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<link:definition>082 - Disclosure - Federal Home Loan Bank Advances and Other Borrowings (Details)</link:definition>
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<link:definition>093 - Disclosure - Earnings Per Common Share (Details)</link:definition>
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<link:definition>101 - Disclosure - Related Party Transactions (Details)</link:definition>
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<link:definition>103 - Disclosure - Financial Instruments With Off-Balance Sheet Risk (Details)</link:definition>
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<link:definition>105 - Disclosure - Stock-Based Compensation (Details)</link:definition>
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<link:definition>109 - Disclosure - Stock-Based Compensation (Details Textual)</link:definition>
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<link:definition>110 - Disclosure - Regulatory Matters (Details)</link:definition>
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<link:definition>114 - Disclosure - Selected Condensed Quarterly Financial Data (Unaudited) (Details)</link:definition>
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<import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd"/>
<import namespace="http://xbrl.sec.gov/dei/2014-01-31" schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd"/>
<import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd"/>
<import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd"/>
<import namespace="http://fasb.org/us-types/2017-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2017/elts/us-types-2017-01-31.xsd"/>
<element name="DocumentAndEntityInformationAbstract" id="sfst_DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="FederalHomeLoanBankAdvancesAndRepurchaseAgreements" id="sfst_FederalHomeLoanBankAdvancesAndRepurchaseAgreements" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" />
<element name="NonvestedRestrictedStockValue" id="sfst_NonvestedRestrictedStockValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="OtherRealEstateOwnedExpenses" id="sfst_OtherRealEstateOwnedExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="RedemptionOfPreferredStock" id="sfst_RedemptionOfPreferredStock" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" />
<element name="GainLossOnSaleOfOtherRealEstateOwned" id="sfst_GainLossOnSaleOfOtherRealEstateOwned" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" />
<element name="WriteDownOfOtherRealEstateOwned" id="sfst_WriteDownOfOtherRealEstateOwned" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" />
<element name="IncreaseDecreaseInCashRealizedInvestingActivitiesAbstract" id="sfst_IncreaseDecreaseInCashRealizedInvestingActivitiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="ProceedsFromMaturitiesCallsAndRepaymentsOfInvestmentSecuritiesAbstract" id="sfst_ProceedsFromMaturitiesCallsAndRepaymentsOfInvestmentSecuritiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="IncreaseDecreaseInCashRealizedFinancingActivitiesAbstract" id="sfst_IncreaseDecreaseInCashRealizedFinancingActivitiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="IncreaseDecreaseInFederalHomeLoanBankAdvancesAndOtherBorrowings" id="sfst_IncreaseDecreaseInFederalHomeLoanBankAdvancesAndOtherBorrowings" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="CashPaidAbstract" id="sfst_CashPaidAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="OtherRealEstateAcquiredInSettlementOfLoans" id="sfst_OtherRealEstateAcquiredInSettlementOfLoans" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" />
<element name="UnrealizedGainLossOnSecuritiesNetOfIncomeTaxes" id="sfst_UnrealizedGainLossOnSecuritiesNetOfIncomeTaxes" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" />
<element name="MortgageLoansHeldForSaleAbstract" id="sfst_MortgageLoansHeldForSaleAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="MortgageLoansHeldForSaleTextBlock" id="sfst_MortgageLoansHeldForSaleTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="TroubledDebtRestructuringsAbstract" id="sfst_TroubledDebtRestructuringsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="TroubledDebtRestructuringTextBlock" id="sfst_TroubledDebtRestructuringTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="DepositAbstract" id="sfst_DepositAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="FederalHomeLoanBankAdvancesAndOtherBorrowingsAbstract" id="sfst_FederalHomeLoanBankAdvancesAndOtherBorrowingsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="FederalHomeLoanBankAdvancesAndRepurchaseAgreementsTextBlock" id="sfst_FederalHomeLoanBankAdvancesAndRepurchaseAgreementsTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="JuniorSubordinatedDebenturesAbstract" id="sfst_JuniorSubordinatedDebenturesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="JuniorSubordinatedDebenturesTextBlock" id="sfst_JuniorSubordinatedDebenturesTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="UnusedLinesOfCreditAbstract" id="sfst_UnusedLinesOfCreditAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="UnusedLinesOfCreditTextBlock" id="sfst_UnusedLinesOfCreditTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="FinancialInstrumentsWithOffBalanceSheetRiskAbstract" id="sfst_FinancialInstrumentsWithOffBalanceSheetRiskAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="FinancialInstrumentsWithOffBalanceSheetRiskTextBlock" id="sfst_FinancialInstrumentsWithOffBalanceSheetRiskTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="EmployeeBenefitPlanAbstract" id="sfst_EmployeeBenefitPlanAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="DividendAbstract" id="sfst_DividendAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="DividendsDisclosureTextBlock" id="sfst_DividendsDisclosureTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="RegulatoryMattersAbstract" id="sfst_RegulatoryMattersAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="BusinessActivityPolicyTextBlock" id="sfst_BusinessActivityPolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="OtherInvestmentsPolicyTextBlock" id="sfst_OtherInvestmentsPolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="LoanChargeOffPolicyPolicyTextBlock" id="sfst_LoanChargeOffPolicyPolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="BankOwnedLifeInsurancePoliciesPolicyTextBlock" id="sfst_BankOwnedLifeInsurancePoliciesPolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="LoanReceivableByRateTypeTableTextBlock" id="sfst_LoanReceivableByRateTypeTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="SummaryOfAverageRecordedInvestmentInImpairedLoansAndAmountOfInterestIncomeTableTextBlock" id="sfst_SummaryOfAverageRecordedInvestmentInImpairedLoansAndAmountOfInterestIncomeTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="SummaryOfAllowanceForLoanLossesByCommercialAndConsumerPortfolioSegmentsTableTextBlock" id="sfst_SummaryOfAllowanceForLoanLossesByCommercialAndConsumerPortfolioSegmentsTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="ImpairmentMethodologyForCreditLossesOnFinancingReceivablesTableTextBlock" id="sfst_ImpairmentMethodologyForCreditLossesOnFinancingReceivablesTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="OutstandingLoansByRiskCategoryTableTextBlock" id="sfst_OutstandingLoansByRiskCategoryTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="ScheduleOfEstimatedUsefulLivesOfPropertyPlantAndEquipmentTableTextBlock" id="sfst_ScheduleOfEstimatedUsefulLivesOfPropertyPlantAndEquipmentTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="DetailOfDepositAccountsTableTextBlock" id="sfst_DetailOfDepositAccountsTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="ScheduledMaturitiesOfCertificatesOfDepositTableTextBlock" id="sfst_ScheduledMaturitiesOfCertificatesOfDepositTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="SummaryOfSignificantAccountingPoliciesAndActivitiesTextualAbstract" id="sfst_SummaryOfSignificantAccountingPoliciesAndActivitiesTextualAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="RealEstateLoanPercentageOfAggregateLoan" id="sfst_RealEstateLoanPercentageOfAggregateLoan" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="InvestmentInTrusts" id="sfst_InvestmentInTrusts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="IncomeTaxDescription" id="sfst_IncomeTaxDescription" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="SbaSecuritiesMember" id="sfst_SbaSecuritiesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="SecuritiesAvailableForSaleMajorCategoriesAbstract" id="sfst_SecuritiesAvailableForSaleMajorCategoriesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="NumberOfInvestmentsInContinuousUnrealizedLossPositionLessThanTwelveMonths" id="sfst_NumberOfInvestmentsInContinuousUnrealizedLossPositionLessThanTwelveMonths" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="NumberOfInvestmentsInContinuousUnrealizedLossPositionTwelveMonthsOrLonger" id="sfst_NumberOfInvestmentsInContinuousUnrealizedLossPositionTwelveMonthsOrLonger" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="NumberOfInvestmentsInContinuousUnrealizedLossPosition" id="sfst_NumberOfInvestmentsInContinuousUnrealizedLossPosition" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="InvestmentInTrustPreferredSubsidiaries" id="sfst_InvestmentInTrustPreferredSubsidiaries" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="InvestmentSecuritiesTextualAbstract" id="sfst_InvestmentSecuritiesTextualAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="InvestmentsWithFairMarketValueInContinuousUnrealizedLossPositionLessThanTwelveMonths" id="sfst_InvestmentsWithFairMarketValueInContinuousUnrealizedLossPositionLessThanTwelveMonths" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="InvestmentsWithFairMarketValueInContinuousUnrealizedLossPositionTwelveMonthsOrLonger" id="sfst_InvestmentsWithFairMarketValueInContinuousUnrealizedLossPositionTwelveMonthsOrLonger" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="SecuritiesPledgedToSecureClientDeposit" id="sfst_SecuritiesPledgedToSecureClientDeposit" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="MortgageLoansHeldForSaleTextualAbstract" id="sfst_MortgageLoansHeldForSaleTextualAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="OwnerOccupiedReMember" id="sfst_OwnerOccupiedReMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="NonOwnerOccupiedReMember" id="sfst_NonOwnerOccupiedReMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="BusinessLoanMember" id="sfst_BusinessLoanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="OtherConsumerMember" id="sfst_OtherConsumerMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="LoansAndLeasesReceivableNetOfDeferredIncomePercentage" id="sfst_LoansAndLeasesReceivableNetOfDeferredIncomePercentage" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="FinancingReceivableRecordedInvestmentPastDueOne" id="sfst_FinancingReceivableRecordedInvestmentPastDueOne" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="FinancingReceivableRecordedInvestmentPastDueTwo" id="sfst_FinancingReceivableRecordedInvestmentPastDueTwo" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="OutstandingLoansByRiskCategoryAbstract" id="sfst_OutstandingLoansByRiskCategoryAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="LossMember" id="sfst_LossMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="SummeryOfNonperformingAssetsAbstract" id="sfst_SummeryOfNonperformingAssetsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="NonaccruingTroubledDebtRestructurings" id="sfst_NonaccruingTroubledDebtRestructurings" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="NonaccrualLoansIncludingNonaccruingTroubledDebtRestructurings" id="sfst_NonaccrualLoansIncludingNonaccruingTroubledDebtRestructurings" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="NonaccrualLoansAndOtherRealEstate" id="sfst_NonaccrualLoansAndOtherRealEstate" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="NonperformingAssetsInRelativePercentageAbstract" id="sfst_NonperformingAssetsInRelativePercentageAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="NonperformingAssetsAsPercentageOfAssets" id="sfst_NonperformingAssetsAsPercentageOfAssets" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="NonperformingAssetsAsPercentageOfGrossLoans" id="sfst_NonperformingAssetsAsPercentageOfGrossLoans" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="LoansOverNinetyDaysPastDue" id="sfst_LoansOverNinetyDaysPastDue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="AccruingTroubledDebtRestructurings" id="sfst_AccruingTroubledDebtRestructurings" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="SummaryOfKeyInformationForImpairedLoansAbstract" id="sfst_SummaryOfKeyInformationForImpairedLoansAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="UnallocatedMember" id="sfst_UnallocatedMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="AllowanceForLoanAndLeaseLossesWriteOffsNetOfRecoveries" id="sfst_AllowanceForLoanAndLeaseLossesWriteOffsNetOfRecoveries" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="LoanAndAllowanceForLoanLossesTextualAbstract" id="sfst_LoanAndAllowanceForLoanLossesTextualAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="PartOfLoansOfThirtyDaysOrMorePastDueAsPercentageOfAggregateLoanPortfolio" id="sfst_PartOfLoansOfThirtyDaysOrMorePastDueAsPercentageOfAggregateLoanPortfolio" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="ConsumerLoansPercentageOfAggregateRealEstateLoan" id="sfst_ConsumerLoansPercentageOfAggregateRealEstateLoan" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="MortgageLoanPledgedAsCollateralForAdvancesFromFhlb" id="sfst_MortgageLoanPledgedAsCollateralForAdvancesFromFhlb" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="ForegoneInterestIncomeOnNonAccrualLoans" id="sfst_ForegoneInterestIncomeOnNonAccrualLoans" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item" />
<element name="DescriptionLoanExceedSupervisionLoanToValueLimits" id="sfst_DescriptionLoanExceedSupervisionLoanToValueLimits" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="DescriptionOfLoansWithLoanToValueRatio" id="sfst_DescriptionOfLoansWithLoanToValueRatio" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="CommercialLoansPercentageOfAggregateRealEstateLoan" id="sfst_CommercialLoansPercentageOfAggregateRealEstateLoan" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="SummaryOfConcessionAtTimeOfModificationAndRecordedInvestmentAbstract" id="sfst_SummaryOfConcessionAtTimeOfModificationAndRecordedInvestmentAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="RenewalsDeemedConcession" id="sfst_RenewalsDeemedConcession" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="ReducedOrDeferredPayments" id="sfst_ReducedOrDeferredPayments" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="ConvertedToInterestOnly" id="sfst_ConvertedToInterestOnly" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="MaturityDateExtensions" id="sfst_MaturityDateExtensions" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="TroubledDebtRestructuringsTextualAbstract" id="sfst_TroubledDebtRestructuringsTextualAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
<element name="AggregateNumberOfLoansClassifiedUnderTroubledDebtRestructurings" id="sfst_AggregateNumberOfLoansClassifiedUnderTroubledDebtRestructurings" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="AggregateSumOfLoansClassifiedAsTroubledDebtRestructurings" id="sfst_AggregateSumOfLoansClassifiedAsTroubledDebtRestructurings" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="AggregateNumberOfLoansAddedUnderTroubledDebtRestructurings" id="sfst_AggregateNumberOfLoansAddedUnderTroubledDebtRestructurings" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="AggregateSumOfLoansAddedAsTroubledDebtRestructurings" id="sfst_AggregateSumOfLoansAddedAsTroubledDebtRestructurings" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
<element name="AggregateNumberOfLoansRemovedUnderTroubledDebtRestructurings" id="sfst_AggregateNumberOfLoansRemovedUnderTroubledDebtRestructurings" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
<element name="RestoredNonaccrualLoans" id="sfst_RestoredNonaccrualLoans" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item" />
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