Equity Components [Axis] Common Stock Preferred Stock Additional Paid-in Capital Common Stock Issuable Accumulated Deficit Accumulated Other Comprehensive Income (Loss) Award Type [Axis] Equity Incentive Plan Property, Plant and Equipment, Type [Axis] Building Land Building and Land Improvements Machinery and Equipment Office Equipment and Furniture Restricted Stock Units Additional Paid-in Capital - Warrants Additional Paid-in Capital - Benificial Conversion Feature Warrants Antidilutive Securities [Axis] Stock Options Liability Class [Axis] Long-Term Debt Liability Class [Axis] Level 2 Foreign Exchange Contracts Level 1 Debt Instrument [Axis] Investissement Québec Financing Facility Term Loan Cover [Abstract] Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Is Entity's Reporting Status Current? Entity Filer Category Entity Common Stock, Shares Outstanding Document Fiscal Period Focus Document Fiscal Year Focus Entity Emerging Growth Company Entity Small Business Entity Shell Company Entity Interactive Data Current? Entity Incorporation State Country Code Entity File Number Statement of Financial Position [Abstract] Assets Current assets Cash and cash equivalents Sales tax, tax credits and other receivables (Note 3) Prepaid expenses (Note 4) Total current assets Investment in joint venture (Note 9) Property, plant and equipment, net (Note 5) Intangible assets, net (Note 6) Total assets Liabilities and Stockholders' Equity Current liabilities Accounts payable and accrued liabilities (Note 8) Current portion of long-term debt (Note 10) Total current liabilities Long-term debt (Note 10) Total liabilities Stockholders' Equity Series A Preferred stock par value $0.0001; 25,000,000 shares authorized; one share issued and outstanding (Note 12) Common stock par value $0.0001: 250,000,000 shares authorized; 39,916,905 shares issued and outstanding (February 29, 2020 - 39,910,774) (Note 12) Additional paid-in capital Additional paid-in capital - Warrants Accumulated deficit Accumulated other comprehensive loss Total stockholders' equity Total liabilities and stockholders' equity Series A preferred stock, par value Series A preferred stock, share authorized Series A preferred stock, share issued Series A preferred stock, share outstanding Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Income Statement [Abstract] Revenue Expenses Research and development, net (Note 13) General and administrative (Note 13) Depreciation and amortization (Notes 5 and 6) Interest and other financial expenses (Note 16) Interest income Foreign exchange loss (gain) Total expenses Net loss Other comprehensive loss Foreign currency translation adjustment Comprehensive loss Loss per share Basic and diluted Weighted average common shares outstanding Basic and diluted Statement [Table] Statement [Line Items] Beginning balance, shares Beginning balance, amount Issuance of common shares for cash, net of share issuance expenses (Note 12), shares Issuance of common shares for cash, net of share issuance expenses (Note 12), amount Issuance of shares for legal settlement, shares Issuance of shares for legal settlement, amount Issuance of shares upon conversion of convertible notes, shares Issuance of shares upon conversion of convertible notes, amount Issuance of shares upon vesting of restricted stock units (Note 13), shares Issuance of shares upon vesting of restricted stock units (Note 13), amount Warrant issued for services (Note 15) Stock options issued for services (Note 13) Restricted stock units issued for services (Note 13) Foreign currency translation Net loss Ending balance, shares Ending balance, amount Statement of Cash Flows [Abstract] Cash Flows from Operating Activities Adjustments to reconcile net loss to net cash used in operating activities: Depreciation and amortization (Notes 5 and 6) Stock-based compensation expense (Note 13) Accrued interest expenses (Note 10) Loss on revaluation of warrants Debt accretion (Note 10) Deferred financing expenses Gain on conversion of convertible notes Loss on revaluation of foreign exchange contracts Changes in operating assets and liabilities: Sales tax and tax credits receivable (Note 3) Prepaid expenses (Note 4) Accounts payable and accrued liabilities (Note 8) Net cash used in operating activities Cash Flows from Investing Activities Investment in a joint venture (Note 9) Additions to property, plant and equipment (Note 5) Additions to intangible assets (Note 6) Net cash used in investing activities Cash Flows from Financing Activities Proceeds from sale of common shares Share issuance costs Repayment of long-term debt (Note 10) Net cash (used) provided by financing activities Effect of exchange rate changes Net decrease in cash Cash, beginning of period Cash, end of period Supplemental Disclosure of Cash Flow Information: Income tax paid Interest paid Interest received Organization, Consolidation and Presentation of Financial Statements [Abstract] The Company, Basis of Presentation and Going Concern Accounting Policies [Abstract] Summary of Significant Accounting Policies Receivables [Abstract] Sales Tax, Tax Credits and Other Receivables Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Prepaid Expenses Property, Plant and Equipment [Abstract] Property, Plant and Equipment Finite-Lived Intangible Assets, Net [Abstract] Intangible Assets Fair Value Disclosures [Abstract] Fair Value of Financial Instruments Payables and Accruals [Abstract] Accounts Payable and Accrued Liabilities Equity Method Investments and Joint Ventures [Abstract] Joint Venture Long-term Debt, Unclassified [Abstract] Long-Term Debt Related Party Transactions [Abstract] Related Party Transactions Stockholders' Equity Attributable to Parent [Abstract] Stockholders' Equity Share-based Payment Arrangement [Abstract] Share-Based Payments Equity [Abstract] Equity Incentive Plan Warrants Warrants Interest And Other Financial Expenses Interest and Other Financial Expenses Use of estimates Foreign currency translations and transactions Stock-based compensation Income taxes Research and development expenses Net earnings (loss) per share Recent accounting pronouncements Sales tax, tax credits and other receivables Prepaid expenses Property, plant and equipment Intangible assets Fair value of financial instruments Accounts payable and accrued liabilities Long-term debt Principal repayments Common stock Key inputs into the valuation model Equity incentive plan Interest and other financial expenses Research and development expenses Antidilutive securities Sales tax Research and development tax credits Other receivables Sales tax, research and development tax credits and other receivables Insurance Machinery and equipment Other prepaid expenses Prepaid expenses Long-Lived Tangible Asset [Axis] Statistical Measurement [Axis] Property, plant and equipment, gross Less: accumulated depreciation Property, plant and equipment, net Depreciation expense Intangible assets, at cost - beginning of period Intangible assets, accumulated depreciation Total Add: Additions in the year Deduct: Amortization of intangibles Deduct: Impairment of intangibles Deduct: Foreign exchange effect Total Amortization expense Fair Value Hierarchy and NAV [Axis] Carrying amount Fair value Trade accounts payable Trade accrued liabilities Accrued employee compensation Foreign exchange contracts Other accrued liabilities Accounts payable and accrued liabilities Principal amount Unamortized discount Accrued interest Less: current portion Long-term debt, net of current portion February 28, 2021 February 28, 2022 February 28, 2023 February 29, 2024 February 28, 2025 Thereafter Total Interest expense Accretion expense Interest paid Exercise price Risk-free interest rate Expected dividend yield Expected volatility Expected life Stock options granted Stock options granted, weighted average exercise price Stock options forfeited Stock options forfeited, weighted average exercise price Stock options exercised Stock options expired Stock options expired, weighted average exercise price Stock option expense Restricted stock units granted Restricted stock units granted, weighted average exercise price Restricted stock units settled Restricted stock units settled, weighted average exercise price Restricted stock units forfeited Restricted stock units forfeited, weighted average exercise price Restricted stock unit expense Number of units outstanding, beginning Automatic share reserve increase Number of units, granted Number of units, forfeited Number of units, expired Number of units outstanding, ending Warrants issued Warrants issued, weighted average exercise price Interest on long-term debt Interest on convertible notes Accretion expense Amortization of deferred finance costs Revaluation of warrants Gain on conversion of November 2018 Notes Other Interest and other finance costs Custom Element. Assets, Current Assets [Default Label] Liabilities, Current Stockholders' Equity Attributable to Parent Liabilities and Equity Interest and Dividend Income, Operating Foreign Currency Transaction Gain (Loss), before Tax Operating Expenses Comprehensive Income (Loss), Net of Tax, Attributable to Parent Weighted Average Number of Shares Outstanding, Basic and Diluted Shares, Issued Depreciation, Depletion and Amortization Increase (Decrease) in Accrued Interest Receivable, Net GainLossOnRevaluationOfWarrants Increase (Decrease) in Deferred Charges ConversionGainsAndLossesOnCovertibleNotes GainLossOnRevaluationOfForeignExchangeContracts Increase (Decrease) in Prepaid Expense Increase (Decrease) in Accounts Payable Net Cash Provided by (Used in) Operating Activities Payments to Acquire Interest in Joint Venture Payments to Acquire Property, Plant, and Equipment Payments to Acquire Intangible Assets Net Cash Provided by (Used in) Investing Activities ShareIssuanceCosts Repayments of Long-term Debt Net Cash Provided by (Used in) Financing Activities Cash and Cash Equivalents, Period Increase (Decrease) Cash Long-term Debt [Text Block] Stockholders' Equity Note Disclosure [Text Block] Compensation and Employee Benefit Plans [Text Block] WarrantsDisclosureTextBlock SalesTaxResearchAndDevelopmentTaxCreditsAndOtherReceivables Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Impairment of Intangible Assets, Finite-lived Accounts Payable and Accrued Liabilities [Default Label] Debt Instrument, Unamortized Discount Interest Paid, Including Capitalized Interest, Operating and Investing Activities NumberOfOptionsExercised Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number Accretion Expense GainOnConversionOfNovember2018Notes Other Nonoperating Income (Expense) InterestAndOtherFinanceCosts