XML 82 R72.htm IDEA: XBRL DOCUMENT v3.23.3

Disclosures about Fair Value of Assets and Liabilities (Details) - Schedule of Fair Value Assets Measured on Recurring Basis - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
U.S. Treasury and Government Agencies [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	$ 6,272
U.S. Treasury and Government Agencies [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring		$ 6,764
Mortgage-backed securities [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	182,692
Mortgage-backed securities [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring		205,835
State and political subdivisions [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	9,578
State and political subdivisions [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring		11,103
Other corporate securities [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	14,226
Other corporate securities [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring		15,078
Interest rate contracts - assets [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	6,072
Interest rate contracts - assets [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring		5,538
Interest rate contracts - liabilities [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	(6,072)
Interest rate contracts - liabilities [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring		(5,538)
Forward contracts [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	85
Forward contracts [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring		26
IRLCs [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	(24)
IRLCs [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring		(20)
Level 1 [Member] | U.S. Treasury and Government Agencies [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 1 [Member] | Mortgage-backed securities [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 1 [Member] | State and political subdivisions [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 1 [Member] | Other corporate securities [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 1 [Member] | Interest rate contracts - assets [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 1 [Member] | Interest rate contracts - liabilities [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 1 [Member] | Forward contracts [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	85	26
Level 1 [Member] | IRLCs [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 2 [Member] | U.S. Treasury and Government Agencies [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	6,272	6,764
Level 2 [Member] | Mortgage-backed securities [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	182,692	205,835
Level 2 [Member] | State and political subdivisions [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	9,578	11,103
Level 2 [Member] | Other corporate securities [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	14,226	15,078
Level 2 [Member] | Interest rate contracts - assets [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	6,072	5,538
Level 2 [Member] | Interest rate contracts - liabilities [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	(6,072)	(5,538)
Level 2 [Member] | Forward contracts [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 2 [Member] | IRLCs [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 3 [Member] | U.S. Treasury and Government Agencies [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 3 [Member] | Mortgage-backed securities [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 3 [Member] | State and political subdivisions [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 3 [Member] | Other corporate securities [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 3 [Member] | Interest rate contracts - assets [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 3 [Member] | Interest rate contracts - liabilities [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 3 [Member] | Forward contracts [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring
Level 3 [Member] | IRLCs [Member] | Fair Value, Recurring [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Assets, fair value, recurring	$ (24)	$ (20)

X

- Definition

Assets fair value beginning balance.

+ References

No definition available.

+ Details

Name:	sbfg_AssetsFairValueBeginningBalance
Namespace Prefix:	sbfg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 30
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-30

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 31
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-31

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-32

+ Details

Name:	us-gaap_FairValueOptionQuantitativeDisclosuresLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_USTreasuryAndGovernmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_MortgageBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=sbfg_OtherCorporateSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=sbfg_InterestRateContractAssetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=sbfg_InterestRateContractLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_ForwardContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_InterestRateLockCommitmentsMember
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: