LOANS (Details Of Loans) (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Accounts Notes and Loans Receivable [Line Items] | ||||
Total Loans | $ 3,359,858us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome | $ 2,858,868us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome | ||
Less allowance for loan losses | (35,629)us-gaap_LoansAndLeasesReceivableAllowance | (30,663)us-gaap_LoansAndLeasesReceivableAllowance | (26,258)us-gaap_LoansAndLeasesReceivableAllowance | (22,030)us-gaap_LoansAndLeasesReceivableAllowance |
Net Loans | 3,324,229us-gaap_LoansAndLeasesReceivableNetReportedAmount | 2,828,205us-gaap_LoansAndLeasesReceivableNetReportedAmount | ||
Commercial Financial and Agricultural Financing Receivable [Member] | ||||
Accounts Notes and Loans Receivable [Line Items] | ||||
Total Loans |
1,495,092us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_CommercialFinancialAndAgriculturalFinancingReceivableMember |
1,278,649us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_CommercialFinancialAndAgriculturalFinancingReceivableMember |
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Less allowance for loan losses |
(16,079)us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_CommercialFinancialAndAgriculturalFinancingReceivableMember |
(13,576)us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_CommercialFinancialAndAgriculturalFinancingReceivableMember |
(11,061)us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_CommercialFinancialAndAgriculturalFinancingReceivableMember |
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Commercial Real Estate Construction Financing Receivable [Member] | ||||
Accounts Notes and Loans Receivable [Line Items] | ||||
Total Loans |
208,769us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateConstructionFinancingReceivableMember |
151,868us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateConstructionFinancingReceivableMember |
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Less allowance for loan losses |
(6,395)us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateConstructionFinancingReceivableMember |
(6,078)us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateConstructionFinancingReceivableMember |
(6,907)us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstateConstructionFinancingReceivableMember |
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Commercial Mortgage Loans Owner Occupied [Member] | ||||
Accounts Notes and Loans Receivable [Line Items] | ||||
Total Loans |
793,917us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_CommercialMortgageLoansOwnerOccupiedMember |
710,372us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_CommercialMortgageLoansOwnerOccupiedMember |
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One To Four Family Mortgage Loans [Member] | ||||
Accounts Notes and Loans Receivable [Line Items] | ||||
Total Loans |
333,455us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_OneToFourFamilyMortgageLoansMember |
278,621us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_OneToFourFamilyMortgageLoansMember |
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Other Real Estate Mortgage Loans [Member] | ||||
Accounts Notes and Loans Receivable [Line Items] | ||||
Total Loans |
471,363us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_OtherRealEstateMortgageLoansMember |
391,396us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_OtherRealEstateMortgageLoansMember |
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Residential Real Estate Mortgage Loans [Member] | ||||
Accounts Notes and Loans Receivable [Line Items] | ||||
Total Loans |
1,598,735us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_ResidentialRealEstateMortgageLoansMember |
1,380,389us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_ResidentialRealEstateMortgageLoansMember |
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Less allowance for loan losses |
(12,112)us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_ResidentialRealEstateMortgageLoansMember |
(10,065)us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_ResidentialRealEstateMortgageLoansMember |
(7,964)us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = sfbs_ResidentialRealEstateMortgageLoansMember |
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Consumer Portfolio Segment [Member] | ||||
Accounts Notes and Loans Receivable [Line Items] | ||||
Total Loans |
57,262us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember |
47,962us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember |
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Less allowance for loan losses |
$ (1,043)us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember |
$ (944)us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember |
$ (326)us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember |
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- Definition
Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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