XML 49 R38.htm IDEA: XBRL DOCUMENT v3.7.0.1

Fair Value of Assets and Liabilities (Details) - Available-For-Sale Securities [Member] - USD ($) $ in Thousands	Jun. 30, 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	$ 17,757	$ 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	70,613	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	14,907	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	525	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	(525)	(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	17,757	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	70,613	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	14,907	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	525	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	(525)	(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: