3.26.1 html 572 388 1 false 148 0 false 10 false false R1.htm 00090 - Document - Document and Entity Information Sheet http://www.visionmarinetechnologies.com/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 00100 - Statement - Consolidated statements of financial position Sheet http://www.visionmarinetechnologies.com/role/StatementConsolidatedStatementsOfFinancialPosition Consolidated statements of financial position Statements 2 false false R3.htm 00200 - Statement - Consolidated statements of changes in equity (deficit) Sheet http://www.visionmarinetechnologies.com/role/StatementConsolidatedStatementsOfChangesInEquityDeficit Consolidated statements of changes in equity (deficit) Statements 3 false false R4.htm 00205 - Statement - Consolidated statements of changes in equity (deficit) (Parenthetical) Sheet http://www.visionmarinetechnologies.com/role/StatementConsolidatedStatementsOfChangesInEquityDeficitParenthetical Consolidated statements of changes in equity (deficit) (Parenthetical) Statements 4 false false R5.htm 00300 - Statement - Consolidated statements of comprehensive income (loss) Sheet http://www.visionmarinetechnologies.com/role/StatementConsolidatedStatementsOfComprehensiveIncomeLoss Consolidated statements of comprehensive income (loss) Statements 5 false false R6.htm 00400 - Statement - Consolidated statements of cash flows Sheet http://www.visionmarinetechnologies.com/role/StatementConsolidatedStatementsOfCashFlows Consolidated statements of cash flows Statements 6 false false R7.htm 10101 - Disclosure - Incorporation and nature of business Sheet http://www.visionmarinetechnologies.com/role/DisclosureIncorporationAndNatureOfBusiness Incorporation and nature of business Notes 7 false false R8.htm 10201 - Disclosure - Basis of preparation and going concern uncertainty Sheet http://www.visionmarinetechnologies.com/role/DisclosureBasisOfPreparationAndGoingConcernUncertainty Basis of preparation and going concern uncertainty Notes 8 false false R9.htm 10301 - Disclosure - New accounting standards and interpretations Sheet http://www.visionmarinetechnologies.com/role/DisclosureNewAccountingStandardsAndInterpretations New accounting standards and interpretations Notes 9 false false R10.htm 10401 - Disclosure - Business Combinations Sheet http://www.visionmarinetechnologies.com/role/DisclosureBusinessCombinations Business Combinations Notes 10 false false R11.htm 10501 - Disclosure - Cash and cash equivalents Sheet http://www.visionmarinetechnologies.com/role/DisclosureCashAndCashEquivalents Cash and cash equivalents Notes 11 false false R12.htm 10601 - Disclosure - Trade and other receivables Sheet http://www.visionmarinetechnologies.com/role/DisclosureTradeAndOtherReceivables Trade and other receivables Notes 12 false false R13.htm 10701 - Disclosure - Inventories Sheet http://www.visionmarinetechnologies.com/role/DisclosureInventories Inventories Notes 13 false false R14.htm 10801 - Disclosure - Right-of-use assets Sheet http://www.visionmarinetechnologies.com/role/DisclosureRightOfUseAssets Right-of-use assets Notes 14 false false R15.htm 10901 - Disclosure - Property and equipment Sheet http://www.visionmarinetechnologies.com/role/DisclosurePropertyAndEquipment Property and equipment Notes 15 false false R16.htm 11001 - Disclosure - Intangible assets Sheet http://www.visionmarinetechnologies.com/role/DisclosureIntangibleAssets Intangible assets Notes 16 false false R17.htm 11101 - Disclosure - Trade and other payables Sheet http://www.visionmarinetechnologies.com/role/DisclosureTradeAndOtherPayables Trade and other payables Notes 17 false false R18.htm 11201 - Disclosure - Contract liabilities Sheet http://www.visionmarinetechnologies.com/role/DisclosureContractLiabilities Contract liabilities Notes 18 false false R19.htm 11301 - Disclosure - Lease liabilities Sheet http://www.visionmarinetechnologies.com/role/DisclosureLeaseLiabilities Lease liabilities Notes 19 false false R20.htm 11401 - Disclosure - Floor plan financing Sheet http://www.visionmarinetechnologies.com/role/DisclosureFloorPlanFinancing Floor plan financing Notes 20 false false R21.htm 11501 - Disclosure - Long-term debt Sheet http://www.visionmarinetechnologies.com/role/DisclosureLongTermDebt Long-term debt Notes 21 false false R22.htm 11601 - Disclosure - Derivative liabilities Sheet http://www.visionmarinetechnologies.com/role/DisclosureDerivativeLiabilities Derivative liabilities Notes 22 false false R23.htm 11701 - Disclosure - Related party transactions Sheet http://www.visionmarinetechnologies.com/role/DisclosureRelatedPartyTransactions Related party transactions Notes 23 false false R24.htm 11801 - Disclosure - Capital stock Sheet http://www.visionmarinetechnologies.com/role/DisclosureCapitalStock Capital stock Notes 24 false false R25.htm 11901 - Disclosure - Share-based payments Sheet http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPayments Share-based payments Notes 25 false false R26.htm 12001 - Disclosure - Revenues Sheet http://www.visionmarinetechnologies.com/role/DisclosureRevenues Revenues Notes 26 false false R27.htm 12101 - Disclosure - Net finance expense (income) Sheet http://www.visionmarinetechnologies.com/role/DisclosureNetFinanceExpenseIncome Net finance expense (income) Notes 27 false false R28.htm 12201 - Disclosure - Fair value measurement and hierarchy Sheet http://www.visionmarinetechnologies.com/role/DisclosureFairValueMeasurementAndHierarchy Fair value measurement and hierarchy Notes 28 false false R29.htm 12301 - Disclosure - Segment information Sheet http://www.visionmarinetechnologies.com/role/DisclosureSegmentInformation Segment information Notes 29 false false R30.htm 12401 - Disclosure - Additional cash flows information Sheet http://www.visionmarinetechnologies.com/role/DisclosureAdditionalCashFlowsInformation Additional cash flows information Notes 30 false false R31.htm 12501 - Disclosure - Commitments and contingencies Sheet http://www.visionmarinetechnologies.com/role/DisclosureCommitmentsAndContingencies Commitments and contingencies Notes 31 false false R32.htm 12601 - Disclosure - Subsequent events Sheet http://www.visionmarinetechnologies.com/role/DisclosureSubsequentEvents Subsequent events Notes 32 false false R33.htm 30203 - Disclosure - Basis of preparation and going concern uncertainty (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureBasisOfPreparationAndGoingConcernUncertaintyTables Basis of preparation and going concern uncertainty (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureBasisOfPreparationAndGoingConcernUncertainty 33 false false R34.htm 30403 - Disclosure - Business Combinations (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureBusinessCombinationsTables Business Combinations (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureBusinessCombinations 34 false false R35.htm 30603 - Disclosure - Trade and other receivables (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureTradeAndOtherReceivablesTables Trade and other receivables (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureTradeAndOtherReceivables 35 false false R36.htm 30703 - Disclosure - Inventories (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureInventoriesTables Inventories (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureInventories 36 false false R37.htm 30803 - Disclosure - Right-of-use assets (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureRightOfUseAssetsTables Right-of-use assets (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureRightOfUseAssets 37 false false R38.htm 30903 - Disclosure - Property and equipment (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosurePropertyAndEquipmentTables Property and equipment (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosurePropertyAndEquipment 38 false false R39.htm 31003 - Disclosure - Intangible assets (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureIntangibleAssetsTables Intangible assets (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureIntangibleAssets 39 false false R40.htm 31103 - Disclosure - Trade and other payables (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureTradeAndOtherPayablesTables Trade and other payables (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureTradeAndOtherPayables 40 false false R41.htm 31203 - Disclosure - Contract liabilities (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureContractLiabilitiesTables Contract liabilities (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureContractLiabilities 41 false false R42.htm 31303 - Disclosure - Lease liabilities (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureLeaseLiabilitiesTables Lease liabilities (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureLeaseLiabilities 42 false false R43.htm 31403 - Disclosure - Floor plan financing (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureFloorPlanFinancingTables Floor plan financing (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureFloorPlanFinancing 43 false false R44.htm 31503 - Disclosure - Long-term debt (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureLongTermDebtTables Long-term debt (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureLongTermDebt 44 false false R45.htm 31603 - Disclosure - Derivative liabilities (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureDerivativeLiabilitiesTables Derivative liabilities (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureDerivativeLiabilities 45 false false R46.htm 31703 - Disclosure - Related party transactions (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureRelatedPartyTransactionsTables Related party transactions (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureRelatedPartyTransactions 46 false false R47.htm 31803 - Disclosure - Capital stock (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureCapitalStockTables Capital stock (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureCapitalStock 47 false false R48.htm 31903 - Disclosure - Share-based payments (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPaymentsTables Share-based payments (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPayments 48 false false R49.htm 32003 - Disclosure - Revenues (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureRevenuesTables Revenues (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureRevenues 49 false false R50.htm 32103 - Disclosure - Net finance expense (income) (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureNetFinanceExpenseIncomeTables Net finance expense (income) (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureNetFinanceExpenseIncome 50 false false R51.htm 32303 - Disclosure - Segment information (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureSegmentInformationTables Segment information (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureSegmentInformation 51 false false R52.htm 32403 - Disclosure - Additional cash flows information (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureAdditionalCashFlowsInformationTables Additional cash flows information (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureAdditionalCashFlowsInformation 52 false false R53.htm 32503 - Disclosure - Commitments and contingencies (Tables) Sheet http://www.visionmarinetechnologies.com/role/DisclosureCommitmentsAndContingenciesTables Commitments and contingencies (Tables) Tables http://www.visionmarinetechnologies.com/role/DisclosureCommitmentsAndContingencies 53 false false R54.htm 40201 - Disclosure - Basis of preparation and going concern uncertainty (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureBasisOfPreparationAndGoingConcernUncertaintyDetails Basis of preparation and going concern uncertainty (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureBasisOfPreparationAndGoingConcernUncertaintyTables 54 false false R55.htm 40202 - Disclosure - Basis of preparation and going concern uncertainty - Accumulated other comprehensive income (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureBasisOfPreparationAndGoingConcernUncertaintyAccumulatedOtherComprehensiveIncomeDetails Basis of preparation and going concern uncertainty - Accumulated other comprehensive income (Details) Details 55 false false R56.htm 40203 - Disclosure - Basis of preparation and going concern uncertainty - Exchange rates for the currencies (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureBasisOfPreparationAndGoingConcernUncertaintyExchangeRatesForCurrenciesDetails Basis of preparation and going concern uncertainty - Exchange rates for the currencies (Details) Details 56 false false R57.htm 40401 - Disclosure - Business combinations - Recognized amounts of assets acquired and liabilities (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureBusinessCombinationsRecognizedAmountsOfAssetsAcquiredAndLiabilitiesDetails Business combinations - Recognized amounts of assets acquired and liabilities (Details) Details 57 false false R58.htm 40402 - Disclosure - Business Combinations - Consideration transferred reconciliation (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureBusinessCombinationsConsiderationTransferredReconciliationDetails Business Combinations - Consideration transferred reconciliation (Details) Details 58 false false R59.htm 40403 - Disclosure - Business Combinations - Additional Information (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureBusinessCombinationsAdditionalInformationDetails Business Combinations - Additional Information (Details) Details 59 false false R60.htm 40601 - Disclosure - Trade and other receivables (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureTradeAndOtherReceivablesDetails Trade and other receivables (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureTradeAndOtherReceivablesTables 60 false false R61.htm 40602 - Disclosure - Trade and other receivables - Aging analysis (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureTradeAndOtherReceivablesAgingAnalysisDetails Trade and other receivables - Aging analysis (Details) Details 61 false false R62.htm 40603 - Disclosure - Trade and other receivables - Allowance for expected credit losses (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureTradeAndOtherReceivablesAllowanceForExpectedCreditLossesDetails Trade and other receivables - Allowance for expected credit losses (Details) Details 62 false false R63.htm 40701 - Disclosure - Inventories (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureInventoriesDetails Inventories (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureInventoriesTables 63 false false R64.htm 40702 - Disclosure - Inventories - Additional Information (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureInventoriesAdditionalInformationDetails Inventories - Additional Information (Details) Details 64 false false R65.htm 40801 - Disclosure - Right-of-use assets (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureRightOfUseAssetsDetails Right-of-use assets (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureRightOfUseAssetsTables 65 false false R66.htm 40901 - Disclosure - Property and equipment (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosurePropertyAndEquipmentDetails Property and equipment (Details) Details http://www.visionmarinetechnologies.com/role/DisclosurePropertyAndEquipmentTables 66 false false R67.htm 41001 - Disclosure - Intangible assets (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureIntangibleAssetsDetails Intangible assets (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureIntangibleAssetsTables 67 false false R68.htm 41002 - Disclosure - Intangible assets - Additional Information (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureIntangibleAssetsAdditionalInformationDetails Intangible assets - Additional Information (Details) Details 68 false false R69.htm 41101 - Disclosure - Trade and other payables (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureTradeAndOtherPayablesDetails Trade and other payables (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureTradeAndOtherPayablesTables 69 false false R70.htm 41201 - Disclosure - Contract liabilities (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureContractLiabilitiesDetails Contract liabilities (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureContractLiabilitiesTables 70 false false R71.htm 41301 - Disclosure - Lease liabilities (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureLeaseLiabilitiesDetails Lease liabilities (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureLeaseLiabilitiesTables 71 false false R72.htm 41302 - Disclosure - Lease liabilities - Undiscounted lease payments (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureLeaseLiabilitiesUndiscountedLeasePaymentsDetails Lease liabilities - Undiscounted lease payments (Details) Details 72 false false R73.htm 41401 - Disclosure - Floor plan financing (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureFloorPlanFinancingDetails Floor plan financing (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureFloorPlanFinancingTables 73 false false R74.htm 41501 - Disclosure - Long-term debt (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureLongTermDebtDetails Long-term debt (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureLongTermDebtTables 74 false false R75.htm 41601 - Disclosure - Derivative liabilities - Additional information (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureDerivativeLiabilitiesAdditionalInformationDetails Derivative liabilities - Additional information (Details) Details 75 false false R76.htm 41602 - Disclosure - Derivative liabilities - Fair value of option grants relating to warrants (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureDerivativeLiabilitiesFairValueOfOptionGrantsRelatingToWarrantsDetails Derivative liabilities - Fair value of option grants relating to warrants (Details) Details 76 false false R77.htm 41603 - Disclosure - Derivative liabilities - Movements related to the warrants (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureDerivativeLiabilitiesMovementsRelatedToWarrantsDetails Derivative liabilities - Movements related to the warrants (Details) Details 77 false false R78.htm 41604 - Disclosure - Derivative liabilities - Series A & B Convertible Preferred Shares (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureDerivativeLiabilitiesSeriesBConvertiblePreferredSharesDetails Derivative liabilities - Series A & B Convertible Preferred Shares (Details) Details 78 false false R79.htm 41605 - Disclosure - Derivative liabilities - Movements (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureDerivativeLiabilitiesMovementsDetails Derivative liabilities - Movements (Details) Details 79 false false R80.htm 41606 - Disclosure - Derivative liabilities - Purchase consideration - NVG acquisition (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureDerivativeLiabilitiesPurchaseConsiderationNvgAcquisitionDetails Derivative liabilities - Purchase consideration - NVG acquisition (Details) Details 80 false false R81.htm 41607 - Disclosure - Derivative liabilities - Allocation of Debt Hosts and Embedded Derivatives (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureDerivativeLiabilitiesAllocationOfDebtHostsAndEmbeddedDerivativesDetails Derivative liabilities - Allocation of Debt Hosts and Embedded Derivatives (Details) Details 81 false false R82.htm 41608 - Disclosure - Derivative liabilities - Movements related to the Purchase Consideration (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureDerivativeLiabilitiesMovementsRelatedToPurchaseConsiderationDetails Derivative liabilities - Movements related to the Purchase Consideration (Details) Details 82 false false R83.htm 41701 - Disclosure - Related party transactions (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureRelatedPartyTransactionsDetails Related party transactions (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureRelatedPartyTransactionsTables 83 false false R84.htm 41702 - Disclosure - Related party transactions - Disaggregation of proceeds receivable from related parties (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureRelatedPartyTransactionsDisaggregationOfProceedsReceivableFromRelatedPartiesDetails Related party transactions - Disaggregation of proceeds receivable from related parties (Details) Details 84 false false R85.htm 41703 - Disclosure - Related party transactions - Summarizes the Company's related party transactions (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureRelatedPartyTransactionsSummarizesCompanySRelatedPartyTransactionsDetails Related party transactions - Summarizes the Company's related party transactions (Details) Details 85 false false R86.htm 41704 - Disclosure - Related party transactions - Remuneration of directors and key management of the Company (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureRelatedPartyTransactionsRemunerationOfDirectorsAndKeyManagementOfCompanyDetails Related party transactions - Remuneration of directors and key management of the Company (Details) Details 86 false false R87.htm 41705 - Disclosure - Related party transactions - Amounts due to and from related parties (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureRelatedPartyTransactionsAmountsDueToAndFromRelatedPartiesDetails Related party transactions - Amounts due to and from related parties (Details) Details 87 false false R88.htm 41801 - Disclosure - Capital stock - Voting Common Shares (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureCapitalStockVotingCommonSharesDetails Capital stock - Voting Common Shares (Details) Details 88 false false R89.htm 41802 - Disclosure - Capital stock - Additional Information (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureCapitalStockAdditionalInformationDetails Capital stock - Additional Information (Details) Details 89 false false R90.htm 41901 - Disclosure - Share-based payments - Stock options (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPaymentsStockOptionsDetails Share-based payments - Stock options (Details) Details 90 false false R91.htm 41902 - Disclosure - Share-based payments - Assumptions used to determine the fair value of option grants (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPaymentsAssumptionsUsedToDetermineFairValueOfOptionGrantsDetails Share-based payments - Assumptions used to determine the fair value of option grants (Details) Details 91 false false R92.htm 41903 - Disclosure - Share-based payments - Option grants outstanding (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPaymentsOptionGrantsOutstandingDetails Share-based payments - Option grants outstanding (Details) Details 92 false false R93.htm 41904 - Disclosure - Share-based payments - Exercise price range of stock options (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPaymentsExercisePriceRangeOfStockOptionsDetails Share-based payments - Exercise price range of stock options (Details) Details 93 false false R94.htm 41905 - Disclosure - Share-based payments - Warrants (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPaymentsWarrantsDetails Share-based payments - Warrants (Details) Details 94 false false R95.htm 41906 - Disclosure - Share-based payments - Fair value of option grants relating to warrants (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPaymentsFairValueOfOptionGrantsRelatingToWarrantsDetails Share-based payments - Fair value of option grants relating to warrants (Details) Details 95 false false R96.htm 41907 - Disclosure - Share-based payments - Restricted share unit plan (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPaymentsRestrictedShareUnitPlanDetails Share-based payments - Restricted share unit plan (Details) Details 96 false false R97.htm 41908 - Disclosure - Share-based payments - RSUs Vesting (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPaymentsRsusVestingDetails Share-based payments - RSUs Vesting (Details) Details 97 false false R98.htm 41909 - Disclosure - Share-based payments - RSUs valuation assumptions (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPaymentsRsusValuationAssumptionsDetails Share-based payments - RSUs valuation assumptions (Details) Details 98 false false R99.htm 41910 - Disclosure - Share-based payments - RSUs outstanding (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureShareBasedPaymentsRsusOutstandingDetails Share-based payments - RSUs outstanding (Details) Details 99 false false R100.htm 42001 - Disclosure - Revenues (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureRevenuesDetails Revenues (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureRevenuesTables 100 false false R101.htm 42101 - Disclosure - Net finance expense (income) (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureNetFinanceExpenseIncomeDetails Net finance expense (income) (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureNetFinanceExpenseIncomeTables 101 false false R102.htm 42201 - Disclosure - Financial risk management and fair value measurement (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureFinancialRiskManagementAndFairValueMeasurementDetails Financial risk management and fair value measurement (Details) Details 102 false false R103.htm 42301 - Disclosure - Segment information (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureSegmentInformationDetails Segment information (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureSegmentInformationTables 103 false false R104.htm 42302 - Disclosure - Segment information - Segment results (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureSegmentInformationSegmentResultsDetails Segment information - Segment results (Details) Details 104 false false R105.htm 42303 - Disclosure - Segment information - Segment assets (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureSegmentInformationSegmentAssetsDetails Segment information - Segment assets (Details) Details 105 false false R106.htm 42401 - Disclosure - Additional cash flows information (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureAdditionalCashFlowsInformationDetails Additional cash flows information (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureAdditionalCashFlowsInformationTables 106 false false R107.htm 42501 - Disclosure - Commitments and contingencies (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureCommitmentsAndContingenciesDetails Commitments and contingencies (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureCommitmentsAndContingenciesTables 107 false false R108.htm 42502 - Disclosure - Commitments and contingencies - Summary of undiscounted lease commitments (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureCommitmentsAndContingenciesSummaryOfUndiscountedLeaseCommitmentsDetails Commitments and contingencies - Summary of undiscounted lease commitments (Details) Details 108 false false R109.htm 42601 - Disclosure - Subsequent events (Details) Sheet http://www.visionmarinetechnologies.com/role/DisclosureSubsequentEventsDetails Subsequent events (Details) Details http://www.visionmarinetechnologies.com/role/DisclosureSubsequentEvents 109 false false All Reports Book All Reports vmar-20260531.xsd vmar-20260531_cal.xml vmar-20260531_def.xml vmar-20260531_lab.xml vmar-20260531_pre.xml vmar-20260531x6k.htm vmar-20260531xex99d1.htm vmar-20260531xex99d1001.jpg http://xbrl.sec.gov/dei/2025 https://xbrl.ifrs.org/taxonomy/2025-03-27/ifrs-full true true