2.4.0.8090308 - Disclosure - Loans and Allowance for Loan Losses, Troubled Debt Restructurings (Details)truefalsefalse1false USDfalsefalse$c20130401to20130630http://www.sec.gov/CIK0001083643duration2013-04-01T00:00:002013-06-30T00:00:00U010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170U009Standardhttp://fauquierbank.com/20130630Loanfbss0U008Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2false USDfalsefalse$c20130101to20130630http://www.sec.gov/CIK0001083643duration2013-01-01T00:00:002013-06-30T00:00:00U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170U009Standardhttp://fauquierbank.com/20130630Loanfbss0U008Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$3false USDfalsefalse$c20121231http://www.sec.gov/CIK0001083643instant2012-12-31T00:00:000001-01-01T00:00:00U008Standardhttp://www.xbrl.org/2003/instancepurexbrli0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4false USDfalsefalse$c20120630http://www.sec.gov/CIK0001083643instant2012-06-30T00:00:000001-01-01T00:00:00U008Standardhttp://www.xbrl.org/2003/instancepurexbrli0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$5false USDtruefalse$c20130401to20130630_FinancingReceivableTroubledDebtRestructuringAxis_CommercialPortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseCommercial and Industrial [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommercialPortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$6false USDtruefalse$c20120401to20120630_FinancingReceivableTroubledDebtRestructuringAxis_CommercialPortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2012-04-01T00:00:002012-06-30T00:00:00falsefalseCommercial and Industrial [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommercialPortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$7false USDtruefalse$c20130101to20130630_FinancingReceivableTroubledDebtRestructuringAxis_CommercialPortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseCommercial and Industrial [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommercialPortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$8false USDtruefalse$c20120101to20120630_FinancingReceivableTroubledDebtRestructuringAxis_CommercialPortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2012-01-01T00:00:002012-06-30T00:00:00falsefalseCommercial and Industrial [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommercialPortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$9false USDtruefalse$c20130401to20130630_FinancingReceivableTroubledDebtRestructuringAxis_CommercialRealEstatePortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseCommercial Real Estate [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommercialRealEstatePortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$10false USDtruefalse$c20120401to20120630_FinancingReceivableTroubledDebtRestructuringAxis_CommercialRealEstatePortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2012-04-01T00:00:002012-06-30T00:00:00falsefalseCommercial Real Estate [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommercialRealEstatePortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$11false USDtruefalse$c20130101to20130630_FinancingReceivableTroubledDebtRestructuringAxis_CommercialRealEstatePortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseCommercial Real Estate [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommercialRealEstatePortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$12false USDtruefalse$c20120101to20120630_FinancingReceivableTroubledDebtRestructuringAxis_CommercialRealEstatePortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2012-01-01T00:00:002012-06-30T00:00:00falsefalseCommercial Real Estate [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommercialRealEstatePortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$13false USDtruefalse$c20130401to20130630_FinancingReceivableTroubledDebtRestructuringAxis_ConstructionAndLandMemberhttp://www.sec.gov/CIK0001083643duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseConstruction and Land [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldifbss_ConstructionAndLandMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$14false USDtruefalse$c20120401to20120630_FinancingReceivableTroubledDebtRestructuringAxis_ConstructionAndLandMemberhttp://www.sec.gov/CIK0001083643duration2012-04-01T00:00:002012-06-30T00:00:00falsefalseConstruction and Land [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldifbss_ConstructionAndLandMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$15false USDtruefalse$c20130101to20130630_FinancingReceivableTroubledDebtRestructuringAxis_ConstructionAndLandMemberhttp://www.sec.gov/CIK0001083643duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseConstruction and Land [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldifbss_ConstructionAndLandMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$16false USDtruefalse$c20120101to20120630_FinancingReceivableTroubledDebtRestructuringAxis_ConstructionAndLandMemberhttp://www.sec.gov/CIK0001083643duration2012-01-01T00:00:002012-06-30T00:00:00falsefalseConstruction and Land [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldifbss_ConstructionAndLandMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$17false USDtruefalse$c20130401to20130630_FinancingReceivableTroubledDebtRestructuringAxis_ConsumerPortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseConsumer [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ConsumerPortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$18false USDtruefalse$c20120401to20120630_FinancingReceivableTroubledDebtRestructuringAxis_ConsumerPortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2012-04-01T00:00:002012-06-30T00:00:00falsefalseConsumer [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ConsumerPortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$19false USDtruefalse$c20130101to20130630_FinancingReceivableTroubledDebtRestructuringAxis_ConsumerPortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseConsumer [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ConsumerPortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$20false USDtruefalse$c20120101to20120630_FinancingReceivableTroubledDebtRestructuringAxis_ConsumerPortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2012-01-01T00:00:002012-06-30T00:00:00falsefalseConsumer [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ConsumerPortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$21false USDtruefalse$c20130401to20130630_FinancingReceivableTroubledDebtRestructuringAxis_ResidentialPortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseResidential Real Estate [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ResidentialPortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$22false USDtruefalse$c20120401to20120630_FinancingReceivableTroubledDebtRestructuringAxis_ResidentialPortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2012-04-01T00:00:002012-06-30T00:00:00falsefalseResidential Real Estate [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ResidentialPortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$23false USDtruefalse$c20130101to20130630_FinancingReceivableTroubledDebtRestructuringAxis_ResidentialPortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseResidential Real Estate [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ResidentialPortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$24false USDtruefalse$c20120101to20120630_FinancingReceivableTroubledDebtRestructuringAxis_ResidentialPortfolioSegmentMemberhttp://www.sec.gov/CIK0001083643duration2012-01-01T00:00:002012-06-30T00:00:00falsefalseResidential Real Estate [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ResidentialPortfolioSegmentMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$25false USDtruefalse$c20130401to20130630_FinancingReceivableTroubledDebtRestructuringAxis_HomeEquityLineOfCreditMemberhttp://www.sec.gov/CIK0001083643duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseHome Equity Line of Credit [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldifbss_HomeEquityLineOfCreditMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$26false USDtruefalse$c20120401to20120630_FinancingReceivableTroubledDebtRestructuringAxis_HomeEquityLineOfCreditMemberhttp://www.sec.gov/CIK0001083643duration2012-04-01T00:00:002012-06-30T00:00:00falsefalseHome Equity Line of Credit [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldifbss_HomeEquityLineOfCreditMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$27false USDtruefalse$c20130101to20130630_FinancingReceivableTroubledDebtRestructuringAxis_HomeEquityLineOfCreditMemberhttp://www.sec.gov/CIK0001083643duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseHome Equity Line of Credit [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldifbss_HomeEquityLineOfCreditMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$28false USDtruefalse$c20120101to20120630_FinancingReceivableTroubledDebtRestructuringAxis_HomeEquityLineOfCreditMemberhttp://www.sec.gov/CIK0001083643duration2012-01-01T00:00:002012-06-30T00:00:00falsefalseHome Equity Line of Credit [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldifbss_HomeEquityLineOfCreditMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$29false USDtruefalse$c20130401to20130630_FinancingReceivableTroubledDebtRestructuringAxis_StudentUsGovernmentGuaranteedMemberhttp://www.sec.gov/CIK0001083643duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseStudent US Government Guaranteed [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldifbss_StudentUsGovernmentGuaranteedMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$30false USDtruefalse$c20120401to20120630_FinancingReceivableTroubledDebtRestructuringAxis_StudentUsGovernmentGuaranteedMemberhttp://www.sec.gov/CIK0001083643duration2012-04-01T00:00:002012-06-30T00:00:00falsefalseStudent US Government Guaranteed [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldifbss_StudentUsGovernmentGuaranteedMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$31false USDtruefalse$c20130101to20130630_FinancingReceivableTroubledDebtRestructuringAxis_StudentUsGovernmentGuaranteedMemberhttp://www.sec.gov/CIK0001083643duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseStudent US Government Guaranteed [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldifbss_StudentUsGovernmentGuaranteedMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$32false USDtruefalse$c20120101to20120630_FinancingReceivableTroubledDebtRestructuringAxis_StudentUsGovernmentGuaranteedMemberhttp://www.sec.gov/CIK0001083643duration2012-01-01T00:00:002012-06-30T00:00:00falsefalseStudent US Government Guaranteed [Member]us-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldifbss_StudentUsGovernmentGuaranteedMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberU010Standardhttp://fauquierbank.com/20130630Contractfbss0U002Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 3us-gaap_FinancingReceivableModificationsLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Financing Receivable, Modifications [Line Items]2false 4fbss_ModificationsNumberOfContractsfbss_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse22falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse00falsefalsefalse6truefalsefalse11falsefalsefalse7truefalsefalse00falsefalsefalse8truefalsefalse11falsefalsefalse9truefalsefalse00falsefalsefalse10truefalsefalse11falsefalsefalse11truefalsefalse22falsefalsefalse12truefalsefalse11falsefalsefalse13truefalsefalse11falsefalsefalse14truefalsefalse33falsefalsefalse15truefalsefalse11falsefalsefalse16truefalsefalse33falsefalsefalse17truefalsefalse00falsefalsefalse18truefalsefalse00falsefalsefalse19truefalsefalse00falsefalsefalse20truefalsefalse00falsefalsefalse21truefalsefalse11falsefalsefalse22truefalsefalse00falsefalsefalse23truefalsefalse11falsefalsefalse24truefalsefalse00falsefalsefalse25truefalsefalse00falsefalsefalse26truefalsefalse00falsefalsefalse27truefalsefalse00falsefalsefalse28truefalsefalse00falsefalsefalse29truefalsefalse00falsefalsefalse30truefalsefalse00falsefalsefalse31truefalsefalse00falsefalsefalse32truefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerNumber of financing receivables that have been modified by troubled debt restructurings.No definition available.false256Troubled debt restructurings, number of contracts3false 4fbss_PreModificationRecordedInvestmentfbss_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse11080001108000USD$falsetruefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse00USD$falsetruefalse6truefalsefalse237000237000USD$falsetruefalse7truefalsefalse00USD$falsetruefalse8truefalsefalse237000237000USD$falsetruefalse9truefalsefalse00USD$falsetruefalse10truefalsefalse19000001900000USD$falsetruefalse11truefalsefalse20100002010000USD$falsetruefalse12truefalsefalse19000001900000USD$falsetruefalse13truefalsefalse808000808000USD$falsetruefalse14truefalsefalse18000001800000USD$falsetruefalse15truefalsefalse808000808000USD$falsetruefalse16truefalsefalse18000001800000USD$falsetruefalse17truefalsefalse00USD$falsetruefalse18truefalsefalse00USD$falsetruefalse19truefalsefalse00USD$falsetruefalse20truefalsefalse00USD$falsetruefalse21truefalsefalse300000300000USD$falsetruefalse22truefalsefalse00USD$falsetruefalse23truefalsefalse300000300000USD$falsetruefalse24truefalsefalse00USD$falsetruefalse25truefalsefalse00USD$falsetruefalse26truefalsefalse00USD$falsetruefalse27truefalsefalse00USD$falsetruefalse28truefalsefalse00USD$falsetruefalse29truefalsefalse00USD$falsetruefalse30truefalsefalse00USD$falsetruefalse31truefalsefalse00USD$falsetruefalse32truefalsefalse00USD$falsetruefalsexbrli:monetaryItemTypemonetaryAmount of investment in financing receivables (before modification) modified by troubled debt restructurings.No definition available.false2Troubled debt restructurings, pre-modification outstanding recorded investment4false 4fbss_PostModificationRecordedInvestmentfbss_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse00falsefalsefalse6truefalsefalse237000237000falsefalsefalse7truefalsefalse00falsefalsefalse8truefalsefalse237000237000falsefalsefalse9truefalsefalse00falsefalsefalse10truefalsefalse19000001900000falsefalsefalse11truefalsefalse20100002010000falsefalsefalse12truefalsefalse19000001900000falsefalsefalse13truefalsefalse808000808000falsefalsefalse14truefalsefalse18000001800000falsefalsefalse15truefalsefalse808000808000falsefalsefalse16truefalsefalse18000001800000falsefalsefalse17truefalsefalse00falsefalsefalse18truefalsefalse00falsefalsefalse19truefalsefalse00falsefalsefalse20truefalsefalse00falsefalsefalse21truefalsefalse300000300000falsefalsefalse22truefalsefalse00falsefalsefalse23truefalsefalse300000300000falsefalsefalse24truefalsefalse00falsefalsefalse25truefalsefalse00falsefalsefalse26truefalsefalse00falsefalsefalse27truefalsefalse00falsefalsefalse28truefalsefalse00falsefalsefalse29truefalsefalse00falsefalsefalse30truefalsefalse00falsefalsefalse31truefalsefalse00falsefalsefalse32truefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of investment in financing receivables (after modification) modified by troubled debt restructurings.No definition available.false2Troubled debt restructurings, post-modification outstanding recorded investment5false 4fbss_SubsequentDefaultNumberOfContractsfbss_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse00falsefalsefalse6truefalsefalse00falsefalsefalse7truefalsefalse11falsefalsefalse8truefalsefalse00falsefalsefalse9truefalsefalse00falsefalsefalse10truefalsefalse00falsefalsefalse11truefalsefalse00falsefalsefalse12truefalsefalse00falsefalsefalse13truefalsefalse00falsefalsefalse14truefalsefalse00falsefalsefalse15truefalsefalse00falsefalsefalse16truefalsefalse00falsefalsefalse17truefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19truefalsefalse00falsefalsefalse20truefalsefalse00falsefalsefalse21truefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23truefalsefalse00falsefalsefalse24truefalsefalse00falsefalsefalse25truefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27truefalsefalse00falsefalsefalse28truefalsefalse00falsefalsefalse29truefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31truefalsefalse00falsefalsefalse32truefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerNumber of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.No definition available.false256Troubled debt restructurings that subsequently defaulted, number of contracts6false 4fbss_FinancingReceivableModificationsSubsequentDefaultPreModificationRecordedInvestmentfbss_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse00falsefalsefalse6truefalsefalse00falsefalsefalse7truefalsefalse237000237000falsefalsefalse8truefalsefalse00falsefalsefalse9truefalsefalse00falsefalsefalse10truefalsefalse00falsefalsefalse11truefalsefalse00falsefalsefalse12truefalsefalse00falsefalsefalse13truefalsefalse00falsefalsefalse14truefalsefalse00falsefalsefalse15truefalsefalse00falsefalsefalse16truefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19truefalsefalse00falsefalsefalse20truefalsefalse00falsefalsefalse21truefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23truefalsefalse00falsefalsefalse24truefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27truefalsefalse00falsefalsefalse28truefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31truefalsefalse00falsefalsefalse32truefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default related to pre-modification recorded investment.No definition available.false2Troubled debt restructurings that subsequently defaulted, pre-modification outstanding recorded investment7false 4fbss_SubsequentDefaultRecordedInvestmentfbss_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse00falsefalsefalse6truefalsefalse00falsefalsefalse7truefalsefalse237000237000falsefalsefalse8truefalsefalse00falsefalsefalse9truefalsefalse00falsefalsefalse10truefalsefalse00falsefalsefalse11truefalsefalse00falsefalsefalse12truefalsefalse00falsefalsefalse13truefalsefalse00falsefalsefalse14truefalsefalse00falsefalsefalse15truefalsefalse00falsefalsefalse16truefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19truefalsefalse00falsefalsefalse20truefalsefalse00falsefalsefalse21truefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23truefalsefalse00falsefalsefalse24truefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27truefalsefalse00falsefalsefalse28truefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31truefalsefalse00falsefalsefalse32truefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.No definition available.false2Troubled debt restructurings that subsequently defaulted, post-modification outstanding recorded investment8false 4fbss_NumberOfTdrLoansSecuredByBusinessAssetsfbss_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse1212falsefalsefalse2truefalsefalse1212falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerRepresents the number of troubled debt restructuring loans that are secured by business assets.No definition available.false256Number of TDR loans secured by business assets9false 4us-gaap_FinancingReceivableModificationsRecordedInvestmentus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse94700009470000falsefalsefalse2truefalsefalse94700009470000falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554 