3.20.2 html 271 399 1 false 108 0 false 10 false false R1.htm 0001001 - Document - Cover Sheet http://www.sequans.com/role/Cover Cover Cover 1 false false R2.htm 1001002 - Statement - Unaudited Condensed Consolidated Statements of Operations Sheet http://www.sequans.com/role/UnauditedCondensedConsolidatedStatementsofOperations Unaudited Condensed Consolidated Statements of Operations Statements 2 false false R3.htm 1002003 - Statement - Unaudited Condensed Consolidated Statements of Comprehensive Loss Sheet http://www.sequans.com/role/UnauditedCondensedConsolidatedStatementsofComprehensiveLoss Unaudited Condensed Consolidated Statements of Comprehensive Loss Statements 3 false false R4.htm 1003004 - Statement - Unaudited Condensed Consolidated Statements of Financial Position Sheet http://www.sequans.com/role/UnauditedCondensedConsolidatedStatementsofFinancialPosition Unaudited Condensed Consolidated Statements of Financial Position Statements 4 false false R5.htm 1004005 - Statement - Unaudited Condensed Consolidated Statements of Financial Position (Parenthetical) Sheet http://www.sequans.com/role/UnauditedCondensedConsolidatedStatementsofFinancialPositionParenthetical Unaudited Condensed Consolidated Statements of Financial Position (Parenthetical) Statements 5 false false R6.htm 1005006 - Statement - Unaudited Condensed Consolidated Statements of Changes in Equity (Deficit) Sheet http://www.sequans.com/role/UnauditedCondensedConsolidatedStatementsofChangesinEquityDeficit Unaudited Condensed Consolidated Statements of Changes in Equity (Deficit) Statements 6 false false R7.htm 1006007 - Statement - Unaudited Condensed Consolidated Statements of Cash Flows Sheet http://www.sequans.com/role/UnauditedCondensedConsolidatedStatementsofCashFlows Unaudited Condensed Consolidated Statements of Cash Flows Statements 7 false false R8.htm 2101101 - Disclosure - Corporate information Sheet http://www.sequans.com/role/Corporateinformation Corporate information Notes 8 false false R9.htm 2102102 - Disclosure - Basis of preparation and changes to the Company???s accounting policies Sheet http://www.sequans.com/role/BasisofpreparationandchangestotheCompanysaccountingpolicies Basis of preparation and changes to the Company???s accounting policies Notes 9 false false R10.htm 2105103 - Disclosure - Segment information and disaggregated revenue disclosures Sheet http://www.sequans.com/role/Segmentinformationanddisaggregatedrevenuedisclosures Segment information and disaggregated revenue disclosures Notes 10 false false R11.htm 2111104 - Disclosure - Research tax credit receivable and product development costs capitalized Sheet http://www.sequans.com/role/Researchtaxcreditreceivableandproductdevelopmentcostscapitalized Research tax credit receivable and product development costs capitalized Notes 11 false false R12.htm 2113105 - Disclosure - Interest expenses Sheet http://www.sequans.com/role/Interestexpenses Interest expenses Notes 12 false false R13.htm 2116106 - Disclosure - Income tax Sheet http://www.sequans.com/role/Incometax Income tax Notes 13 false false R14.htm 2120107 - Disclosure - Intangible assets Sheet http://www.sequans.com/role/Intangibleassets Intangible assets Notes 14 false false R15.htm 2123108 - Disclosure - Inventories Sheet http://www.sequans.com/role/Inventories Inventories Notes 15 false false R16.htm 2127109 - Disclosure - Trade receivables and contract assets Sheet http://www.sequans.com/role/Tradereceivablesandcontractassets Trade receivables and contract assets Notes 16 false false R17.htm 2132110 - Disclosure - Cash and cash equivalents; short-term deposits Sheet http://www.sequans.com/role/Cashandcashequivalentsshorttermdeposits Cash and cash equivalents; short-term deposits Notes 17 false false R18.htm 2136111 - Disclosure - Issued capital and reserves Sheet http://www.sequans.com/role/Issuedcapitalandreserves Issued capital and reserves Notes 18 false false R19.htm 2140112 - Disclosure - Share-based payment plans Sheet http://www.sequans.com/role/Sharebasedpaymentplans Share-based payment plans Notes 19 false false R20.htm 2144113 - Disclosure - Government grant advances and loans Sheet http://www.sequans.com/role/Governmentgrantadvancesandloans Government grant advances and loans Notes 20 false false R21.htm 2146114 - Disclosure - Venture debt Sheet http://www.sequans.com/role/Venturedebt Venture debt Notes 21 false false R22.htm 2148115 - Disclosure - Convertible debt Sheet http://www.sequans.com/role/Convertibledebt Convertible debt Notes 22 false false R23.htm 2150116 - Disclosure - Accounts receivable financing agreement Sheet http://www.sequans.com/role/Accountsreceivablefinancingagreement Accounts receivable financing agreement Notes 23 false false R24.htm 2152117 - Disclosure - Lease liabilities Sheet http://www.sequans.com/role/Leaseliabilities Lease liabilities Notes 24 false false R25.htm 2157118 - Disclosure - Provisions Sheet http://www.sequans.com/role/Provisions Provisions Notes 25 false false R26.htm 2160119 - Disclosure - Other non-current liabilities Sheet http://www.sequans.com/role/Othernoncurrentliabilities Other non-current liabilities Notes 26 false false R27.htm 2164120 - Disclosure - Foreign currency risk and fair value of financial instruments Sheet http://www.sequans.com/role/Foreigncurrencyriskandfairvalueoffinancialinstruments Foreign currency risk and fair value of financial instruments Notes 27 false false R28.htm 2168121 - Disclosure - Contingencies Sheet http://www.sequans.com/role/Contingencies Contingencies Notes 28 false false R29.htm 2170122 - Disclosure - Related party disclosures Sheet http://www.sequans.com/role/Relatedpartydisclosures Related party disclosures Notes 29 false false R30.htm 2172123 - Disclosure - Events after the reporting date Sheet http://www.sequans.com/role/Eventsafterthereportingdate Events after the reporting date Notes 30 false false R31.htm 2203201 - Disclosure - Basis of preparation and changes to the Company???s accounting policies (Policies) Sheet http://www.sequans.com/role/BasisofpreparationandchangestotheCompanysaccountingpoliciesPolicies Basis of preparation and changes to the Company???s accounting policies (Policies) Policies 31 false false R32.htm 2306301 - Disclosure - Segment information and disaggregated revenue disclosures (Tables) Sheet http://www.sequans.com/role/SegmentinformationanddisaggregatedrevenuedisclosuresTables Segment information and disaggregated revenue disclosures (Tables) Tables http://www.sequans.com/role/Segmentinformationanddisaggregatedrevenuedisclosures 32 false false R33.htm 2314302 - Disclosure - Interest expenses (Tables) Sheet http://www.sequans.com/role/InterestexpensesTables Interest expenses (Tables) Tables http://www.sequans.com/role/Interestexpenses 33 false false R34.htm 2317303 - Disclosure - Income tax (Tables) Sheet http://www.sequans.com/role/IncometaxTables Income tax (Tables) Tables http://www.sequans.com/role/Incometax 34 false false R35.htm 2321304 - Disclosure - Intangible assets (Tables) Sheet http://www.sequans.com/role/IntangibleassetsTables Intangible assets (Tables) Tables http://www.sequans.com/role/Intangibleassets 35 false false R36.htm 2324305 - Disclosure - Inventories (Tables) Sheet http://www.sequans.com/role/InventoriesTables Inventories (Tables) Tables http://www.sequans.com/role/Inventories 36 false false R37.htm 2328306 - Disclosure - Trade receivables and contract assets (Tables) Sheet http://www.sequans.com/role/TradereceivablesandcontractassetsTables Trade receivables and contract assets (Tables) Tables http://www.sequans.com/role/Tradereceivablesandcontractassets 37 false false R38.htm 2333307 - Disclosure - Cash and cash equivalents; short-term deposits (Tables) Sheet http://www.sequans.com/role/CashandcashequivalentsshorttermdepositsTables Cash and cash equivalents; short-term deposits (Tables) Tables http://www.sequans.com/role/Cashandcashequivalentsshorttermdeposits 38 false false R39.htm 2341308 - Disclosure - Share-based payment plans (Tables) Sheet http://www.sequans.com/role/SharebasedpaymentplansTables Share-based payment plans (Tables) Tables http://www.sequans.com/role/Sharebasedpaymentplans 39 false false R40.htm 2353309 - Disclosure - Lease liabilities (Tables) Sheet http://www.sequans.com/role/LeaseliabilitiesTables Lease liabilities (Tables) Tables http://www.sequans.com/role/Leaseliabilities 40 false false R41.htm 2358310 - Disclosure - Provisions (Tables) Sheet http://www.sequans.com/role/ProvisionsTables Provisions (Tables) Tables http://www.sequans.com/role/Provisions 41 false false R42.htm 2361311 - Disclosure - Other non-current liabilities (Tables) Sheet http://www.sequans.com/role/OthernoncurrentliabilitiesTables Other non-current liabilities (Tables) Tables http://www.sequans.com/role/Othernoncurrentliabilities 42 false false R43.htm 2365312 - Disclosure - Foreign currency risk and fair value of financial instruments (Tables) Sheet http://www.sequans.com/role/ForeigncurrencyriskandfairvalueoffinancialinstrumentsTables Foreign currency risk and fair value of financial instruments (Tables) Tables http://www.sequans.com/role/Foreigncurrencyriskandfairvalueoffinancialinstruments 43 false false R44.htm 2404401 - Disclosure - Basis of preparation and changes to the Company???s accounting policies (Details) Sheet http://www.sequans.com/role/BasisofpreparationandchangestotheCompanysaccountingpoliciesDetails Basis of preparation and changes to the Company???s accounting policies (Details) Details http://www.sequans.com/role/BasisofpreparationandchangestotheCompanysaccountingpoliciesPolicies 44 false false R45.htm 2407402 - Disclosure - Segment information and disaggregated revenue disclosures - Narrative (Details) Sheet http://www.sequans.com/role/SegmentinformationanddisaggregatedrevenuedisclosuresNarrativeDetails Segment information and disaggregated revenue disclosures - Narrative (Details) Details http://www.sequans.com/role/SegmentinformationanddisaggregatedrevenuedisclosuresTables 45 false false R46.htm 2408403 - Disclosure - Segment information and disaggregated revenue disclosures - Schedule of Total Revenue by Geographic Region (Details) Sheet http://www.sequans.com/role/SegmentinformationanddisaggregatedrevenuedisclosuresScheduleofTotalRevenuebyGeographicRegionDetails Segment information and disaggregated revenue disclosures - Schedule of Total Revenue by Geographic Region (Details) Details 46 false false R47.htm 2409404 - Disclosure - Segment information and disaggregated revenue disclosures - Revenue (Details) Sheet http://www.sequans.com/role/SegmentinformationanddisaggregatedrevenuedisclosuresRevenueDetails Segment information and disaggregated revenue disclosures - Revenue (Details) Details http://www.sequans.com/role/SegmentinformationanddisaggregatedrevenuedisclosuresTables 47 false false R48.htm 2410405 - Disclosure - Segment information and disaggregated revenue disclosures - Major Customers (Details) Sheet http://www.sequans.com/role/SegmentinformationanddisaggregatedrevenuedisclosuresMajorCustomersDetails Segment information and disaggregated revenue disclosures - Major Customers (Details) Details 48 false false R49.htm 2412406 - Disclosure - Research tax credit receivable and product development costs capitalized (Details) Sheet http://www.sequans.com/role/ResearchtaxcreditreceivableandproductdevelopmentcostscapitalizedDetails Research tax credit receivable and product development costs capitalized (Details) Details http://www.sequans.com/role/Researchtaxcreditreceivableandproductdevelopmentcostscapitalized 49 false false R50.htm 2415407 - Disclosure - Interest expenses (Details) Sheet http://www.sequans.com/role/InterestexpensesDetails Interest expenses (Details) Details http://www.sequans.com/role/InterestexpensesTables 50 false false R51.htm 2418408 - Disclosure - Income tax - Schedule of Major Components of Income Tax Expense (Details) Sheet http://www.sequans.com/role/IncometaxScheduleofMajorComponentsofIncomeTaxExpenseDetails Income tax - Schedule of Major Components of Income Tax Expense (Details) Details 51 false false R52.htm 2419409 - Disclosure - Income tax - Narrative (Details) Sheet http://www.sequans.com/role/IncometaxNarrativeDetails Income tax - Narrative (Details) Details 52 false false R53.htm 2422410 - Disclosure - Intangible assets (Details) Sheet http://www.sequans.com/role/IntangibleassetsDetails Intangible assets (Details) Details http://www.sequans.com/role/IntangibleassetsTables 53 false false R54.htm 2425411 - Disclosure - Inventories - Schedule of Inventories (Details) Sheet http://www.sequans.com/role/InventoriesScheduleofInventoriesDetails Inventories - Schedule of Inventories (Details) Details 54 false false R55.htm 2426412 - Disclosure - Inventories - Narrative (Details) Sheet http://www.sequans.com/role/InventoriesNarrativeDetails Inventories - Narrative (Details) Details 55 false false R56.htm 2429413 - Disclosure - Trade receivables and contract assets - Schedule of Non-Interest Bearing Trade Receivables (Details) Sheet http://www.sequans.com/role/TradereceivablesandcontractassetsScheduleofNonInterestBearingTradeReceivablesDetails Trade receivables and contract assets - Schedule of Non-Interest Bearing Trade Receivables (Details) Details 56 false false R57.htm 2430414 - Disclosure - Trade receivables and contract assets - Schedule of Movements in the Provision for Impairment of Receivables (Details) Sheet http://www.sequans.com/role/TradereceivablesandcontractassetsScheduleofMovementsintheProvisionforImpairmentofReceivablesDetails Trade receivables and contract assets - Schedule of Movements in the Provision for Impairment of Receivables (Details) Details 57 false false R58.htm 2431415 - Disclosure - Trade receivables and contract assets - Aging Analysis of Trade Receivables That Were Not Impaired (Details) Sheet http://www.sequans.com/role/TradereceivablesandcontractassetsAgingAnalysisofTradeReceivablesThatWereNotImpairedDetails Trade receivables and contract assets - Aging Analysis of Trade Receivables That Were Not Impaired (Details) Details 58 false false R59.htm 2434416 - Disclosure - Cash and cash equivalents; short-term deposits - Schedule of Cash, Cash Equivalents, and Deposits (Details) Sheet http://www.sequans.com/role/CashandcashequivalentsshorttermdepositsScheduleofCashCashEquivalentsandDepositsDetails Cash and cash equivalents; short-term deposits - Schedule of Cash, Cash Equivalents, and Deposits (Details) Details 59 false false R60.htm 2435417 - Disclosure - Cash and cash equivalents; short-term deposits - Schedule of Cash, Cash Equivalents, and Deposits Held by Currency (Details) Sheet http://www.sequans.com/role/CashandcashequivalentsshorttermdepositsScheduleofCashCashEquivalentsandDepositsHeldbyCurrencyDetails Cash and cash equivalents; short-term deposits - Schedule of Cash, Cash Equivalents, and Deposits Held by Currency (Details) Details 60 false false R61.htm 2437418 - Disclosure - Issued capital and reserves - Authorized capital, in number of shares (Details) Sheet http://www.sequans.com/role/IssuedcapitalandreservesAuthorizedcapitalinnumberofsharesDetails Issued capital and reserves - Authorized capital, in number of shares (Details) Details 61 false false R62.htm 2438419 - Disclosure - Issued capital and reserves - Shares issued and fully paid (Details) Sheet http://www.sequans.com/role/IssuedcapitalandreservesSharesissuedandfullypaidDetails Issued capital and reserves - Shares issued and fully paid (Details) Details 62 false false R63.htm 2439420 - Disclosure - Issued capital and reserves - Capital transactions (Details) Sheet http://www.sequans.com/role/IssuedcapitalandreservesCapitaltransactionsDetails Issued capital and reserves - Capital transactions (Details) Details 63 false false R64.htm 2442421 - Disclosure - Share-based payment plans - Narrative (Details) Sheet http://www.sequans.com/role/SharebasedpaymentplansNarrativeDetails Share-based payment plans - Narrative (Details) Details 64 false false R65.htm 2443422 - Disclosure - Share-based payment plans - Breakdown (Details) Sheet http://www.sequans.com/role/SharebasedpaymentplansBreakdownDetails Share-based payment plans - Breakdown (Details) Details 65 false false R66.htm 2445423 - Disclosure - Government grant advances and loans (Details) Sheet http://www.sequans.com/role/GovernmentgrantadvancesandloansDetails Government grant advances and loans (Details) Details http://www.sequans.com/role/Governmentgrantadvancesandloans 66 false false R67.htm 2447424 - Disclosure - Venture debt (Details) Sheet http://www.sequans.com/role/VenturedebtDetails Venture debt (Details) Details http://www.sequans.com/role/Venturedebt 67 false false R68.htm 2449425 - Disclosure - Convertible debt (Details) Sheet http://www.sequans.com/role/ConvertibledebtDetails Convertible debt (Details) Details http://www.sequans.com/role/Convertibledebt 68 false false R69.htm 2451426 - Disclosure - Accounts receivable financing agreement (Details) Sheet http://www.sequans.com/role/AccountsreceivablefinancingagreementDetails Accounts receivable financing agreement (Details) Details http://www.sequans.com/role/Accountsreceivablefinancingagreement 69 false false R70.htm 2454427 - Disclosure - Lease liabilities - Right-of-use Assets Activity (Details) Sheet http://www.sequans.com/role/LeaseliabilitiesRightofuseAssetsActivityDetails Lease liabilities - Right-of-use Assets Activity (Details) Details 70 false false R71.htm 2455428 - Disclosure - Lease liabilities - Lease Liabilities Activity (Details) Sheet http://www.sequans.com/role/LeaseliabilitiesLeaseLiabilitiesActivityDetails Lease liabilities - Lease Liabilities Activity (Details) Details 71 false false R72.htm 2456429 - Disclosure - Lease liabilities - Narrative (Details) Sheet http://www.sequans.com/role/LeaseliabilitiesNarrativeDetails Lease liabilities - Narrative (Details) Details 72 false false R73.htm 2459430 - Disclosure - Provisions - Reconciliation of Changes in Provisions (Details) Sheet http://www.sequans.com/role/ProvisionsReconciliationofChangesinProvisionsDetails Provisions - Reconciliation of Changes in Provisions (Details) Details 73 false false R74.htm 2462431 - Disclosure - Other non-current liabilities - Schedule of Other Non-Current Liabilities (Details) Sheet http://www.sequans.com/role/OthernoncurrentliabilitiesScheduleofOtherNonCurrentLiabilitiesDetails Other non-current liabilities - Schedule of Other Non-Current Liabilities (Details) Details 74 false false R75.htm 2463432 - Disclosure - Other non-current liabilities - Narrative (Details) Sheet http://www.sequans.com/role/OthernoncurrentliabilitiesNarrativeDetails Other non-current liabilities - Narrative (Details) Details 75 false false R76.htm 2466433 - Disclosure - Foreign currency risk and fair value of financial instruments - Schedule of Present Fair Values of Derivative Financial Instruments (Details) Sheet http://www.sequans.com/role/ForeigncurrencyriskandfairvalueoffinancialinstrumentsScheduleofPresentFairValuesofDerivativeFinancialInstrumentsDetails Foreign currency risk and fair value of financial instruments - Schedule of Present Fair Values of Derivative Financial Instruments (Details) Details 76 false false R77.htm 2467434 - Disclosure - Foreign currency risk and fair value of financial instruments - Narrative (Details) Sheet http://www.sequans.com/role/ForeigncurrencyriskandfairvalueoffinancialinstrumentsNarrativeDetails Foreign currency risk and fair value of financial instruments - Narrative (Details) Details http://www.sequans.com/role/ForeigncurrencyriskandfairvalueoffinancialinstrumentsTables 77 false false R78.htm 2469435 - Disclosure - Contingencies (Details) Sheet http://www.sequans.com/role/ContingenciesDetails Contingencies (Details) Details http://www.sequans.com/role/Contingencies 78 false false R79.htm 2471436 - Disclosure - Related party disclosures - Narrative (Details) Sheet http://www.sequans.com/role/RelatedpartydisclosuresNarrativeDetails Related party disclosures - Narrative (Details) Details 79 false false R80.htm 2473437 - Disclosure - Events after the reporting date (Details) Sheet http://www.sequans.com/role/EventsafterthereportingdateDetails Events after the reporting date (Details) Details http://www.sequans.com/role/Eventsafterthereportingdate 80 false false All Reports Book All Reports sqns-20200930.htm sqns-20200930.xsd sqns-20200930_cal.xml sqns-20200930_def.xml sqns-20200930_lab.xml sqns-20200930_pre.xml http://xbrl.sec.gov/country/2017-01-31 http://fasb.org/srt/2019-01-31 http://xbrl.sec.gov/dei/2019-01-31 http://xbrl.ifrs.org/taxonomy/2019-03-27/ifrs-full http://xbrl.sec.gov/currency/2019-01-31 true true