XML 109 R102.htm IDEA: XBRL DOCUMENT v2.4.1.9
Note 18 - Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Note 18 - Fair Value Measurements (Details) [Line Items]    
Real Estate Owned, Valuation Allowance, Provision (in Dollars) $ 1,513us-gaap_RealEstateOwnedValuationAllowanceProvision1 $ 726us-gaap_RealEstateOwnedValuationAllowanceProvision1
Impaired Loans Receivable [Member] | Minimum [Member]    
Note 18 - Fair Value Measurements (Details) [Line Items]    
Fair Value Inputs, Discount Rate 15.00%us-gaap_FairValueInputsDiscountRate
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= bsf_ImpairedLoansReceivableMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
 
Impaired Loans Receivable [Member] | Maximum [Member]    
Note 18 - Fair Value Measurements (Details) [Line Items]    
Fair Value Inputs, Discount Rate 25.00%us-gaap_FairValueInputsDiscountRate
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= bsf_ImpairedLoansReceivableMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
 
Impaired Loans Receivable [Member]    
Note 18 - Fair Value Measurements (Details) [Line Items]    
Fair Value Input, Selling Costs 8.00%bsf_FairValueInputSellingCosts
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= bsf_ImpairedLoansReceivableMember
 
Real Estate Owned [Member] | Minimum [Member]    
Note 18 - Fair Value Measurements (Details) [Line Items]    
Fair Value Inputs, Discount Rate 0.00%us-gaap_FairValueInputsDiscountRate
/ us-gaap_FairValueByAssetClassAxis
= bsf_RealEstateOwnedMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
 
Real Estate Owned [Member] | Maximum [Member]    
Note 18 - Fair Value Measurements (Details) [Line Items]    
Fair Value Inputs, Discount Rate 25.00%us-gaap_FairValueInputsDiscountRate
/ us-gaap_FairValueByAssetClassAxis
= bsf_RealEstateOwnedMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
 
Real Estate Owned [Member]    
Note 18 - Fair Value Measurements (Details) [Line Items]    
Fair Value Input, Selling Costs 8.00%bsf_FairValueInputSellingCosts
/ us-gaap_FairValueByAssetClassAxis
= bsf_RealEstateOwnedMember