XML 43 R45.htm IDEA: XBRL DOCUMENT v2.4.1.9
Loans (Details 4) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Recorded investment    
Loans with no related allowance recorded $ 3,047us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment $ 3,725us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
Loans with an allowance recorded 8,489us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment 7,826us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
Total 11,536us-gaap_ImpairedFinancingReceivableRecordedInvestment 11,551us-gaap_ImpairedFinancingReceivableRecordedInvestment
Unpaid principal balance    
Loans with no related allowance recorded 5,940us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance 6,987us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
Loans with an allowance recorded 10,437us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance 9,397us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
Total 16,377us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance 16,384us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
Related allowance 1,137us-gaap_ImpairedFinancingReceivableRelatedAllowance 1,376us-gaap_ImpairedFinancingReceivableRelatedAllowance
Average recorded investment    
Loans with no related allowance recorded 3,388us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment 9,629us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
Loans with an allowance recorded 8,158us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment 9,068us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
Total 11,546us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment 18,697us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
Additional disclosure    
Loans past due more than 90 days or more and still accruing interest 1us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing 329us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
Recorded investment in non-accrual loans 5,279us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus 5,199us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Commercial and industrial    
Recorded investment    
Loans with no related allowance recorded 749us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
896us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
Loans with an allowance recorded 6,292us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
6,343us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
Total 7,041us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
7,239us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
Unpaid principal balance    
Loans with no related allowance recorded 1,857us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
3,596us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
Loans with an allowance recorded 7,861us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
7,914us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
Total 9,718us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
11,510us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
Related allowance 586us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
1,029us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
Average recorded investment    
Loans with no related allowance recorded 823us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
996us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
Loans with an allowance recorded 6,318us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
6,797us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
Total 7,141us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
7,793us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
Additional disclosure    
Loans past due more than 90 days or more and still accruing interest 1us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
1us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
Recorded investment in non-accrual loans 1,276us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
1,381us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialAndIndustrialPortfolioSegmentMember
Construction and development excluding undeveloped land    
Recorded investment    
Loans with no related allowance recorded 26us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
26us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
Loans with an allowance recorded 490us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
490us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
Total 516us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
516us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
Unpaid principal balance    
Loans with no related allowance recorded 151us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
151us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
Loans with an allowance recorded 490us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
490us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
Total 641us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
641us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
Related allowance 90us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
15us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
Average recorded investment    
Loans with no related allowance recorded 26us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
26us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
Loans with an allowance recorded 490us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
196us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
Total 516us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
222us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
Additional disclosure    
Loans past due more than 90 days or more and still accruing interest   241us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
Recorded investment in non-accrual loans 516us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
516us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_ConstructionAndDevelopmentExcludingUndevelopedLandPortfolioSegmentMember
Undeveloped land    
Average recorded investment    
Loans with no related allowance recorded   5,608us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_UndevelopmentLandPortfolioSegmentMember
Total   5,608us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_UndevelopmentLandPortfolioSegmentMember
Real estate mortgage    
Recorded investment    
Loans with no related allowance recorded 2,272us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
2,803us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
Loans with an allowance recorded 1,633us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
917us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
Total 3,905us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
3,720us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
Unpaid principal balance    
Loans with no related allowance recorded 3,932us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
3,240us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
Loans with an allowance recorded 2,012us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
917us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
Total 5,944us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
4,157us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
Related allowance 387us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
256us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
Average recorded investment    
Loans with no related allowance recorded 2,539us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
2,999us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
Loans with an allowance recorded 1,275us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
1,995us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
Total 3,814us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
4,994us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
Additional disclosure    
Loans past due more than 90 days or more and still accruing interest   87us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
Recorded investment in non-accrual loans 3,487us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
3,302us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_RealEstateMortgagePortfolioSegmentMember
Commercial investment    
Recorded investment    
Loans with no related allowance recorded 112us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
113us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
Loans with an allowance recorded 122us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
122us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
Total 234us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
235us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
Unpaid principal balance    
Loans with no related allowance recorded 1,704us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
113us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
Loans with an allowance recorded 122us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
122us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
Total 1,826us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
235us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
Average recorded investment    
Loans with no related allowance recorded 113us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
198us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
Loans with an allowance recorded 122us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
640us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
Total 235us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
838us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
Additional disclosure    
Recorded investment in non-accrual loans 234us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
235us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_CommercialInvestmentMember
Owner occupied commercial    
Recorded investment    
Loans with no related allowance recorded 1,330us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
1,784us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
Loans with an allowance recorded 1,432us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
716us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
Total 2,762us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
2,500us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
Unpaid principal balance    
Loans with no related allowance recorded 1,398us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
2,221us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
Loans with an allowance recorded 1,811us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
716us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
Total 3,209us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
2,937us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
Related allowance 243us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
112us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
Average recorded investment    
Loans with no related allowance recorded 1,557us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
1,939us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
Loans with an allowance recorded 1,074us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
704us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
Total 2,631us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
2,643us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
Additional disclosure    
Recorded investment in non-accrual loans 2,344us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
2,081us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OwnerOccupiedCommercialMember
1-4 family residential    
Recorded investment    
Loans with no related allowance recorded 721us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
870us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
Loans with an allowance recorded 79us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
79us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
Total 800us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
949us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
Unpaid principal balance    
Loans with no related allowance recorded 721us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
870us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
Loans with an allowance recorded 79us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
79us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
Total 800us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
949us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
Related allowance 144us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
144us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
Average recorded investment    
Loans with no related allowance recorded 796us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
782us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
Loans with an allowance recorded 79us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
651us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
Total 875us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
1,433us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
Additional disclosure    
Loans past due more than 90 days or more and still accruing interest   73us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
Recorded investment in non-accrual loans 800us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
950us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_OneToFourFamilyResidentialMember
Home equity - first lien    
Average recorded investment    
Loans with no related allowance recorded   11us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityFirstLienMember
Total   11us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityFirstLienMember
Additional disclosure    
Loans past due more than 90 days or more and still accruing interest   14us-gaap_FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityFirstLienMember
Home equity - junior lien    
Recorded investment    
Loans with no related allowance recorded 109us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
36us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
Total 109us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
36us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
Unpaid principal balance    
Loans with no related allowance recorded 109us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
36us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
Total 109us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
36us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
Average recorded investment    
Loans with no related allowance recorded 73us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
69us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
Total 73us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
69us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
Additional disclosure    
Recorded investment in non-accrual loans 109us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
36us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= sybt_HomeEquityJuniorLienMember
Consumer    
Recorded investment    
Loans with an allowance recorded 74us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
76us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
Total 74us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
76us-gaap_ImpairedFinancingReceivableRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
Unpaid principal balance    
Loans with an allowance recorded 74us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
76us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
Total 74us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
76us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
Related allowance 74us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
76us-gaap_ImpairedFinancingReceivableRelatedAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
Average recorded investment    
Loans with an allowance recorded 75us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
80us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
Total $ 75us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
$ 80us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember