XML 58 R38.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value (Details 3) (Significant Unobservable Inputs (Level 3), USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Fair value quantitative information    
Fair Value 272,864us-gaap_LoansReceivableFairValueDisclosure 277,000us-gaap_LoansReceivableFairValueDisclosure
Fair Value, Measurements, Nonrecurring | Impaired loans | Single family    
Fair value quantitative information    
Fair Value 521us-gaap_LoansReceivableFairValueDisclosure
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_SingleFamilyMember		 549us-gaap_LoansReceivableFairValueDisclosure
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_SingleFamilyMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Multi-family    
Fair value quantitative information    
Fair Value   323us-gaap_LoansReceivableFairValueDisclosure
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_MultiFamilyMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Commercial real estate    
Fair value quantitative information    
Fair Value 1,126us-gaap_LoansReceivableFairValueDisclosure
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember		 1,177us-gaap_LoansReceivableFairValueDisclosure
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Church    
Fair value quantitative information    
Fair Value 2,874us-gaap_LoansReceivableFairValueDisclosure
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember		 3,779us-gaap_LoansReceivableFairValueDisclosure
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Sales comparison approach | Single family | Minimum    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent) (9.00%)us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_SingleFamilyMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember		 (1.00%)us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_SingleFamilyMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Sales comparison approach | Single family | Maximum    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent) (3.00%)us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_SingleFamilyMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember		 9.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_SingleFamilyMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Sales comparison approach | Single family | Weighted Average    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent) (6.00%)us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_SingleFamilyMember
/ us-gaap_RangeAxis
= us-gaap_WeightedAverageMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember		 (4.00%)us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_SingleFamilyMember
/ us-gaap_RangeAxis
= us-gaap_WeightedAverageMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Sales comparison approach | Multi-family    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent)   (18.00%)us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_MultiFamilyMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Sales comparison approach | Commercial real estate | Minimum    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent) 0.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember		 0.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Sales comparison approach | Commercial real estate | Maximum    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent) 1.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember		 1.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Sales comparison approach | Commercial real estate | Weighted Average    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent) 0.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_RangeAxis
= us-gaap_WeightedAverageMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember		 0.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_RangeAxis
= us-gaap_WeightedAverageMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Sales comparison approach | Church | Minimum    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent) (12.00%)us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember		 (12.00%)us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Sales comparison approach | Church | Maximum    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent) 18.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember		 18.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Sales comparison approach | Church | Weighted Average    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent) 5.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_RangeAxis
= us-gaap_WeightedAverageMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember		 5.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_RangeAxis
= us-gaap_WeightedAverageMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Income approach | Multi-family    
Fair value quantitative information    
Capitalization rate (as a percent)   7.00%us-gaap_FairValueInputsCapRate
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_MultiFamilyMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_IncomeApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Income approach | Commercial real estate | Minimum    
Fair value quantitative information    
Capitalization rate (as a percent) 4.75%us-gaap_FairValueInputsCapRate
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_IncomeApproachValuationTechniqueMember		 5.00%us-gaap_FairValueInputsCapRate
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_IncomeApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Income approach | Commercial real estate | Maximum    
Fair value quantitative information    
Capitalization rate (as a percent) 7.25%us-gaap_FairValueInputsCapRate
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_IncomeApproachValuationTechniqueMember		 7.25%us-gaap_FairValueInputsCapRate
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_IncomeApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Income approach | Commercial real estate | Weighted Average    
Fair value quantitative information    
Capitalization rate (as a percent) 6.57%us-gaap_FairValueInputsCapRate
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_RangeAxis
= us-gaap_WeightedAverageMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_IncomeApproachValuationTechniqueMember		 6.64%us-gaap_FairValueInputsCapRate
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateOtherReceivableMember
/ us-gaap_RangeAxis
= us-gaap_WeightedAverageMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_IncomeApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Impaired loans | Income approach | Church    
Fair value quantitative information    
Capitalization rate (as a percent)   6.00%us-gaap_FairValueInputsCapRate
/ us-gaap_FairValueByAssetClassAxis
= byfc_ImpairedLoansMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_IncomeApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Real estate owned. | Church    
Fair value quantitative information    
Fair Value 2,479us-gaap_AssetsFairValueDisclosureNonrecurring
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_RealEstateAcquiredInSatisfactionOfDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember		 2,082us-gaap_AssetsFairValueDisclosureNonrecurring
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_RealEstateAcquiredInSatisfactionOfDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
Fair Value, Measurements, Nonrecurring | Real estate owned. | Sales comparison approach | Church | Minimum    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent) (2.00%)us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_RealEstateAcquiredInSatisfactionOfDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember		 (1.00%)us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_RealEstateAcquiredInSatisfactionOfDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Real estate owned. | Sales comparison approach | Church | Maximum    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent) (1.00%)us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_RealEstateAcquiredInSatisfactionOfDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember		 2.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_RealEstateAcquiredInSatisfactionOfDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember
Fair Value, Measurements, Nonrecurring | Real estate owned. | Sales comparison approach | Church | Weighted Average    
Fair value quantitative information    
Adjustment for differences between the comparable sales (as a percent) (1.00%)us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_RealEstateAcquiredInSatisfactionOfDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_RangeAxis
= us-gaap_WeightedAverageMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember		 0.00%us-gaap_FairValueInputsComparabilityAdjustments
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_RealEstateAcquiredInSatisfactionOfDebtMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsNonrecurringMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= byfc_ChurchMember
/ us-gaap_RangeAxis
= us-gaap_WeightedAverageMember
/ us-gaap_ValuationTechniqueAxis
= us-gaap_MarketApproachValuationTechniqueMember