false2TDR loans value10false 4fbss_NumberOfTdrLoansCurrentAndPerformingfbss_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse99falsefalsefalse2truefalsefalse99falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerRepresents the number of troubled debt restructuring loans that are current and performing in accordance with modified terms.No definition available.false256Number of TDR loans current and performing11false 4fbss_TdrLoansCurrentAndPerformingfbss_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse84840008484000falsefalsefalse2truefalsefalse84840008484000falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRepresents the carrying value of troubled debt restructuring loans that are current and performing in accordance with modified terms.No definition available.false2TDR loans current and performing12false 4fbss_NumberOfTdrLoansNotPerformingInAccordanceWithModifiedTermsfbss_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse33falsefalsefalse2truefalsefalse33falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerRepresents the number of troubled debt restructuring loans that are not performing in accordance with modified terms.No definition available.false256Number of TDR loans not performing in accordance with the modified terms13false 4fbss_TdrLoansNotPerformingInAccordanceWithModifiedTermsfbss_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse986000986000falsefalsefalse2truefalsefalse986000986000falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRepresents the carrying value of troubled debt restructuring loans that are not performing in accordance with modified terms.No definition available.false2TDR loans not performing in accordance with modified terms14true 2fbss_NonPerformingAssetsRestructuredLoansStillAccruingAndLoansContractuallyPastDueAbstractfbss_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Non-performing Assets, Restructured Loans Still Accruing and Loans Contractually Past Due [Abstract]15false 3us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatusus-gaap_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:monetaryItemTypemonetaryRecorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5111-111524 false2Non-accrual loans16false 3us-gaap_OtherRealEstateus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse14060001406000falsefalsefalse2truefalsefalse14060001406000falsefalsefalse3truefalsefalse14060001406000falsefalsefalse4truefalsefalse17760001776000falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10(4)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Paragraph 12-18 -IssueDate 2006-05-01 -Chapter 11 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Other real estate owned17false 3fbss_NonperformingCorporateBondInvestmentsAtFairValuefbss_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse00falsefalsefalse2truefalsefalse00falsefalsefalse3truefalsefalse00falsefalsefalse4truefalsefalse292000292000falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryInvestment in non-performing corporate bond investments, at fair value.No definition available.false2Non-performing corporate bond investments, at fair value18false 3fbss_NonPerformingAssetsfbss_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse81040008104000falsefalsefalse2truefalsefalse81040008104000falsefalsefalse3truefalsefalse1205600012056000falsefalsefalse4truefalsefalse94500009450000falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount as of the balance sheet date of non-performing assets, including non-accrual loans, other real estate, foreclosed assets, and non-performing corporate bond investments.No definition available.true2Total non-performing assets19false 3fbss_RestructuredLoansStillAccruingfbss_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse84840008484000falsefalsefalse2truefalsefalse84840008484000falsefalsefalse3truefalsefalse55560005556000falsefalsefalse4truefalsefalse41480004148000falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount of restructured loans still accruing related to troubled debt restructuring.No definition available.false2Restructured loans still accruing20false 3fbss_StudentLoans90PDStillAccruingfbss_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse32200003220000falsefalsefalse2truefalsefalse32200003220000falsefalsefalse3truefalsefalse00falsefalsefalse4truefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount of Student Loans (U. S. Government guaranteed past due 90 or more days and still accruingNo definition available.false2Student Loans 90 PD Still Accruing21false 3fbss_LoansPastDue90DaysAndAccruingExcludingStudentLoansfbss_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse355000355000falsefalsefalse2truefalsefalse355000355000falsefalsefalse3truefalsefalse132000132000falsefalsefalse4truefalsefalse201000201000falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryOther loans past due 90 or more days and still accruingNo definition available.false2Loans past due 90 or more days and still accruing22false 3fbss_NonPerformingAndOtherRiskAssetsfbss_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalsetotalLabel1truefalsefalse2016300020163000USD$falsetruefalse2truefalsefalse2016300020163000USD$falsetruefalse3truefalsefalse1774400017744000USD$falsetruefalse4truefalsefalse1379900013799000USD$falsetruefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount of non-performing and other risk assets.No definition available.true2Total non-performing and other risk assets23false 3fbss_AllowanceForLoanLossesToTotalLoansPercentagefbss_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.01540.0154falsefalsefalse2truetruefalse0.01540.0154falsefalsefalse3truetruefalse0.01390.0139falsefalsefalse4truetruefalse0.02060.0206falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalsenum:percentItemTypepureThe percentage of allowance for loan losses to total loans.No definition available.false0Allowance for loan losses to total loans (in hundredths)24false 3fbss_NonAccrualLoansToTotalLoansPercentagefbss_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.01510.0151falsefalsefalse2truetruefalse0.01510.0151falsefalsefalse3truetruefalse0.02360.0236falsefalsefalse4truetruefalse0.01610.0161falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalsenum:percentItemTypepureThe percentage of non-accrual loans to total loans.No definition available.false0Non-accrual loans to total loans (in hundredths)25false 3fbss_AllowanceForLoanLossesToNonAccrualLoansPercentagefbss_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse1.02061.0206falsefalsefalse2truetruefalse1.02061.0206falsefalsefalse3truetruefalse0.58760.5876falsefalsefalse4truetruefalse1.281.28falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalsenum:percentItemTypepureThe percentage of allowance for loan losses to non-accrual loans.No definition available.false0Allowance for loan losses to non-accrual loans (in hundredths)26false 3fbss_TotalNonAccrualLoansAndRestructuredLoansStillAccruingToTotalLoansPercentagefbss_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.03430.0343falsefalsefalse2truetruefalse0.03430.0343falsefalsefalse3truetruefalse0.03590.0359falsefalsefalse4truetruefalse0.02510.0251falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalsenum:percentItemTypepureThe percentage of total non-accrual loans and restructured loans still accruing to total loans.No definition available.false0Total non-accrual loans and restructured loans still accruing to total loans (in hundredths)27false 3fbss_AllowanceForLoanLossesToNonAccrualLoansAndRestructuredLoansStillAccruingPercentagefbss_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.45030.4503falsefalsefalse2truetruefalse0.45030.4503falsefalsefalse3truetruefalse0.38620.3862falsefalsefalse4truetruefalse0.81950.8195falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalsenum:percentItemTypepureThe percentage of allowance for loan losses to non-accrual loans and restructured loans still accruing.No definition available.false0Allowance for loan losses to non-accrual loans and restructured loans still accruing (in hundredths)28false 3fbss_TotalNonPerformingAssetsToTotalAssetsPercentagefbss_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.01370.0137falsefalsefalse2truetruefalse0.01370.0137falsefalsefalse3truetruefalse0.020.02falsefalsefalse4truetruefalse0.01620.0162falsefalsefalse5falsetruefalse00falsefalsefalse6falsetruefalse00falsefalsefalse7falsetruefalse00falsefalsefalse8falsetruefalse00falsefalsefalse9falsetruefalse00falsefalsefalse10falsetruefalse00falsefalsefalse11falsetruefalse00falsefalsefalse12falsetruefalse00falsefalsefalse13falsetruefalse00falsefalsefalse14falsetruefalse00falsefalsefalse15falsetruefalse00falsefalsefalse16falsetruefalse00falsefalsefalse17falsetruefalse00falsefalsefalse18falsetruefalse00falsefalsefalse19falsetruefalse00falsefalsefalse20falsetruefalse00falsefalsefalse21falsetruefalse00falsefalsefalse22falsetruefalse00falsefalsefalse23falsetruefalse00falsefalsefalse24falsetruefalse00falsefalsefalse25falsetruefalse00falsefalsefalse26falsetruefalse00falsefalsefalse27falsetruefalse00falsefalsefalse28falsetruefalse00falsefalsefalse29falsetruefalse00falsefalsefalse30falsetruefalse00falsefalsefalse31falsetruefalse00falsefalsefalse32falsetruefalse00falsefalsefalsenum:percentItemTypepureThe percentage of total non-performing assets to total assets.No definition available.false0Total non-performing assets to total assets (in hundredths)falseLoans and Allowance for Loan Losses, Troubled Debt Restructurings (Details) (USD $)NoRoundingUnKnownUnKnownUnKnowntruefalsefalseSheethttp://fauquierbank.com/role/LoansAndAllowanceForLoanLossesTroubledDebtRestructuringsDetails3228