XML 51 R39.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Fair Value of Assets and Liabilities (Details) - Available-For-Sale Securities [Member] - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
--- | --- | ---
U.S. Treasury and Government Agencies [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring | $ 21,113 | $ 13,358
Mortgage-backed securities [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring | 72,147 | 61,603
State and political subdivisions [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring | 14,607 | 15,097
Equity securities [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring | 70 | 70
Interest rate contracts - assets [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring | 611 | 623
Interest rate contracts - liabilities [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring | (611) | (623)
Level 1 [Member] | U.S. Treasury and Government Agencies [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring |  |
Level 1 [Member] | Mortgage-backed securities [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring |  |
Level 1 [Member] | State and political subdivisions [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring |  |
Level 1 [Member] | Equity securities [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring |  |
Level 1 [Member] | Interest rate contracts - assets [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring |  |
Level 1 [Member] | Interest rate contracts - liabilities [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring |  |
Level 2 [Member] | U.S. Treasury and Government Agencies [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring | 21,113 | 13,358
Level 2 [Member] | Mortgage-backed securities [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring | 72,147 | 61,603
Level 2 [Member] | State and political subdivisions [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring | 14,607 | 15,097
Level 2 [Member] | Equity securities [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring | 70 | 70
Level 2 [Member] | Interest rate contracts - assets [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring | 611 | 623
Level 2 [Member] | Interest rate contracts - liabilities [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring | (611) | (623)
Level 3 [Member] | U.S. Treasury and Government Agencies [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring |  |
Level 3 [Member] | Mortgage-backed securities [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring |  |
Level 3 [Member] | State and political subdivisions [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring |  |
Level 3 [Member] | Equity securities [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring |  |
Level 3 [Member] | Interest rate contracts - assets [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring |  |
Level 3 [Member] | Interest rate contracts - liabilities [Member] |  |
Summary of fair value measurements of assets measured at fair value on a recurring basis |  |
Assets, Fair value, Recurring |  |

X
- Definition Fair value measurements of securities measured at fair value on a recurring basis. + References No definition available. + Details
Name: | sbfg_FairValueMeasurementsOfSecuritiesMeasuredAtFairValueOnRecurringBasisAbstract
Namespace Prefix: | sbfg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureRecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_AvailableforsaleSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USTreasuryAndGovernmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_MortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=sbfg_InterestRateContractsAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=sbfg_InterestRateContractsLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |