3.23.1 html 315 470 1 false 114 0 false 11 false false R1.htm 00090 - Document - Document and Entity Information Sheet http://can.com/role/DocumentDocumentAndEntityInformation Document and Entity Information Cover 1 false false R2.htm 00100 - Statement - CONSOLIDATED BALANCE SHEETS Sheet http://can.com/role/StatementConsolidatedBalanceSheets CONSOLIDATED BALANCE SHEETS Statements 2 false false R3.htm 00105 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) Sheet http://can.com/role/StatementConsolidatedBalanceSheetsParenthetical CONSOLIDATED BALANCE SHEETS (Parenthetical) Statements 3 false false R4.htm 00200 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) Sheet http://can.com/role/StatementConsolidatedStatementsOfComprehensiveIncomeLoss CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) Statements 4 false false R5.htm 00205 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) Sheet http://can.com/role/StatementConsolidatedStatementsOfComprehensiveIncomeLossParenthetical CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) Statements 5 false false R6.htm 00300 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY Sheet http://can.com/role/StatementConsolidatedStatementsOfChangesInShareholdersEquity CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY Statements 6 false false R7.htm 00400 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://can.com/role/StatementConsolidatedStatementsOfCashFlows CONSOLIDATED STATEMENTS OF CASH FLOWS Statements 7 false false R8.htm 10101 - Disclosure - Organization and Principal Activities Sheet http://can.com/role/DisclosureOrganizationAndPrincipalActivities Organization and Principal Activities Notes 8 false false R9.htm 10201 - Disclosure - Summary of significant accounting policies Sheet http://can.com/role/DisclosureSummaryOfSignificantAccountingPolicies Summary of significant accounting policies Notes 9 false false R10.htm 10301 - Disclosure - Risks and Concentration Sheet http://can.com/role/DisclosureRisksAndConcentration Risks and Concentration Notes 10 false false R11.htm 10401 - Disclosure - Restricted cash Sheet http://can.com/role/DisclosureRestrictedCash Restricted cash Notes 11 false false R12.htm 10501 - Disclosure - Inventories Sheet http://can.com/role/DisclosureInventories Inventories Notes 12 false false R13.htm 10601 - Disclosure - Prepayments and Other Assets Sheet http://can.com/role/DisclosurePrepaymentsAndOtherAssets Prepayments and Other Assets Notes 13 false false R14.htm 10701 - Disclosure - Cryptocurrency Sheet http://can.com/role/DisclosureCryptocurrency Cryptocurrency Notes 14 false false R15.htm 10801 - Disclosure - Property, Equipment and Software Sheet http://can.com/role/DisclosurePropertyEquipmentAndSoftware Property, Equipment and Software Notes 15 false false R16.htm 10901 - Disclosure - Leases Sheet http://can.com/role/DisclosureLeases Leases Notes 16 false false R17.htm 11001 - Disclosure - Accrued Liabilities and Other Liabilities Sheet http://can.com/role/DisclosureAccruedLiabilitiesAndOtherLiabilities Accrued Liabilities and Other Liabilities Notes 17 false false R18.htm 11101 - Disclosure - Warrants Sheet http://can.com/role/DisclosureWarrants Warrants Notes 18 false false R19.htm 11201 - Disclosure - Ordinary shares Sheet http://can.com/role/DisclosureOrdinaryShares Ordinary shares Notes 19 false false R20.htm 11301 - Disclosure - Treasury Stock Sheet http://can.com/role/DisclosureTreasuryStock Treasury Stock Notes 20 false false R21.htm 11401 - Disclosure - Share-Based Compensation Sheet http://can.com/role/DisclosureShareBasedCompensation Share-Based Compensation Notes 21 false false R22.htm 11501 - Disclosure - Income Taxes Sheet http://can.com/role/DisclosureIncomeTaxes Income Taxes Notes 22 false false R23.htm 11601 - Disclosure - Related Party Transactions Sheet http://can.com/role/DisclosureRelatedPartyTransactions Related Party Transactions Notes 23 false false R24.htm 11701 - Disclosure - Basic and Diluted Earnings (Loss) Per Share Sheet http://can.com/role/DisclosureBasicAndDilutedEarningsLossPerShare Basic and Diluted Earnings (Loss) Per Share Notes 24 false false R25.htm 11801 - Disclosure - Contingencies Sheet http://can.com/role/DisclosureContingencies Contingencies Notes 25 false false R26.htm 11901 - Disclosure - Condensed Financial Information of the Parent Company Sheet http://can.com/role/DisclosureCondensedFinancialInformationOfParentCompany Condensed Financial Information of the Parent Company Notes 26 false false R27.htm 20202 - Disclosure - Summary of significant accounting policies (Policies) Sheet http://can.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies Summary of significant accounting policies (Policies) Policies 27 false false R28.htm 30103 - Disclosure - Organization and Principal Activities (Tables) Sheet http://can.com/role/DisclosureOrganizationAndPrincipalActivitiesTables Organization and Principal Activities (Tables) Tables http://can.com/role/DisclosureOrganizationAndPrincipalActivities 28 false false R29.htm 30203 - Disclosure - Summary of significant accounting policies (Tables) Sheet http://can.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables Summary of significant accounting policies (Tables) Tables http://can.com/role/DisclosureSummaryOfSignificantAccountingPolicies 29 false false R30.htm 30303 - Disclosure - Risks and Concentration (Tables) Sheet http://can.com/role/DisclosureRisksAndConcentrationTables Risks and Concentration (Tables) Tables http://can.com/role/DisclosureRisksAndConcentration 30 false false R31.htm 30503 - Disclosure - Inventories (Tables) Sheet http://can.com/role/DisclosureInventoriesTables Inventories (Tables) Tables http://can.com/role/DisclosureInventories 31 false false R32.htm 30603 - Disclosure - Prepayments and Other Assets (Tables) Sheet http://can.com/role/DisclosurePrepaymentsAndOtherAssetsTables Prepayments and Other Assets (Tables) Tables http://can.com/role/DisclosurePrepaymentsAndOtherAssets 32 false false R33.htm 30703 - Disclosure - Cryptocurrency (Tables) Sheet http://can.com/role/DisclosureCryptocurrencyTables Cryptocurrency (Tables) Tables http://can.com/role/DisclosureCryptocurrency 33 false false R34.htm 30803 - Disclosure - Property, Equipment and Software (Tables) Sheet http://can.com/role/DisclosurePropertyEquipmentAndSoftwareTables Property, Equipment and Software (Tables) Tables http://can.com/role/DisclosurePropertyEquipmentAndSoftware 34 false false R35.htm 30903 - Disclosure - Leases (Tables) Sheet http://can.com/role/DisclosureLeasesTables Leases (Tables) Tables http://can.com/role/DisclosureLeases 35 false false R36.htm 31003 - Disclosure - Accrued Liabilities and Other Liabilities (Tables) Sheet http://can.com/role/DisclosureAccruedLiabilitiesAndOtherLiabilitiesTables Accrued Liabilities and Other Liabilities (Tables) Tables http://can.com/role/DisclosureAccruedLiabilitiesAndOtherLiabilities 36 false false R37.htm 31103 - Disclosure - Warrants (Tables) Sheet http://can.com/role/DisclosureWarrantsTables Warrants (Tables) Tables http://can.com/role/DisclosureWarrants 37 false false R38.htm 31403 - Disclosure - Share-Based Compensation (Tables) Sheet http://can.com/role/DisclosureShareBasedCompensationTables Share-Based Compensation (Tables) Tables http://can.com/role/DisclosureShareBasedCompensation 38 false false R39.htm 31503 - Disclosure - Income Taxes (Tables) Sheet http://can.com/role/DisclosureIncomeTaxesTables Income Taxes (Tables) Tables http://can.com/role/DisclosureIncomeTaxes 39 false false R40.htm 31603 - Disclosure - Related Party Transactions (Tables) Sheet http://can.com/role/DisclosureRelatedPartyTransactionsTables Related Party Transactions (Tables) Tables http://can.com/role/DisclosureRelatedPartyTransactions 40 false false R41.htm 31703 - Disclosure - Basic and Diluted Earnings (Loss) Per Share (Tables) Sheet http://can.com/role/DisclosureBasicAndDilutedEarningsLossPerShareTables Basic and Diluted Earnings (Loss) Per Share (Tables) Tables http://can.com/role/DisclosureBasicAndDilutedEarningsLossPerShare 41 false false R42.htm 31903 - Disclosure - Condensed Financial Information of the Parent Company (Tables) Sheet http://can.com/role/DisclosureCondensedFinancialInformationOfParentCompanyTables Condensed Financial Information of the Parent Company (Tables) Tables http://can.com/role/DisclosureCondensedFinancialInformationOfParentCompany 42 false false R43.htm 40101 - Disclosure - Organization and Principal Activities - Schedule of Subsidiaries (Details) Sheet http://can.com/role/DisclosureOrganizationAndPrincipalActivitiesScheduleOfSubsidiariesDetails Organization and Principal Activities - Schedule of Subsidiaries (Details) Details 43 false false R44.htm 40201 - Disclosure - Summary of significant accounting policies (Details) Sheet http://can.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails Summary of significant accounting policies (Details) Details http://can.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables 44 false false R45.htm 40202 - Disclosure - Summary of significant accounting policies - Summary of Assets and liabilities Measured at Fair Value on a Recurring Basis (Details) Sheet http://can.com/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails Summary of significant accounting policies - Summary of Assets and liabilities Measured at Fair Value on a Recurring Basis (Details) Details 45 false false R46.htm 40203 - Disclosure - Summary of significant accounting policies - Summary of Cash and Cash Equivalents (Details) Sheet http://can.com/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfCashAndCashEquivalentsDetails Summary of significant accounting policies - Summary of Cash and Cash Equivalents (Details) Details 46 false false R47.htm 40204 - Disclosure - Summary of significant accounting policies - Schedule of Estimated Useful Lives (Details) Sheet http://can.com/role/DisclosureSummaryOfSignificantAccountingPoliciesScheduleOfEstimatedUsefulLivesDetails Summary of significant accounting policies - Schedule of Estimated Useful Lives (Details) Details 47 false false R48.htm 40205 - Disclosure - Summary of significant accounting policies - Summary of Revenue Segregated by Geographic Region (Details) Sheet http://can.com/role/DisclosureSummaryOfSignificantAccountingPoliciesSummaryOfRevenueSegregatedByGeographicRegionDetails Summary of significant accounting policies - Summary of Revenue Segregated by Geographic Region (Details) Details 48 false false R49.htm 40301 - Disclosure - Risks and Concentration - Summary of Accounts Receivable Concentration of Credit risk and Customers Contribution of Total Revenue (Details) Sheet http://can.com/role/DisclosureRisksAndConcentrationSummaryOfAccountsReceivableConcentrationOfCreditRiskAndCustomersContributionOfTotalRevenueDetails Risks and Concentration - Summary of Accounts Receivable Concentration of Credit risk and Customers Contribution of Total Revenue (Details) Details 49 false false R50.htm 40302 - Disclosure - Risks and Concentration (Details) Sheet http://can.com/role/DisclosureRisksAndConcentrationDetails Risks and Concentration (Details) Details http://can.com/role/DisclosureRisksAndConcentrationTables 50 false false R51.htm 40401 - Disclosure - Restricted cash (Details) Sheet http://can.com/role/DisclosureRestrictedCashDetails Restricted cash (Details) Details http://can.com/role/DisclosureRestrictedCash 51 false false R52.htm 40501 - Disclosure - Inventories - Schedule of Inventories (Details) Sheet http://can.com/role/DisclosureInventoriesScheduleOfInventoriesDetails Inventories - Schedule of Inventories (Details) Details 52 false false R53.htm 40502 - Disclosure - Inventories (Details) Sheet http://can.com/role/DisclosureInventoriesDetails Inventories (Details) Details http://can.com/role/DisclosureInventoriesTables 53 false false R54.htm 40601 - Disclosure - Prepayments and Other Assets - Summary of Prepayments and Other Assets (Details) Sheet http://can.com/role/DisclosurePrepaymentsAndOtherAssetsSummaryOfPrepaymentsAndOtherAssetsDetails Prepayments and Other Assets - Summary of Prepayments and Other Assets (Details) Details 54 false false R55.htm 40602 - Disclosure - Prepayments and Other Assets - Summary of Prepayments and Other Assets (Parenthetical) (Details) Sheet http://can.com/role/DisclosurePrepaymentsAndOtherAssetsSummaryOfPrepaymentsAndOtherAssetsParentheticalDetails Prepayments and Other Assets - Summary of Prepayments and Other Assets (Parenthetical) (Details) Details 55 false false R56.htm 40701 - Disclosure - Cryptocurrency - Schedule of Cryptocurrency (Details) Sheet http://can.com/role/DisclosureCryptocurrencyScheduleOfCryptocurrencyDetails Cryptocurrency - Schedule of Cryptocurrency (Details) Details 56 false false R57.htm 40702 - Disclosure - Cryptocurrency - Additional information (Details) Sheet http://can.com/role/DisclosureCryptocurrencyAdditionalInformationDetails Cryptocurrency - Additional information (Details) Details 57 false false R58.htm 40801 - Disclosure - Property, Equipment and Software - Schedule of Property, Equipment and Software (Details) Sheet http://can.com/role/DisclosurePropertyEquipmentAndSoftwareScheduleOfPropertyEquipmentAndSoftwareDetails Property, Equipment and Software - Schedule of Property, Equipment and Software (Details) Details 58 false false R59.htm 40802 - Disclosure - Property, Equipment and Software - Schedule of Depreciation and Amortization Expenses (Details) Sheet http://can.com/role/DisclosurePropertyEquipmentAndSoftwareScheduleOfDepreciationAndAmortizationExpensesDetails Property, Equipment and Software - Schedule of Depreciation and Amortization Expenses (Details) Details 59 false false R60.htm 40901 - Disclosure - Leases - Components of Lease Expenses (Details) Sheet http://can.com/role/DisclosureLeasesComponentsOfLeaseExpensesDetails Leases - Components of Lease Expenses (Details) Details 60 false false R61.htm 40902 - Disclosure - Leases - Summary of Supplemental Cash Flow Information Related to Leases (Details) Sheet http://can.com/role/DisclosureLeasesSummaryOfSupplementalCashFlowInformationRelatedToLeasesDetails Leases - Summary of Supplemental Cash Flow Information Related to Leases (Details) Details 61 false false R62.htm 40903 - Disclosure - Leases - Summary of Supplemental Balance Sheet Information Related to Leases (Details) Sheet http://can.com/role/DisclosureLeasesSummaryOfSupplementalBalanceSheetInformationRelatedToLeasesDetails Leases - Summary of Supplemental Balance Sheet Information Related to Leases (Details) Details 62 false false R63.htm 40904 - Disclosure - Leases - Schedule of Maturities of Lease Liabilities (Details) Sheet http://can.com/role/DisclosureLeasesScheduleOfMaturitiesOfLeaseLiabilitiesDetails Leases - Schedule of Maturities of Lease Liabilities (Details) Details 63 false false R64.htm 41001 - Disclosure - Accrued Liabilities and Other Liabilities - Schedule of Accrued Liabilities and Other Liabilities (Details) Sheet http://can.com/role/DisclosureAccruedLiabilitiesAndOtherLiabilitiesScheduleOfAccruedLiabilitiesAndOtherLiabilitiesDetails Accrued Liabilities and Other Liabilities - Schedule of Accrued Liabilities and Other Liabilities (Details) Details 64 false false R65.htm 41002 - Disclosure - Accrued Liabilities and Other Liabilities - Schedule of Accrued Liabilities and Other Liabilities (Parenthetical) (Details) Sheet http://can.com/role/DisclosureAccruedLiabilitiesAndOtherLiabilitiesScheduleOfAccruedLiabilitiesAndOtherLiabilitiesParentheticalDetails Accrued Liabilities and Other Liabilities - Schedule of Accrued Liabilities and Other Liabilities (Parenthetical) (Details) Details 65 false false R66.htm 41003 - Disclosure - Accrued liabilities and other liabilities - Schedule of Product Warranty Liability (Details) Sheet http://can.com/role/DisclosureAccruedLiabilitiesAndOtherLiabilitiesScheduleOfProductWarrantyLiabilityDetails Accrued liabilities and other liabilities - Schedule of Product Warranty Liability (Details) Details 66 false false R67.htm 41101 - Disclosure - Warrants - Summary of Significant Unobservable Inputs Used In Calculation Of Warrant Liability (Details) Sheet http://can.com/role/DisclosureWarrantsSummaryOfSignificantUnobservableInputsUsedInCalculationOfWarrantLiabilityDetails Warrants - Summary of Significant Unobservable Inputs Used In Calculation Of Warrant Liability (Details) Details 67 false false R68.htm 41102 - Disclosure - Warrants - Additional Information (Details) Sheet http://can.com/role/DisclosureWarrantsAdditionalInformationDetails Warrants - Additional Information (Details) Details 68 false false R69.htm 41103 - Disclosure - Warrants - Movement of warrant liability (Details) Sheet http://can.com/role/DisclosureWarrantsMovementOfWarrantLiabilityDetails Warrants - Movement of warrant liability (Details) Details 69 false false R70.htm 41201 - Disclosure - Ordinary shares - Additional Information (Details) Sheet http://can.com/role/DisclosureOrdinarySharesAdditionalInformationDetails Ordinary shares - Additional Information (Details) Details 70 false false R71.htm 41301 - Disclosure - Treasury Stocks - Additional Information (Details) Sheet http://can.com/role/DisclosureTreasuryStocksAdditionalInformationDetails Treasury Stocks - Additional Information (Details) Details 71 false false R72.htm 41401 - Disclosure - Share-Based Compensation - Additional Information (Details) Sheet http://can.com/role/DisclosureShareBasedCompensationAdditionalInformationDetails Share-Based Compensation - Additional Information (Details) Details 72 false false R73.htm 41402 - Disclosure - Share-Based Compensation - Summary of Restricted Shares Activity (Details) Sheet http://can.com/role/DisclosureShareBasedCompensationSummaryOfRestrictedSharesActivityDetails Share-Based Compensation - Summary of Restricted Shares Activity (Details) Details 73 false false R74.htm 41403 - Disclosure - Share-based compensation - Schedule of Stock Options Activity (Details) Sheet http://can.com/role/DisclosureShareBasedCompensationScheduleOfStockOptionsActivityDetails Share-based compensation - Schedule of Stock Options Activity (Details) Details 74 false false R75.htm 41404 - Disclosure - Share-based compensation - Summary of Fair Values of the Share Options Granted (Details) Sheet http://can.com/role/DisclosureShareBasedCompensationSummaryOfFairValuesOfShareOptionsGrantedDetails Share-based compensation - Summary of Fair Values of the Share Options Granted (Details) Details 75 false false R76.htm 41405 - Disclosure - Share-based compensation - Summary of Assumptions Used to determine the Fair Value of Stock Options (Details) Sheet http://can.com/role/DisclosureShareBasedCompensationSummaryOfAssumptionsUsedToDetermineFairValueOfStockOptionsDetails Share-based compensation - Summary of Assumptions Used to determine the Fair Value of Stock Options (Details) Details 76 false false R77.htm 41501 - Disclosure - Income Taxes - Additional Information (Details) Sheet http://can.com/role/DisclosureIncomeTaxesAdditionalInformationDetails Income Taxes - Additional Information (Details) Details 77 false false R78.htm 41502 - Disclosure - Income Taxes - Schedule of Reconciliation Between Effective Income Tax Rate and PRC Statutory Income Tax Rate (Details) Sheet http://can.com/role/DisclosureIncomeTaxesScheduleOfReconciliationBetweenEffectiveIncomeTaxRateAndPrcStatutoryIncomeTaxRateDetails Income Taxes - Schedule of Reconciliation Between Effective Income Tax Rate and PRC Statutory Income Tax Rate (Details) Details 78 false false R79.htm 41503 - Disclosure - Income Taxes - Schedule of Composition of Income Tax Expense (Details) Sheet http://can.com/role/DisclosureIncomeTaxesScheduleOfCompositionOfIncomeTaxExpenseDetails Income Taxes - Schedule of Composition of Income Tax Expense (Details) Details 79 false false R80.htm 41504 - Disclosure - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) Sheet http://can.com/role/DisclosureIncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) Details 80 false false R81.htm 41505 - Disclosure - Income Taxes - Schedule of Movement of Valuation Allowance (Details) Sheet http://can.com/role/DisclosureIncomeTaxesScheduleOfMovementOfValuationAllowanceDetails Income Taxes - Schedule of Movement of Valuation Allowance (Details) Details 81 false false R82.htm 41601 - Disclosure - Related Party Transaction - Additional Information (Details) Sheet http://can.com/role/DisclosureRelatedPartyTransactionAdditionalInformationDetails Related Party Transaction - Additional Information (Details) Details 82 false false R83.htm 41602 - Disclosure - Related Party Transactions - Schedule of Related Party Transactions (Details) Sheet http://can.com/role/DisclosureRelatedPartyTransactionsScheduleOfRelatedPartyTransactionsDetails Related Party Transactions - Schedule of Related Party Transactions (Details) Details 83 false false R84.htm 41701 - Disclosure - Basic and Diluted Earnings (Loss) Per Share - Computation of Basic and Diluted Earnings Per Share (Details) Sheet http://can.com/role/DisclosureBasicAndDilutedEarningsLossPerShareComputationOfBasicAndDilutedEarningsPerShareDetails Basic and Diluted Earnings (Loss) Per Share - Computation of Basic and Diluted Earnings Per Share (Details) Details http://can.com/role/DisclosureBasicAndDilutedEarningsLossPerShareTables 84 false false R85.htm 41702 - Disclosure - Basic and Diluted Earnings (Loss) Per Share - Effects of Outstanding RSUs Excluded From Computation of Diluted Loss Per Share Due to Anti-Dilutive Effect (Details) Sheet http://can.com/role/DisclosureBasicAndDilutedEarningsLossPerShareEffectsOfOutstandingRsusExcludedFromComputationOfDilutedLossPerShareDueToAntiDilutiveEffectDetails Basic and Diluted Earnings (Loss) Per Share - Effects of Outstanding RSUs Excluded From Computation of Diluted Loss Per Share Due to Anti-Dilutive Effect (Details) Details http://can.com/role/DisclosureBasicAndDilutedEarningsLossPerShareTables 85 false false R86.htm 41801 - Disclosure - Contingencies (Details) Sheet http://can.com/role/DisclosureContingenciesDetails Contingencies (Details) Details http://can.com/role/DisclosureContingencies 86 false false R87.htm 41901 - Disclosure - Condensed Financial Information of the Parent Company - Additional Information (Details) Sheet http://can.com/role/DisclosureCondensedFinancialInformationOfParentCompanyAdditionalInformationDetails Condensed Financial Information of the Parent Company - Additional Information (Details) Details 87 false false R88.htm 41902 - Disclosure - Condensed Financial Information of the Parent Company - Schedule of Condensed Balance Sheets (Details) Sheet http://can.com/role/DisclosureCondensedFinancialInformationOfParentCompanyScheduleOfCondensedBalanceSheetsDetails Condensed Financial Information of the Parent Company - Schedule of Condensed Balance Sheets (Details) Details 88 false false R89.htm 41903 - Disclosure - Condensed Financial Information of the Parent Company - Schedule of Condensed Statements of Comprehensive Loss (Details) Sheet http://can.com/role/DisclosureCondensedFinancialInformationOfParentCompanyScheduleOfCondensedStatementsOfComprehensiveLossDetails Condensed Financial Information of the Parent Company - Schedule of Condensed Statements of Comprehensive Loss (Details) Details 89 false false R90.htm 41904 - Disclosure - Condensed Financial Information of the Parent Company - Schedule of Condensed Statements of Cash Flows (Details) Sheet http://can.com/role/DisclosureCondensedFinancialInformationOfParentCompanyScheduleOfCondensedStatementsOfCashFlowsDetails Condensed Financial Information of the Parent Company - Schedule of Condensed Statements of Cash Flows (Details) Details 90 false false All Reports Book All Reports [dq-0542-Deprecated-Concept] Concept PropertyPlantAndEquipmentEstimatedUsefulLives in us-gaap/2022 used in 1 facts was deprecated in us-gaap/2023 as of 2023 and should not be used. can-20221231x20f.htm 143 [dq-0542-Deprecated-Concept] Concept DueFromRelatedPartiesCurrent in us-gaap/2022 used in 2 facts was deprecated in us-gaap/2023 as of 2023 and should not be used. can-20221231x20f.htm 164 [dq-0548-EntityAddressCityOrTown-Missing] Submission type 20-F should have a non-empty value for EntityAddressCityOrTown in the Required Context. can-20221231x20f.htm [dq-0551-EntityAddressCityOrTown-Missing] Submission type 20-F should have a non-empty value for EntityAddressCityOrTown in the context with EntityAddressesAddressTypeAxis and BusinessContactMember or UsAgentContactMember. can-20221231x20f.htm [ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 1 fact(s) appearing in ix:hidden were eligible for transformation: us-gaap:PropertyPlantAndEquipmentUsefulLife - can-20221231x20f.htm 9 [ix-0514-Hidden-Fact-Not-Referenced] WARN: 3 fact(s) appearing in ix:hidden were not referenced by any -sec-ix-hidden style property: us-gaap:CommitmentsAndContingencies - can-20221231x20f.htm 9 can-20221231x20f.htm can-20221231.xsd can-20221231_cal.xml can-20221231_def.xml can-20221231_lab.xml can-20221231_pre.xml can-20221231xex12d1.htm can-20221231xex12d2.htm can-20221231xex13d1.htm can-20221231xex13d2.htm can-20221231xex15d2.htm can-20221231xex15d3.htm can-20221231xex15d4.htm can-20221231xex8d1.htm can-20221231x20f002.jpg http://fasb.org/srt/2022 http://fasb.org/us-gaap/2022 http://xbrl.sec.gov/dei/2022 true true