XML 28 R29.htm IDEA: XBRL DOCUMENT v2.4.1.9
Securities (Amortized Cost And Fair Value Of Securities By Contractual Maturity Of Available-For-Sale Securities) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]    
Due in one year or less, Amortized Cost     
Due after one year through five years, Amortized Cost     
Due after five years through ten years, Amortized Cost 2,301us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost  
Due after ten years, Amortized Cost 29,844us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost  
Total bonds and obligations, Amortized Cost 32,145us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis  
Due in one year or less, Fair Value     
Due after one year through five years, Fair Value     
Due after five years through ten years, Fair Value 2,333us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue  
Due after ten years, Fair Value 29,868us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue  
Total bonds and obligations, Fair Value 32,201us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue  
Amortized Cost 84,144us-gaap_AvailableForSaleSecuritiesAmortizedCost 77,695us-gaap_AvailableForSaleSecuritiesAmortizedCost
Fair Value 84,573us-gaap_AvailableForSaleSecurities 77,976us-gaap_AvailableForSaleSecurities
U.S. Government Agencies [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 11,428us-gaap_AvailableForSaleSecuritiesAmortizedCost
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
7,873us-gaap_AvailableForSaleSecuritiesAmortizedCost
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Fair Value 11,406us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
7,858us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
U.S. Government-Sponsored Enterprises [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 40,563us-gaap_AvailableForSaleSecuritiesAmortizedCost
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
43,382us-gaap_AvailableForSaleSecuritiesAmortizedCost
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Fair Value 40,955us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
43,724us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Equity Securities-Financial Services Industry And Other [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 8us-gaap_AvailableForSaleSecuritiesAmortizedCost
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= sbbx_EquitySecuritiesFinancialServicesIndustryAndOtherMember
8us-gaap_AvailableForSaleSecuritiesAmortizedCost
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= sbbx_EquitySecuritiesFinancialServicesIndustryAndOtherMember
Fair Value $ 11us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= sbbx_EquitySecuritiesFinancialServicesIndustryAndOtherMember
$ 10us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= sbbx_EquitySecuritiesFinancialServicesIndustryAndOtherMember