of accounting policy for finance costs [text block] Disclosure Of Maturity Analysis For Derivative And Non-Derivative Financial Liabilities [Line Items] Disclosure of maturity analysis for non-derivative financial liabilities [line items] Economic Development Canada (EDC) unsecured loans, maturing between January 2022 and February 2022 (Note 11.3) Economic Development Canada Unsecured Loans, Maturing Between January And February 2022 [Member] Economic Development Canada Unsecured Loans, Maturing Between January And February 2022 Buy-out and earn-out amount Buy-out And Earn-out Amount Buy-out And Earn-out Amount Payables, acquisition of intangible assets Payables, Acquisition Of Intangible Assets Payables, Acquisition Of Intangible Assets Warrants outstanding (in shares) Class of Warrant or Right, Outstanding Class of Warrant or Right, Outstanding Financial liabilities, class [member] Financial liabilities, class [member] Cash Cash And Cash Equivalents [Member] Cash And Cash Equivalents Common shares, retractable Common Shares, Retractable Common Shares, Retractable Risks [member] Risks [member] SHARE-BASED COMPENSATION Disclosure of share-based payment arrangements [text block] Estimated useful lives (in units) Useful life measured in production or other similar units, intangible assets other than goodwill Trade and other payables Asset Acquisition, Trade and Other Payables, Recognized Identifiable Assets Acquired and Liabilities Assumed Asset Acquisition, Trade and Other Payables, Recognized Identifiable Assets Acquired and Liabilities Assumed Estimated useful lives (in years) Useful life measured as period of time, intangible assets other than goodwill SUPPLEMENTAL CASH FLOW DISCLOSURE Disclosure Of Supplemental Cash Flow Information [Text Block] Disclosure Of Supplemental Cash Flow Information Loan on research and development tax credits and subsidies receivable Loans on Research and Development Tax Credit and Subsidies Receivable [Member] Loans on Research and Development Tax Credit and Subsidies Receivable Disclosure of Employee Benefits Expense Disclosure of Employee Benefits Expense [Table Text Block] Disclosure of Employee Benefits Expense Incentives from "support program for the deployment of electric school buses" and from "zero-emission truck and bus program" receivable Incentives From Support Program For The Deployment of Electric School Buses and From Zero-emission Truck And Bus Program Receivable [Member] Incentives From Support Program For The Deployment of Electric School Buses and From Zero-emission Truck And Bus Program Receivable Additions, borrowing costs Additions Other Than Through Business Combinations, Borrowing Costs, Intangible Assets Other Than Goodwill Additions Other Than Through Business Combinations, Borrowing Costs, Intangible Assets Other Than Goodwill Equity [member] Equity [member] Disclosure Of Maturity Analysis For Derivative And Non-Derivative Financial Liabilities [Table] Disclosure of maturity analysis for non-derivative financial liabilities [table]