XML 26 R52.htm IDEA: XBRL DOCUMENT v2.4.1.9
FAIR VALUE, Non-recurring Basis, Quantitative Information (Details) (Level 3 [Member], USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total $ 3,338us-gaap_FinancialInstrumentsOwnedAtFairValue $ 3,333us-gaap_FinancialInstrumentsOwnedAtFairValue
Third Party Appraisal and or Internal Evaluation [Member] | Commercial and Industrial [Member]    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total 31us-gaap_FinancialInstrumentsOwnedAtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= subk_CommercialFinancialAndAgriculturalMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalAndOrInternalEvaluationMember
40us-gaap_FinancialInstrumentsOwnedAtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= subk_CommercialFinancialAndAgriculturalMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalAndOrInternalEvaluationMember
Third Party Appraisal and or Internal Evaluation [Member] | Commercial and Industrial [Member] | Minimum [Member]    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Discounts to appraisals for market conditions and selling costs (in hundredths) 5.60%subk_DiscountsToAppraisalsForMarketConditionsAndSellingCosts
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= subk_CommercialFinancialAndAgriculturalMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalAndOrInternalEvaluationMember
[1]  
Third Party Appraisal and or Internal Evaluation [Member] | Commercial and Industrial [Member] | Maximum [Member]    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Discounts to appraisals for market conditions and selling costs (in hundredths) 50.00%subk_DiscountsToAppraisalsForMarketConditionsAndSellingCosts
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= subk_CommercialFinancialAndAgriculturalMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalAndOrInternalEvaluationMember
[1]  
Third Party Appraisal [Member] | Residential Mortgages [Member]    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total 3,107us-gaap_FinancialInstrumentsOwnedAtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalMember
3,097us-gaap_FinancialInstrumentsOwnedAtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalMember
Discounts to appraisals for market conditions and selling costs (in hundredths) 25.00%subk_DiscountsToAppraisalsForMarketConditionsAndSellingCosts
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalMember
 
Third Party Appraisal [Member] | Home Equity [Member]    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total 104us-gaap_FinancialInstrumentsOwnedAtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= subk_HomeEquityPortfolioSegmentMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalMember
98us-gaap_FinancialInstrumentsOwnedAtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= subk_HomeEquityPortfolioSegmentMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalMember
Discounts to appraisals for market conditions and selling costs (in hundredths) 25.00%subk_DiscountsToAppraisalsForMarketConditionsAndSellingCosts
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= subk_HomeEquityPortfolioSegmentMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalMember
 
Third Party Appraisal [Member] | Consumer [Member]    
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]    
Total $ 96us-gaap_FinancialInstrumentsOwnedAtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalMember
$ 98us-gaap_FinancialInstrumentsOwnedAtFairValue
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalMember
Discounts to appraisals for market conditions and selling costs (in hundredths) 25.00%subk_DiscountsToAppraisalsForMarketConditionsAndSellingCosts
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
/ us-gaap_ValuationTechniqueAxis
= subk_ThirdPartyAppraisalMember
 
[1] The Company also makes adjustments to the appraised value based upon evaluation of corporate assets, such as inventory and accounts receivable, and various other information, such as market conditions and other factors. Higher discounts may be applied to certain assets, such as inventory and accounts receivable.