XML 57 R47.htm IDEA: XBRL DOCUMENT
v3.22.2

Loans and Allowance for Loan Losses (Details) - Schedule of impaired loan activity - Loans [Member] - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2021
Commercial & industrial [Member] |  |
With no related allowance recorded: |  |
With no related allowance recorded, Average Recorded Investment | $ 849 | $ 855
With no related allowance recorded, Interest Income Recognized | 11 | 22
With a specific allowance recorded: |  |
With a specific allowance recorded, Average Recorded Investment |  |
With a specific allowance recorded, Interest Income Recognized |  |
Totals: |  |
Total Average Recorded Investment | 849 | 855
Total Interest Income Recognized | 11 | 22
Commercial real estate - owner occupied [Member] |  |
With no related allowance recorded: |  |
With no related allowance recorded, Average Recorded Investment | 88 | 88
With no related allowance recorded, Interest Income Recognized |  |
With a specific allowance recorded: |  |
With a specific allowance recorded, Average Recorded Investment |  |
With a specific allowance recorded, Interest Income Recognized |  |
Totals: |  |
Total Average Recorded Investment | 88 | 88
Total Interest Income Recognized |  |
Commercial real estate - nonowner occupied [Member] |  |
With no related allowance recorded: |  |
With no related allowance recorded, Average Recorded Investment | 531 | 532
With no related allowance recorded, Interest Income Recognized | 8 | 15
With a specific allowance recorded: |  |
With a specific allowance recorded, Average Recorded Investment | 579 | 579
With a specific allowance recorded, Interest Income Recognized |  |
Totals: |  |
Total Average Recorded Investment | 1,110 | 1,111
Total Interest Income Recognized | 8 | 15
Agricultural [Member] |  |
With no related allowance recorded: |  |
With no related allowance recorded, Average Recorded Investment |  |
With no related allowance recorded, Interest Income Recognized |  |
With a specific allowance recorded: |  |
With a specific allowance recorded, Average Recorded Investment |  |
With a specific allowance recorded, Interest Income Recognized |  |
Totals: |  |
Total Average Recorded Investment |  |
Total Interest Income Recognized |  |
Residential real estate [Member] |  |
With no related allowance recorded: |  |
With no related allowance recorded, Average Recorded Investment | 1,447 | 1,453
With no related allowance recorded, Interest Income Recognized | 13 | 26
With a specific allowance recorded: |  |
With a specific allowance recorded, Average Recorded Investment | 644 | 645
With a specific allowance recorded, Interest Income Recognized | 4 | 9
Totals: |  |
Total Average Recorded Investment | 2,091 | 2,098
Total Interest Income Recognized | 17 | 35
HELOC [Member] |  |
With no related allowance recorded: |  |
With no related allowance recorded, Average Recorded Investment | 44 | 46
With no related allowance recorded, Interest Income Recognized |  | 1
With a specific allowance recorded: |  |
With a specific allowance recorded, Average Recorded Investment | 127 | 129
With a specific allowance recorded, Interest Income Recognized | 1 | 3
Totals: |  |
Total Average Recorded Investment | 171 | 175
Total Interest Income Recognized | 1 | 4
Consumer [Member] |  |
With no related allowance recorded: |  |
With no related allowance recorded, Average Recorded Investment | 5 | 6
With no related allowance recorded, Interest Income Recognized |  |
With a specific allowance recorded: |  |
With a specific allowance recorded, Average Recorded Investment |  |
With a specific allowance recorded, Interest Income Recognized |  |
Totals: |  |
Total Average Recorded Investment | 5 | 6
Total Interest Income Recognized |  |

X
- References No definition available. + Details
Name: | sbfg_TotalInterestIncomeRecognized1
Namespace Prefix: | sbfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | sbfg_TotalsAbstract000
Namespace Prefix: | sbfg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | sbfg_WithASpecificAllowanceRecordedAbstract000
Namespace Prefix: | sbfg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition With a specific allowance recorded, Interest Income Recognized. + References No definition available. + Details
Name: | sbfg_WithASpecificAllowanceRecordedInterestIncomeRecognized
Namespace Prefix: | sbfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | sbfg_WithNoRelatedAllowanceRecordedAbstract000
Namespace Prefix: | sbfg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of interest income, recognized on accrual basis, on financing receivables, for which there is a related allowance for credit losses and are recognized as impaired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sbfg_CommercialIndustrialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sbfg_CommercialRealEstateNonownerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sbfg_AgriculturalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sbfg_ConsumerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |