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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FMRClearingFeeAgreementExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of FMR clearing fee agreement expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Number of reportable segments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Reportable segment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NumberOfReportableSegments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Number of Reportable Segments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock, par value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, par value (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Par or Stated Value Per Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization and Basis of Presentation [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common Stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Component [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OrganizationAndBasisOfPresentationTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Organization and Basis of Presentation [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeBenefitsAndShareBasedCompensationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Benefit Plans [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Plan Name [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Plan Name [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InvestmentInEquitySecurityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment in Equity Security [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrealized gain</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrealizedGainLossOnDerivatives_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrealized Gain (Loss) on Derivatives</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Components [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfPurchasePriceAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Purchase Price [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AssetAcquisitionScheduleOfPurchasePriceTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition - Schedule Of Purchase Price [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashPaymentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Payment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashPaymentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Payment Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DirectTransactionCostsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Direct Transaction Costs [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DirectTransactionCostsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Direct Transaction Costs Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Acquisition [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Purchase Price [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionConsiderationTransferred_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Total cost acquisition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionConsiderationTransferred_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consideration</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionConsiderationTransferred_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition, Consideration Transferred</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Estimated useful life</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, Useful Life</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_TitleOfIndividualWithRelationshipToEntityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title and Position [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RecordedMastersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Recorded Masters [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RecordedMastersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Recorded Masters Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferredAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Consideration:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferredAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Consideration Transferred [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionConsiderationTransferredAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets acquired:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionConsiderationTransferredAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition, Consideration Transferred [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AssetAcquisitionAllocatedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Assets acquired</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AssetAcquisitionAllocatedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition Allocated Cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AssetAcquisitionAllocatedCost_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of asset acquired allocated costs.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ReceivablesFromPayablesToAndDepositsWithBrokerDealersAndClearingOrganizationsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivables from, Payables to, and Deposits with Broker-Dealers and Clearing Organizations [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_TitleOfIndividualAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title and Position [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MSCOSharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">MSCO shares of DTCC [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MSCOSharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">MSCOShares Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MSCOSharesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">MSCO shares [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivables from, Payables to, and Deposits with Broker-Dealers and Clearing Organizations [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Common stock value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, $0.01 par value; 100,000,000 shares authorized;42,100,936 shares issued and 41,100,936 shares outstanding as of June 30, 2026, respectively. 41,435,936 shares issued and 40,435,936 shares outstanding as of December 31, 2025, respectively.</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CertificatesOfDepositMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Certificates of deposit [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CertificatesOfDepositMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Certificates of Deposit [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities owned, at fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investments, Fair Value Disclosure</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentSoldNotYetPurchasedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Securities sold, not yet purchased, at fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentSoldNotYetPurchasedAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Sold Short, Fair Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfUSGovernmentSecuritiesWithTheMarketValuesAndMaturityDatesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of U.S. Government Securities with the Market Values and Maturity Dates [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesHeldToMaturityPastDueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity, Past Due [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquitySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity securities [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquitySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Equity securities [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquitySecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Securities [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Options [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OptionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Options Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashAndSecuritiesSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and securities segregated for regulatory purposes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashAndSecuritiesSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash And Securities Segregated For Regulatory Purposes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashAndSecuritiesSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash and securities segregated for regulatory purposes.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MeasurementInputTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Measurement Input Type [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MaturingInTwoThousandTwentySixMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturing in 2026 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MaturingInTwoThousandTwentySixMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturing In Two Thousand Twenty Six Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MaturingInTwoThousandTwentySevenMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturing in 2027 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MaturingInTwoThousandTwentySevenMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturing In Two Thousand Twenty Seven Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MaturingInTwoThousandTwentyEightMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maturing in 2028 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MaturingInTwoThousandTwentyEightMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maturing In Two Thousand Twenty Eight Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AccruedInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accrued interest [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AccruedInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accrued Interest Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of U.S. Government Securities with the Market Values and Maturity Dates [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MoneyMarketFundsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Market value of investment in U.S. government securities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MoneyMarketFundsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Equivalent, Money Market Fund, Carrying Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statistical Measurement [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research and Development Arrangement, Contract to Perform for Others, Type [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_SoftwareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Software [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_SoftwareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Software Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Software, Net [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Future Amortization of Software Assets [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Software [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_SoftwareNetScheduleOfFutureAmortizationOfSoftwareAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Software, Net - Schedule of Future Amortization of Software Assets [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, Class [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ComputerSoftwareIntangibleAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Software Assets [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ComputerSoftwareIntangibleAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Computer Software Intangible Assets Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2027</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2028</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2029</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, after Accumulated Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCostAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Lease Cost [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average remaining lease term &#8211; operating leases (in years)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Weighted Average Remaining Lease Term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowFinancingActivitiesLesseeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease right-of-use assets obtained in exchange for new lease liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowFinancingActivitiesLesseeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Flow, Financing Activities, Lessee [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating leases</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Right-of-Use Asset Obtained in Exchange for Operating Lease Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2027</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year One</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfFinancialAssetsAndLiabilitiesNotMeasuredAtFairValueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Financial Assets and Liabilities not Measured at Fair Value [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Financial Assets and Liabilities not Measured at Fair Value [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Name [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FairValueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FairValueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Hierarchy and NAV [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 1 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 1 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 2 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 2 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Level 3 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value, Inputs, Level 3 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsAndOtherReceivablesNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivables from non-customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsAndOtherReceivablesNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts and Other Receivables, Net, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivables from broker-dealers and clearing organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesFromBrokersDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivable from Broker-Dealer and Clearing Organization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsWithClearingOrganizationsAndOthersSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deposits with broker-dealers and clearing organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsWithClearingOrganizationsAndOthersSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposits with Clearing Organizations and Others, Securities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TotalFinancialAssetsNotMeasuredAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total financial assets, not measured at fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TotalFinancialAssetsNotMeasuredAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Total Financial Assets Not Measured At Fair Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TotalFinancialAssetsNotMeasuredAtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Total financial assets, not measured at fair value.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial liabilities, not measured at fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Lived Asset, Class [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PropertyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PropertyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OfficeEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Office facilities [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OfficeEquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Office Equipment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equipment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquipmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equipment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Property, Office Facilities, and Equipment [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property, Office Facilities, and Equipment, Net [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Property, office facilities, and equipment, Gross</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Office Facilities, and Equipment, Net [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PropertyOfficeFacilitiesAndEquipmentNetTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property, Office Facilities, and Equipment, Net [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PropertyOfficeFacilitiesAndEquipmentNetTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property Office Facilities And Equipment, Net [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research and Development Arrangement, Contract to Perform for Others, Type [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OtherSoftwareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retail Platform [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OtherSoftwareMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Software Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2026</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event Type [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Event [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Events [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Event [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Ownership interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity Method Investment, Ownership Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpenseSoftwareExcludingAcquiredInProcessCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Software development total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ResearchAndDevelopmentExpenseSoftwareExcludingAcquiredInProcessCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Research and Development Expense, Software (Excluding Acquired in Process Cost)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_UnderwritingFeeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Underwriting fees [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_UnderwritingFeeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Underwriting Fee Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FinancialAdvisoryFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial advisory fees [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FinancialAdvisoryFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Advisory Fees Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenuesFromContractsWithCustomersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues from Contracts with Customers [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenuesFromContractsWithCustomersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues From Contracts With Customers Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ProprietaryTradingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Proprietary trading [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ProprietaryTradingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proprietary Trading Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ConvertiblePromissoryNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Convertible Promissory Note [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ConvertiblePromissoryNoteMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Promissory Note Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongtermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Type [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Convertible Debt [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ConvertibleDebtMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Convertible Debt [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInvestmentsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments, Cost [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Principal amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Face Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate, Stated Percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments, cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentOwnedAtCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Owned, Cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Facility [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MortgageWithEastWestBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">East West Bank [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MortgageWithEastWestBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mortgage With East West Bank Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TermLoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Term Loan [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TermLoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Term Loan Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TermLoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Term Loan [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_EastWestBancorpIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">East West Bancorp Inc [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_EastWestBancorpIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">East West Bancorp Inc Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OfficeBuildingBuildOut_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Office building build out</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OfficeBuildingBuildOut_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Office Building Build Out</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OfficeBuildingBuildOut_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the amount of office building build out.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Outstanding balance of mortgage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuredLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Secured Long-Term Debt, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Loan term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Term loan description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturities, Repayment Terms</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtPercentageBearingFixedInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest rate, percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtPercentageBearingFixedInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Percentage Bearing Fixed Interest, Percentage Rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_LineOfCreditFacilityInterestRateTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest rate terms</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_LineOfCreditFacilityInterestRateTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line Of Credit Facility Interest Rate Terms</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_LineOfCreditFacilityInterestRateTerms_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the line of credit facility, interest rate terms.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InterestRateLineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest rate line of credit, percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InterestRateLineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Rate Line Of Credit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InterestRateLineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Interest rate line of credit.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DebtServiceCoverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt service coverage ratio, description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DebtServiceCoverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Service Coverage Ratio</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DebtServiceCoverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The description of debt service coverage ratio.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Less: difference between undiscounted cash flows and discounted cash flows</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, Undiscounted Excess Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Future Annual Minimum Payments [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2028</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year Two</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2029</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Year Three</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfSecuritiesBorrowingAndLendingActivityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Securities Borrowing And Lending Activity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesReserveDepositRequiredAndMade_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deposit requirements amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesReserveDepositRequiredAndMade_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Reserve Deposit Required and Made</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_SpecialReserveAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Special reserve account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_SpecialReserveAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Special Reserve Account</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_SpecialReserveAccount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of special reserve account.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ReserveAccountExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reserve account excess amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ReserveAccountExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reserve Account Excess Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ReserveAccountExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of reserve account excess amount.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NetCapitalInExcessOfItsMinimumRequirement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net capital in excess amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NetCapitalInExcessOfItsMinimumRequirement_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Excess net capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NetCapitalInExcessOfItsMinimumRequirement_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Capital In Excess Of Its Minimum Requirement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NetCapitalInExcessOfItsMinimumRequirement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Net capital in excess of its minimum requirement.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments with Off-Balance Sheet Risk [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial assets, not measured at fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MarginLoansExtended_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Margin loans extended</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MarginLoansExtended_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Margin Loans Extended</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MarginLoansExtended_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Margin loans extended.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ReceivablesFromCustomers1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivables from customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ReceivablesFromCustomers1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivables From Customers1</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ReceivablesFromCustomers1_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount due from customers for fees and charges arising from transactions related to the entity's brokerage activities and operations.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2027</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year One</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2028</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year Two</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2029</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year Three</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2030</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Year Four</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_BrokerageCommissionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Brokerage commissions [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_BrokerageCommissionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Brokerage Commissions Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DistributionFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Distribution fees [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DistributionFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Distribution Fees Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InsuranceCommissionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Insurance commissions [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InsuranceCommissionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Insurance Commissions Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MarketingAndDistributionFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Marketing and distribution fees [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MarketingAndDistributionFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Marketing And Distribution Fees Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RetailFeesrebatesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retail fees (rebates) [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RetailFeesrebatesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retail Feesrebates Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockLocateServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock locate services [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockLocateServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Locate Services Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AdministrativeFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Administrative fees [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AdministrativeFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Administrative Fees Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MarginInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Margin interest [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MarginInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Margin Interest Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Effective tax rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Federal statutory rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Uncertain tax position</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unrecognized Tax Benefits</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AlternativeExcessNetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net capital in excess amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AlternativeExcessNetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Excess Net Capital, Alternative Standard</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumNetCapitalRequiredForBrokerDealerSubsidiary1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Required net capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumNetCapitalRequiredForBrokerDealerSubsidiary1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Minimum Net Capital Required, Broker-Dealer Subsidiary, Aggregate Indebtedness Standard</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PercentageOfAggregateDebitBalanceToNetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Percentage of aggregate debit balance to net capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PercentageOfAggregateDebitBalanceToNetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Percentage Of Aggregate Debit Balance To Net Capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PercentageOfAggregateDebitBalanceToNetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of aggregate debit balance to net capital.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsPaidForSecuritiesBorrowedAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and securities deposits</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepositsPaidForSecuritiesBorrowedAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deposits Paid for Securities Borrowed, at Carrying Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashSegregatedUnderOtherRegulations_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashSegregatedUnderOtherRegulations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and securities segregated for regulatory purposes; (Cash of $126.8 million, securities with a fair value of $37.9 million as of June 30, 2026; Cash of $151.0 million, securities with a fair value of $34.6 million as of December 31, 2025)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashSegregatedUnderOtherRegulations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Segregated under Other Regulations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSegregatedUnderOtherRegulations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesSegregatedUnderOtherRegulations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Segregated under Other Regulations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashDepositsInExcessOfMinimumRequirement_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash deposits in excess of minimum requirement</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashDepositsInExcessOfMinimumRequirement_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash deposits in excess of minimum requirement.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Name [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_EquityMethodInvesteeNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment, Name [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FusionIQMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fusion IQ [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FusionIQMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fusion IQMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoanedGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Amounts of Recognized Assets and Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoanedGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Loaned, Subject to Master Netting Arrangement, before Offset</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoanedAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Amounts Offset in the Consolidated Statements of Financial Condition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoanedAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Loaned, Subject to Master Netting Arrangement, Asset Offset</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoaned_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net Amounts Presented in the Consolidated Statements of Financial Condition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoaned_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities loaned</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoaned_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Loaned</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NotesPayableGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">FMV -Collateral Received or Pledged</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NotesPayableGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable Gross</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NotesPayableGross_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amortized cost, before allowance for credit loss, of financing Payable. Excludes financing Payable covered under loss sharing agreement and net investment in lease.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NotesPayableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NotesPayableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Payable Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NotesPayableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Financing Payable, after Allowance for Credit Loss, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Basic and Diluted Earnings Per Common Share [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income (loss) per share attributable to common stockholders:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Attributable to Parent [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basic (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Diluted</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Diluted (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share, Diluted</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtByMaturityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Future Remaining Annual Minimum Principal Payments [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowedGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Amounts of Recognized Assets and Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowedGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Borrowed, Subject to Master Netting Arrangement, before Offset</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowedLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gross Amounts Offset in the Consolidated Statements of Financial Condition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowedLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Borrowed, Subject to Master Netting Arrangement, Liability Offset</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowed_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Net Amounts Presented in the Consolidated Statements of Financial Condition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowed_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities borrowed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowed_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Borrowed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">FMV -Collateral Received or Pledged</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, before Allowance for Credit Loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, after Allowance for Credit Loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income (loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income (loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Less net income (loss) attributable to noncontrolling interests</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Attributable to Noncontrolling Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net income (loss) available to common stockholders</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Available to Common Stockholders, Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Weighted-average common shares outstanding - basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Basic (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Weighted-average common shares used to compute diluted loss per share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted, Adjustment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PrincipalTransactionsAndProprietaryTradingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Principal transactions and proprietary trading [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PrincipalTransactionsAndProprietaryTradingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Principal Transactions And Proprietary Trading Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Anti-dilutive shares outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Common Share [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net income (loss) available to common stockholders per share of common stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_UnsettledCustomerTransactions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unsettled customer transactions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_UnsettledCustomerTransactions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Unsettled Customer Transactions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_UnsettledCustomerTransactions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Unsettled customer transactions.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgageLoansInProcessOfForeclosureAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mortgage amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgageLoansInProcessOfForeclosureAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mortgage Loans in Process of Foreclosure, Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PurchaseOptionsLand_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Office building</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PurchaseOptionsLand_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Purchase Options, Land</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Mortgages [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MortgagesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Mortgages [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_EastWestBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">East West Bank [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_EastWestBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">East West Bank Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_EastWestBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">East West Bank [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LegalEntityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Legal Entity [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Credit Facility [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_LongTermDebtTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-Term Debt [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_LongTermDebtTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long Term Debt [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt [Abstract]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stockholders' Equity, Other</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesAndLoansReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Notes receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesAndLoansReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesAndLoansReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financing Receivable, after Allowance for Credit Loss, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ArqitechIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Arqitech Inc [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ArqitechIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Arqitech Inc Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillAndIntangibleAssetImpairment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Impairment existed amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillAndIntangibleAssetImpairment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Including Goodwill, Impairment Loss, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNonredeemableNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Less net loss attributable to noncontrolling interests</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLossAttributableToNonredeemableNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Provision for (benefit from) income taxes</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashAndSecuritiesSegregatedForRegulatoryPurpose_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities segregated for regulatory purposes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashAndSecuritiesSegregatedForRegulatoryPurpose_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash And Securities Segregated For Regulatory Purpose</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashAndSecuritiesSegregatedForRegulatoryPurpose_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash and securities segregated for regulatory purposes.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInReceivablesFromCustomers_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Receivables from customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInReceivablesFromCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Receivables From Customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInReceivablesFromCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the amount of receivables from customers.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Receivables from non-customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts and Other Receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInBrokerageReceivables_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Receivables from and deposits with broker-dealers and clearing organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInBrokerageReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Receivable from Broker-Dealer and Clearing Organization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPayablesToBrokerDealers_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payables to broker-dealers and clearing organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPayablesToBrokerDealers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Payable to Broker-Dealer and Clearing Organization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Maximum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Maximum [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_BMOHarrisBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">BMO Harris Bank [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_BMOHarrisBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">BMOHarris Bank Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_BMOHarrisBankMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">BMO Harris Bank [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_BMOCreditAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">BMO Credit Agreement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_BMOCreditAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">BMOCredit Agreement Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revolving Credit Facility [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revolving Credit Facility [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Treasury stock, at cost (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Common, Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Cash Flows [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows From Operating Activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share-based compensation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Noncash Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnTerminationOfLease_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Interest related to contract termination liability payment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnTerminationOfLease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Termination of Lease</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Changes in</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid expenses and other assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense and Other Assets, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease right-of-use assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Right-of-Use Asset</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities sold, not yet purchased, at fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInFinancialInstrumentsSoldNotYetPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Financial Instruments Sold, Not yet Purchased</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net lease liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Operating Lease Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Taxes payable / receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Income Taxes Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireOtherProductiveAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Additions to property, office facilities, and equipment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireOtherProductiveAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Other Productive Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInPayablesToNonCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payables to non-customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInPayablesToNonCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Payables To Non Customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInPayablesToNonCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The change during the period, either increase or decrease, in amounts payable to non customers.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInDraftsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Drafts payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInDraftsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Drafts Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInDraftsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Increase decrease in draft payable.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInBusinessDevelopmentCredits_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">NFS business development credits</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInBusinessDevelopmentCredits_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Business Development Credits</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInBusinessDevelopmentCredits_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of NFS business development credits.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInOtherDeferredRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other deferred revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInOtherDeferredRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase Decrease In Other Deferred Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IncreaseDecreaseInOtherDeferredRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of increase (decrease) in Other deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NatureOfOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Organization and Basis of Presentation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NatureOfOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Nature of Operations [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurements [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair Value Measurements</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosures [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property, Office Facilities, and Equipment, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Software, Net [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityOwned_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities owned, at fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityOwned_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Owned and Sold, Not yet Purchased Fair Value, Security Owned</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Taxes receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Taxes Receivable, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Current assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Property, office facilities, and equipment, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Property, office facilities, and equipment, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedComputerSoftwareNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Software, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedComputerSoftwareNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Software, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedComputerSoftwareNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capitalized Cost, Software to be Sold, Leased, or Marketed, after Accumulated Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other intangible assets, net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Intangible Assets, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_DraftsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Drafts payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_DraftsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Draft Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_PayablesToBrokerDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payables to broker-dealers and clearing organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_PayablesToBrokerDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Payables to broker-dealers and clearing organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_PayablesToBrokerDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Payable to Other Broker-Dealer and Clearing Organization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and accrued liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounts Payable and Accrued Liabilities, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecuritySoldNotYetPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities sold, not yet purchased, at fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityOwnedAndSoldNotYetPurchasedFairValueSecuritySoldNotYetPurchased_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Owned and Sold, Not yet Purchased Fair Value, Security Sold, Not yet Purchased</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_BorrowingsUnderCreditAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Borrowings Under Credit Agreement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_BorrowingsUnderCreditAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Borrowings Under Credit Agreement Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Software, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IntangibleAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeasesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Leases [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherDeferredCostsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Contract Incentive [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Incorporation, State or Country Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line One</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine2_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Address Line Two</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, City or Town</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, State or Province</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Address, Postal Zip Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label">City Area Code</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Local Phone Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amendment Flag</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Period End Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">ASSETS</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">LIABILITIES AND STOCKHOLDERS&#8217; EQUITY</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Acquisition of BMLG assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Businesses, Net of Cash Acquired</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Non-cash investing and financing activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncash Investing and Financing Items [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TransactionWithMediaPlatform_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction with media platform</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TransactionWithMediaPlatform_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Transaction with Media Platform</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TransactionWithMediaPlatform_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity impact of the value transaction with media platform.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdvertisingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Advertising expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdvertisingExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Advertising Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Public float</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Proceeds from Issuance Initial Public Offering</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Revenues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PWBrokersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">PW brokers [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_KakaopayAndAffiliatesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Kakaopay and Affiliates [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Interest expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Operating and Nonoperating, Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ClassOfStockDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Class of Stock [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TerminationFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Termination fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TerminationFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Termination Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TerminationFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of termination fees.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_KakaopayMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Kakaopay [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_KakaopayMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Kakaopay Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_KakaopayMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Kakaopay [Member].</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related and Nonrelated Parties [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GloriaEGebbiaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gloria E. Gebbia [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GloriaEGebbiaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gloria EGebbia Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GloriaEGebbiaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Gloria E. Gebbia [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GebbiaSullivanCountyLandTrustMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gebbia Sullivan County Land Trust [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GebbiaSullivanCountyLandTrustMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gebbia Sullivan County Land Trust Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GebbiaSullivanCountyLandTrustMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Gebbia Sullivan County Land Trust [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Purchase shares of common stock (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Sale of Stock, Number of Shares Issued in Transaction</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantExercisePriceIncrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Exercise price, per share (in Dollars per share)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WarrantExercisePriceIncrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Warrant, Exercise Price, Increase</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Office rent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Average annual rent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Rent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Treasury stock, at cost; 1,000,000 shares held as of both June 30, 2026 and December 31, 2025</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Common, Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional paid-in capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid in Capital, Common Stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retained earnings</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings (Accumulated Deficit)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Stockholders&#8217; equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Including Portion Attributable to Noncontrolling Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Balance (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Balance (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares, Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract termination liability payment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Contract with Customer, Liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in operating activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Operating Activity, Including Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows From Investing Activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Purchase of office facilities and equipment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Property, Plant, and Equipment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForSoftware_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Purchase of software</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForSoftware_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments for Software</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Subsequent Events</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Subsequent Events [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments and Contingencies</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Current [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments, Cost [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investments, Cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Long-Term Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BrokersAndDealersDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capital Requirements</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BrokersAndDealersDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Instruments with Off-Balance Sheet Risk</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instruments Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Earnings Per Common Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Earnings Per Share [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commitments, Contingencies, and Other [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Treasury Stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockCommonMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Treasury Stock, Common [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Additional Paid-In Capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Additional Paid-in Capital [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Retained Earnings</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Retained Earnings [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ParentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Stockholders&#8217; Equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ParentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Parent [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Noncontrolling Interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NoncontrollingInterestMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">New Accounting Standards [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">New Accounting Standards</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Accounting Standards Update and Change in Accounting Principle [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Asset Acquisition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetAcquisitionTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Acquisition [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DueToAndFromBrokerDealersAndClearingOrganizationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivables from, Payables to, and Deposits with Broker-Dealers and Clearing Organizations [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DueToAndFromBrokerDealersAndClearingOrganizationsDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivables From, Payables To, and Deposits With Broker-Dealers and Clearing Organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DueToAndFromBrokerDealersAndClearingOrganizationsDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Due to and from Broker-Dealers and Clearing Organizations Disclosure [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeasesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Leases</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeasesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Leases [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill and Other Intangible Assets, Net [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill and Other Intangible Assets, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset and Goodwill [Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfEarlyTerminationFeeUponOccurrencePursuantAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Early Termination Fee Upon Occurrence Pursuant Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesRestrictedStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Dilutive effect of unvested shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesRestrictedStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares, Restricted Stock</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AwardDateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Award Date [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PriorToOctober22026Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prior to October 2, 2026 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PriorToOctober22026Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prior To October22026 Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PriorToOctober22027Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prior to October 2, 2027 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PriorToOctober22027Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prior To October22027 Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PriorToOctober22028Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prior to October 2, 2028 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PriorToOctober22028Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prior To October22028 Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PriorToOctober22029Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prior to October 2, 2029 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PriorToOctober22029Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prior To October22029 Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PriorToOctober22030Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prior to October 2, 2030 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PriorToOctober22030Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prior To October22030 Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherCommitmentsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Early Termination Fee Upon Occurrence Pursuant [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InterestMarketingAndDistributionFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest, marketing and distribution fees [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InterestMarketingAndDistributionFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Marketing And Distribution Fees Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InvestmentBankingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Investment banking [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InvestmentBankingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Investment Banking [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InvestmentBankingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investment Banking Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MarketMakingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Market making [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MarketMakingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Market Making Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockBorrowStockLoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock borrow / stock loan [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockBorrowStockLoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Borrow Stock Loan Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AdvisoryFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Advisory fees [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AdvisoryFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Advisory Fees Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OtherIncomesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Other income [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OtherIncomesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other income [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OtherIncomesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Incomes Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockIssuedDuringPeriodValueTransactionWithMediaPlatform_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction with media platform</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockIssuedDuringPeriodValueTransactionWithMediaPlatform_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period Value Transaction With Media Platform</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockIssuedDuringPeriodValueTransactionWithMediaPlatform_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Equity impact of the value transaction with media platform.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockIssuedDuringPeriodSharesTransactionShareWithMediaPlatform_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Transaction with media platform (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockIssuedDuringPeriodSharesTransactionShareWithMediaPlatform_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period Shares Transaction Share With Media Platform</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockIssuedDuringPeriodSharesTransactionShareWithMediaPlatform_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the shares value of transaction with media platform.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingExpenseInformationUsedByCodmDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Description of CODM</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingExpenseInformationUsedByCodmDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, Expense Information Used by CODM, Description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReinsurancePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Health claim reinsurance amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReinsurancePayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Reinsurance Payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_HealthClaimReinsuranceLimit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Health claim reinsurance limit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_HealthClaimReinsuranceLimit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Health Claim Reinsurance Limit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_HealthClaimReinsuranceLimit_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the value of health claim reinsurance limit.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidAdvertising_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid advertising</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidAdvertising_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Advertising</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalRequiredForCapitalAdequacy_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Minimum total regulatory capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalRequiredForCapitalAdequacy_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ManagementAndServiceFeesRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Origination fee</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ManagementAndServiceFeesRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Management and Service Fees, Rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_FederalFundsPurchasedAverageRatePaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Federal funds target range</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_FederalFundsPurchasedAverageRatePaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Federal Funds Purchased, Average Rate Paid</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtInterestRateIncrease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Term SOFR percentage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtInterestRateIncrease_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Debt, Interest Rate Increase</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateDuringPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Borrowings interest rate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentInterestRateDuringPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Interest Rate During Period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityCommitmentFeeAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fees amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityCommitmentFeeAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit Facility, Commitment Fee Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpenseDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expense, Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Line of credit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCredit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Line of Credit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InformationTechnologyAndDataProcessing_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Data processing</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InformationTechnologyAndDataProcessing_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Information Technology and Data Processing</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other general and administrative</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other General and Administrative Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TechnologyAndCommunications_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Technology and communications</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TechnologyAndCommunications_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Technology And Communications</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TechnologyAndCommunications_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of expense in the period for communications and data processing expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FloorBrokerageExchangeAndClearanceFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Clearing fees, including execution costs</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FloorBrokerageExchangeAndClearanceFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Floor Brokerage, Exchange and Clearance Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrincipalTransactionsRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Principal transactions and proprietary trading</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrincipalTransactionsRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Principal Transactions Revenue, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueFromMarginInterestMarketingAndDistributionFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest, marketing and distribution fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueFromMarginInterestMarketingAndDistributionFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue From Margin Interest Marketing And Distribution Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueFromMarginInterestMarketingAndDistributionFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Revenue from margin interest, marketing and distribution fees.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueFromCommissionsAndFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commissions and fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueFromCommissionsAndFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue From Commissions And Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueFromCommissionsAndFees_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Revenue from commissions and fees.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenues [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Statement [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Line of Credit [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting [Table]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Prepaid expenses and other assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Prepaid Expense and Other Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_SettlementExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Settlement expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_SettlementExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of settlement expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementScenarioAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scenario [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioUnspecifiedDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Scenario [Domain]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfOtherSegmentItemsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Other Segment Items [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesHeldToMaturityPastDueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of U.S. Government Securities with the Market Values and Maturity Dates</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtSecuritiesHeldToMaturityPastDueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Securities, Held-to-Maturity, Past Due [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Financial Assets and Liabilities not Measured at Fair Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueDisclosureOfAssetAndLiabilityNotMeasuredAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Property, Office Facilities, and Equipment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Software</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ContractualObligationFiscalYearMaturityScheduleTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Future Remaining Annual Minimum Principal Payments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ContractualObligationFiscalYearMaturityScheduleTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contractual Obligation, Fiscal Year Maturity [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRecognitionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue Recognition [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfCompanysRecognitionOfRevenueFromContractsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Recognition of Revenue from Contracts with Customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfCompanysRecognitionOfRevenueFromContractsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Companys Recognition Of Revenue From Contracts Table Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfCompanysRecognitionOfRevenueFromContractsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of the company&#8217;s recognition of revenue from contracts.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDueToFromBrokerDealersAndClearingOrganizationsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Amounts Receivable from, Payables to, and Deposits with Broker-Dealers and Clearing Organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDueToFromBrokerDealersAndClearingOrganizationsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Due to (from) Broker-Dealer and Clearing Organization [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Financial Assets and Liabilities Measured at Fair Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Future Amortization of Software Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfPurchasePriceTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Purchase Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfPurchasePriceTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Purchase Price Table Text Block</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfPurchasePriceTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Tabular disclosure of purchase price.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeAssetsAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Securities Borrowing and Lending Activity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDerivativeAssetsAtFairValueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Derivative Assets at Fair Value [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Basic and Diluted Earnings Per Common Share</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Plan Awards Granted and the Related Fair Values</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesNetCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Amounts Receivable from, Payables to, and Deposits with Broker-Dealers and Clearing Organizations [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivables from and deposits with broker-dealers and clearing organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivables [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesFromClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">DTCC / OCC / NSCC</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DueFromGoldmanSachs_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Due from Goldman Sachs.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DueFromNFS_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">National Financial Services, LLC (&#8220;NFS&#8221;)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DueFromNFS_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Due From NFS</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DueFromNFS_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount receivable from NFS.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_UnderwritingFeesReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Underwriting fees receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_UnderwritingFeesReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Underwriting Fees Receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_UnderwritingFeesReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of underwriting fees receivable.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DueFromFMR_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">FMR</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DueFromFMR_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Due From FMR</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DueFromFMR_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount receivable from FMR.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesFailedToDeliver_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities fail-to-deliver</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesFailedToDeliver_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Failed-to-Deliver</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DueFromGlobalShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Globalshares</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DueFromGlobalShares_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the amount of due from global shares.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherReceivablesFromBrokerDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherReceivablesFromBrokerDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Receivable from Broker-Dealer and Clearing Organization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfFinancialAssetsAndLiabilitiesMeasuredAtFairValueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Financial Assets And Liabilities Measured At Fair Value [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FairValueMeasurementsScheduleOfFinancialAssetsAndLiabilitiesMeasuredAtFairValueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CorporateBondSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Corporate bonds [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CorporateBondSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Corporate bonds [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CorporateBondSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Corporate Bond Securities [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PayablesToBrokerDealersAndClearingOrganizationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payables to broker-dealers and clearing organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PayablesToBrokerDealersAndClearingOrganizationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Payable to Other Broker-Dealer and Clearing Organization [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DueToSecuritiesFailToReceive_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities fail-to-receive</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DueToSecuritiesFailToReceive_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount payable to securities fail to receive.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payables to broker-dealers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommissionsPayableToBrokerDealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commission Payable to Broker-Dealer and Clearing Organization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Asset Class [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USGovernmentAgenciesDebtSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">U.S. Government Securities [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_USGovernmentAgenciesDebtSecuritiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">US Government Agencies Debt Securities [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TotalReceivablesFromAndDepositsWithBrokerdealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Receivables from and deposits with broker-dealers and clearing organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TotalReceivablesFromAndDepositsWithBrokerdealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Total Receivables From And Deposits With Brokerdealers And Clearing Organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TotalReceivablesFromAndDepositsWithBrokerdealersAndClearingOrganizations_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Total Receivables from and deposits with broker-dealers and clearing organizations.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueByLiabilityClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liability Class [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Fair Value by Liability Class [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Deposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Initial deposit</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_CA_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CA [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="stpr_CA_lbl" xlink:role="http://www.xbrl.org/2003/role/label">CALIFORNIA</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AreaOfLand_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Area of land</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AreaOfLand_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Area of Land</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PayableToBrokerDealersandClearingOrganizationsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payables to broker-dealers and clearing organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PayableToBrokerDealersandClearingOrganizationsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payable To Broker Dealersand Clearing Organizations Fair Value Disclosure</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PayableToBrokerDealersandClearingOrganizationsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payables to broker-dealers and clearing organizations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Fair Value</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfPropertyOfficeFacilitiesAndEquipmentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Property, Office Facilities, and Equipment [Abstract]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less accumulated depreciation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfSoftwareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Software Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RoboadvisorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Software [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RoboadvisorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Roboadvisor Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Geographical [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, Class [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Financial Assets and Liabilities not Measured at Fair Value [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalents, Fair Value Disclosure</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash &#8211; segregated for regulatory purposes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Segregated For Regulatory Purposes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashSegregatedForRegulatoryPurposes_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash segregated for regulatory purposes.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowedFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities borrowed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesBorrowedFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Borrowed, Fair Value Disclosure</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesFromCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Receivables from customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReceivablesFromCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Receivable from Customer in Brokerage</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities loaned</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PayabletoCustomersFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payables to customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PayabletoCustomersFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payableto Customers Fair Value Disclosure</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PayabletoCustomersFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payables to customers.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PayablesToNonCustomersFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payables to non-customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PayablesToNonCustomersFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payables To Non Customers Fair Value Disclosure</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PayablesToNonCustomersFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Payables to non-customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AmountOfDraftPayables_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Drafts payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AmountOfDraftPayables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Amount Of Draft Payables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AmountOfDraftPayables_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Drafts payable.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedComputerSoftwareGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Software</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedComputerSoftwareGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capitalized Cost, Software to be Sold, Leased, or Marketed, before Accumulated Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedComputerSoftwareAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Less accumulated amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedComputerSoftwareAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capitalized Cost, Software to be Sold, Leased, or Marketed, Accumulated Amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfFutureAmortizationOfSoftwareAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Future Amortization of Software Assets [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average discount rate &#8211; operating leases</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Weighted Average Discount Rate, Percent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating lease cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Short-term lease cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Short-Term Lease, Cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Variable lease cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Variable Lease, Cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OccupancyNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Rent and occupancy</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OccupancyNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rent and occupancy</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OccupancyNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Occupancy, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowOperatingActivitiesLesseeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash paid for amounts included in the measurement of lease liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowOperatingActivitiesLesseeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Flow, Operating Activities, Lessee [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLeaseIncomeLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating cash flows from operating leases</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLeaseIncomeLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Lease Income, Lease Payments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total depreciation expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_SoftwareNetTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Software, Net [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedComputerSoftwareAmortization1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total amortization of software</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedComputerSoftwareAmortization1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capitalized Cost, Software to be Sold, Leased, or Marketed, Amortization Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_LeasesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Leases [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Notes receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NotesReceivableFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Notes Receivable, Fair Value Disclosure</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Remaining balance of lease payments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IntangibleAssetFiniteLivedEstimatedAmortizationExpenseYearFourAndAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2030 and after</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IntangibleAssetFiniteLivedEstimatedAmortizationExpenseYearFourAndAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset Finite Lived Estimated Amortization Expense, Year Four And After Year Four</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IntangibleAssetFiniteLivedEstimatedAmortizationExpenseYearFourAndAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of amortization expense for finite-lived intangible asset expected to be recognized after third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfOtherDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repayments of debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfOtherDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Other Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedComputerSoftwareAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total capitalized software development cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedComputerSoftwareAdditions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capitalized Cost, Software to be Sold, Leased, or Marketed, Addition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueRecognitionScheduleofCompanysRecognitionofRevenuefromContractsDetailsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Recognition of Revenue from Contracts with Customers [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueRecognitionScheduleofCompanysRecognitionofRevenuefromContractsDetailsLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue Recognition - Schedule of Company&#8217;s Recognition of Revenue from Contracts (Details) [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuePerformanceObligationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenues from Contracts with Customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenuePerformanceObligationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue, Performance Obligation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PrincipalTransactionsAndProprietaryTradingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Principal transactions and proprietary trading</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PrincipalTransactionsAndProprietaryTradingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Principal Transactions And Proprietary Trading Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Amortization expense for intangible asset</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset, Finite-Lived, Amortization Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOfLeasehold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Impairment charge</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ImpairmentOfLeasehold_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Impairment of Leasehold</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InvestmentsCostTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Investments, Cost [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfCompanySRecognitionOfRevenueFromContractsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Recognition of Revenue from Contracts with Customers [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueRecognitionScheduleOfRecognitionOfRevenueFromContractsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Schedule of Recognition of Revenue from Contracts with Customers [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueRecognitionScheduleOfRecognitionOfRevenueFromContractsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue Recognition - Schedule of Recognition of Revenue from Contracts [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductsAndServicesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Product and Service [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RisklessPrincipalTransactionsWithCustomersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Riskless principal transactions with customers [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RisklessPrincipalTransactionsWithCustomersMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Riskless Principal Transactions With Customers Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PaymentForOrderFlowMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payment for order flow</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PaymentForOrderFlowMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payment For Order Flow Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MusicAndArtistServicesRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Music and artist services revenue [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MusicAndArtistServicesRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Music And Artist Services Revenue Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NILRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">NIL revenue [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NILRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">NILRevenue Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InterestIncomesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest income [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InterestIncomesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Incomes Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockRebateRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stock rebate revenue [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockRebateRevenueMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Rebate Revenue Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueOutsideTheScopeOfTopic606Abstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue Outside the Scope of Topic 606</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueOutsideTheScopeOfTopic606Abstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue Outside The Scope Of Topic606 Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Revenues from contracts with customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue from Contract with Customer, Including Assessed Tax</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CommissionsAndFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commissions and fees [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CommissionsAndFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Commissions And Fees Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueOutsideTheScopeOfTopicSixZeroSixMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue Outside the Scope of Topic 606 [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RevenueOutsideTheScopeOfTopicSixZeroSixMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Revenue Outside The Scope Of Topic Six Zero Six Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Instrument [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OwnershipAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ownership [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OwnershipDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Ownership [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FusionIQIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">FusionIQ, Inc [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GMAcquisitionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">GM Acquisition [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GMAcquisitionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">GM acquisition [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GoodwillAndOtherIntangibleAssetsNetTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill and Other Intangible Assets, Net [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RISEFinancialServicesLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">RISE Financial Services, LLC [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RISEFinancialServicesLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">RISEFinancial Services LLCMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GebbiaMediaLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Gebbia Media, LLC [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GebbiaMediaLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gebbia Media LLCMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCovenantDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Covenants description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCovenantDescription_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Debt Instrument, Covenant Description</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DeferredContractIncentiveTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Contract Incentive [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredRevenueArrangementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Contract Incentive [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessDevelopment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business development credit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessDevelopment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Development</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeTermOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Development credit, term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DerivativeTermOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Derivative, Contract Term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ContractTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ContractTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract Term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ContractTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Term of contract expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ContraExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contra expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ContraExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contra Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ContraExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Contra expense during the period.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DeferredContractIncentive_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred contract incentive</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DeferredContractIncentive_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Contract Incentive</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DeferredContractIncentive_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Deferred contract incentive.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RegulatoryCapitalRequirementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Requirements [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CapitalRequirementsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Requirements [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MSCOMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">MSCO [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MSCOMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">MSCOMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MSCOMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">MSCO [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CFTCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">CFTC [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CFTCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">CFTCMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RiseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">RISE [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RiseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Rise Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SecurityOwnedAndSoldNotYetPurchasedAtFairValueLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Capital Requirements [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_NetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_NetCapital_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Net Capital</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NetCapitalRequirementForThePercentageOfAggregateDebitItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Net capital requirement for the percentage of aggregate debit items</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NetCapitalRequirementForThePercentageOfAggregateDebitItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Net Capital Requirement For The Percentage Of Aggregate Debit Items</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NetCapitalRequirementForThePercentageOfAggregateDebitItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Percentage of net capital requirement for the percentage of aggregate debit items.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIntangibleAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other Intangible Assets [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIntangibleAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Intangible Assets [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill and Other Intangible Assets, Net [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Goodwill carrying amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillImpairmentLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill impairment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GoodwillImpairmentLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill, Impairment Loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value of intangible assets acquired</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Collaborative Arrangement and Arrangement Other than Collaborative [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ClearingAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Clearing Agreement [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ClearingAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Clearing Agreement Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_BusinessDevelopmentCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Business Development Credit [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_BusinessDevelopmentCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Business Development Credit Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NationalFinancialServicesLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">National Financial Services LLC [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NationalFinancialServicesLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">National Financial Services LLCMember</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NationalFinancialServicesLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">National Financial Services LLC [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Revenue recognition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Liability, Revenue Recognized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Taxes [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PreTaxBookIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Pre-tax book income loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PreTaxBookIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Pre Tax Book Income Loss</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PreTaxBookIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of pre-tax book income loss.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ContractTerminationFeesRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract termination fees recognized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ContractTerminationFeesRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract Termination Fees Recognized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ContractTerminationFeesRecognized_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of contract termination fees recognized.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2026</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">2026</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, Remainder of Fiscal Year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_LongTermDebtMaturityAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Thereafter</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_LongTermDebtMaturityAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Maturity, After Year Four</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_LongTermDebtMaturityAfterYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after four fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ContractExtendedTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract extended term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ContractExtendedTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract Extended Term</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ContractExtendedTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Contract extended term.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IntangibleAssetImpairmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Intangible asset impairment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IntangibleAssetImpairmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset Impairment Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GoodwillImpairmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Goodwill impairment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_GoodwillImpairmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Goodwill Impairment Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DepreciationAndAmortizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation and amortization [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DepreciationAndAmortizationMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation And Amortization Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ProfessionalFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Professional fees [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ProfessionalFeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Professional Fees Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RentAndOccupancyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Rent and occupancy [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RentAndOccupancyMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Rent And Occupancy Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_EmployeeCompensationAndBenefitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee compensation and benefits [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_EmployeeCompensationAndBenefitsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Compensation And Benefits Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ClearingFeesIncludingExecutionCostsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Clearing fees, including execution costs [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ClearingFeesIncludingExecutionCostsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Clearing Fees Including Execution Costs Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TechnologyAndCommunicationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Technology and communications [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_TechnologyAndCommunicationsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Technology And Communications Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OtherGeneralAndAdministrativeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other general and administrative [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OtherGeneralAndAdministrativeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other General And Administrative Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DataProcessingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Data processing [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DataProcessingMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Data Processing Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MusicProductionManufacturingAndDistributionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Music production, manufacturing and distribution [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MusicProductionManufacturingAndDistributionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Music Production Manufacturing And Distribution Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementBusinessSegmentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segments [Axis]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segments [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FinancialServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Financial Services [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FinancialServicesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Financial Services Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MediaSportsAndEntertainmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Media, Sports and Entertainment [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MediaSportsAndEntertainmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Media Sports And Entertainment Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedContributionPlanDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule of Plan Awards Granted and the Related Fair Values [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Shares, Nonvested beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Shares, Nonvested ending balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Weighted- Average Grant Date Fair Value, Nonvested beginning balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Weighted- Average Grant Date Fair Value, Nonvested ending balance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Option, Nonvested, Weighted Average Exercise Price</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares, Granted</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted- Average Grant Date Fair Value, Granted</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Shares, Vested</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted- Average Grant Date Fair Value, Vested</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Weighted Average Grant Date Fair Value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Weighted average shares outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Basic [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Diluted (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Weighted Average Number of Shares Outstanding, Diluted</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net change in cash and cash equivalents, and cash segregated for regulatory purposes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel">Cash and cash equivalents, and cash segregated for regulatory purposes - beginning of period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents, and cash segregated for regulatory purposes - end of period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash and cash equivalents, and cash segregated for regulatory purposes - end of period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulations_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Securities Segregated under Federal and Other Regulations</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Reconciliation of cash, cash equivalents, and cash segregated for regulatory purposes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndSecuritiesSegregatedUnderFederalAndOtherRegulationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Securities Segregated under Federal and Other Regulations [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel">Cash and cash equivalents - end of period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash and cash equivalents</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash and Cash Equivalent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashSegregatedForRegulatoryPurposesEndOfYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash segregated for regulatory purposes - end of period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashSegregatedForRegulatoryPurposesEndOfYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Segregated For Regulatory Purposes End Of Year</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CashSegregatedForRegulatoryPurposesEndOfYear_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Cash segregated for regulatory purposes - end of year.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Supplemental cash flow information</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Supplemental Cash Flow Information [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash paid during the period for income taxes</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Income Tax Paid, after Refund Received</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash paid during the period for interest</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Paid, Excluding Capitalized Interest, Operating Activity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfPlanAwardsGrantedAndTheRelatedFairValuesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Plan Awards Granted And The Related Fair Values Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Operating income (loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Operating income (loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Income (Loss)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingExpenses_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AdvertisingAndPromotionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Advertising and promotion [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AdvertisingAndPromotionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Advertising And Promotion Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InterestExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Interest expense [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_InterestExpensesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Interest Expenses Member</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Restricted Stock Awards [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Restricted Stock [Member]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OtherDeferredRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Other deferred revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OtherDeferredRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Deferred Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_OtherDeferredRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represent the amount of other deferred revenue.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Contract termination liability</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Contract with Customer, Liability, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current portion of deferred contract incentive</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Current Maturities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current portion of lease liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CurrentPortionOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current portion of debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CurrentPortionOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Portion Of Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CurrentPortionOfDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Represents the amount of the current portion of debt.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Current liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DeferredContractIncentiveLessCurrentPortions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred contract incentive, less current portion</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DeferredContractIncentiveLessCurrentPortions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Contract Incentive Less Current Portions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_DeferredContractIncentiveLessCurrentPortions_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">The amount of deferred contract incentive less current portion.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Lease liabilities, less current portion</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Operating Lease, Liability, Noncurrent</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Debt, less current portion</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Long-Term Debt, Excluding Current Maturities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share-based compensation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Granted, Value, Share-Based Payment Arrangement, after Forfeiture</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Share-based compensation (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Transaction with FMR</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Value, Other</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">RISE cash distribution</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Adjustments to reconcile net income (loss) to net cash used in operating activities:</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred tax expense (benefit)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Income Tax Expense (Benefit)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Depreciation and amortization</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Depreciation, Depletion and Amortization, Nonproduction</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IntangibleAssetImpairment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Intangible asset impairment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IntangibleAssetImpairment_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Intangible Asset Impairment</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_IntangibleAssetImpairment_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of intangible asset impairment.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfOtherAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Loss on disposal of assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnSaleOfOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Gain (Loss) on Disposition of Other Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FMRClearingAgreementExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">FMR clearing arrangement</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FMRClearingAgreementExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label">FMRClearing Agreement Expense</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_FMRClearingAgreementExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of FMR clearing agreement expense.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInSecuritiesBorrowed_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Securities borrowed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInSecuritiesBorrowed_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Securities Borrowed</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInTradingSecurities_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Securities owned, at fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInTradingSecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Debt Securities, Trading, and Equity Securities, FV-NI</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInNotesReceivables_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Notes receivable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInNotesReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Notes Receivables</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Prepaid expenses and other assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPayablesToCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payables to customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPayablesToCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Payables to Customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireInvestments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Cash paid in investments at cost</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireInvestments_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments to Acquire Investments</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in investing activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Investing Activity, Including Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash Flows From Financing Activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfCapitalDistribution_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">RISE cash distribution</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfCapitalDistribution_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payments of Capital Distribution</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel">Repayments of long-term debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Repayments of Long-Term Debt</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Net cash used in financing activities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash Provided by (Used in) Financing Activity, Including Discontinued Operation</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfessionalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Professional fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfessionalFees_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Professional Fees</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_ScheduleOfOtherSegmentItemsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Schedule Of Other Segment Items Abstract</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Trading Symbol</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Security Exchange Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Registrant Name</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Central Index Key</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Tax Identification Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Current Fiscal Year End Date</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Current Reporting Status</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Filer Category</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity File Number</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Shell Company</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Emerging Growth Company</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Small Business</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Deferred tax assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Income Tax Assets, Net</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualCommonStockReservedForFutureIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Employee benefit plans shares reserved (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualCommonStockReservedForFutureIssuance_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Compensation Arrangement with Individual, Common Stock Reserved for Future Issuance</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Unrecognized compensation cost related to nonvested shares</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Expected to be recognized over a weighted average period</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Common Stock, Shares Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Title of 12(b) Security</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cover [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Type</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Quarterly Report</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Transition Report</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Shares issued (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Stock Issued During Period, Shares, New Issues</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAmountsOfTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel">Relation agreement amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionAmountsOfTransaction_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Transaction, Amounts of Transaction</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EscrowDeposit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Escrow deposit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EscrowDeposit_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Escrow Deposit</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsCash_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsCash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Dividends, Cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Accounts payable and accrued liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Accounts Payable and Accrued Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInSecuritiesLoanedTransactions_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Securities loaned</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInSecuritiesLoanedTransactions_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Increase (Decrease) in Securities Loaned Transactions</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Entity Interactive Data Current</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Year Focus</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Document Fiscal Period Focus</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AwardDateDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Award Date [Domain]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Statement of Financial Position [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares outstanding (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares, Outstanding</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Current liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities, Current [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_PayablesToCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payables to customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_PayablesToCustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Broker-Dealer, Payable to Customer</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PayablesToNoncustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Payables to non-customers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PayablesToNoncustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Payables To Noncustomers</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PayablesToNoncustomers_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Amount of payables to non-customers.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Stockholders&#8217; Equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Equity, Attributable to Parent [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Capitalize stock-based compensation expense</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Disclosures [Abstract]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_RelatedPartyDisclosuresDetailsTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Disclosures (Details) [Table]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Related Party Disclosures [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CompensationAggregateAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Compensation aggregate</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CompensationAggregateAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Compensation Aggregate Amount</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_CompensationAggregateAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Compensation aggregate.</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PurchasedRemainingInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Repurchase of interests</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_PurchasedRemainingInterestRate_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Purchased Remaining Interest Rate</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_NewsMaxAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label">News Max Agreement Member</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Commitments, Contingencies, and Other</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting [Text Block]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MinimumDebtServiceCoverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Minimum Debt Service Coverage Ratio</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MinimumDebtServiceCoverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Minimum debt service coverage ratio.</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Total cost payable</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LoansPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Loans Payable</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SegmentReportingCodmIndividualTitleAndPositionOrGroupOrCommitteeNameExtensibleEnumeration_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Employee Benefit Plans [Line Items]</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanContributionsByEmployer_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Incurred expenses</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanContributionsByEmployer_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Defined Benefit Plan, Plan Assets, Contributions by Employer</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Provided shares (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Deferred Compensation Arrangement with Individual, Shares Issued</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel">Total Liabilities and Stockholders&#8217; Equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Liabilities and Equity</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Cash_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Cash_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Cash</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Fair value</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Assets, Fair Value Disclosure</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares authorized (in Shares)</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Common Stock, Shares Authorized</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel">Common stock, shares issued (in Shares)</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_MarketMakingIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Market making income.</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_StockLoanIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Stock borrow / stock loan income.</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AdvisoryFeesRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Advisory Fees Revenue</link:label>
    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="sieb_AdvisoryFeesRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation">Advisory fees revenue.</link:label>
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    <link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label">Other Income</link:label>
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