XML 57 R47.htm IDEA: XBRL DOCUMENT
v3.22.1

Loans and Allowance for Loan Losses (Details) - Schedule of impaired loan activity - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Commercial & industrial [Member] |  |  |
With no related allowance recorded: |  |  |
With no related allowance recorded, Recorded Investment | $ 118 |  | $ 118
With no related allowance recorded, Unpaid Principal Balance | 203 |  | 204
With no related allowance recorded, Related Allowance |  |  |
With no related allowance recorded, Average Recorded Investment | 216 | $ 1,598 | 217
With no related allowance recorded, Interest Income Recognized |  | 12 | 2
With a specific allowance recorded: |  |  |
With a specific allowance recorded, Recorded Investment |  |  |
With a specific allowance recorded, Unpaid Principal Balance |  |  |
With a specific allowance recorded, Related Allowance |  |  |
With a specific allowance recorded, Average Recorded Investment |  |  |
With a specific allowance recorded, Interest Income Recognized |  |  |
Totals: |  |  |
Total Recorded Investment | 118 |  | 118
Total Unpaid Principal Balance | 203 |  | 204
Total Related Allowance |  |  |
Total Average Recorded Investment | 216 | 1,598 | 217
Total Interest Income Recognized |  | 12 | 2
Commercial real estate - owner occupied [Member] |  |  |
With no related allowance recorded: |  |  |
With no related allowance recorded, Recorded Investment | 88 |  | 88
With no related allowance recorded, Unpaid Principal Balance | 88 |  | 88
With no related allowance recorded, Related Allowance |  |  |
With no related allowance recorded, Average Recorded Investment | 88 | 1,450 | 88
With no related allowance recorded, Interest Income Recognized |  |  |
With a specific allowance recorded: |  |  |
With a specific allowance recorded, Recorded Investment |  |  |
With a specific allowance recorded, Unpaid Principal Balance |  |  |
With a specific allowance recorded, Related Allowance |  |  |
With a specific allowance recorded, Average Recorded Investment |  |  |
With a specific allowance recorded, Interest Income Recognized |  |  |
Totals: |  |  |
Total Recorded Investment | 88 |  | 88
Total Unpaid Principal Balance | 88 |  | 88
Total Related Allowance |  |  |
Total Average Recorded Investment | 88 | 1,450 | 88
Total Interest Income Recognized |  |  |
Commercial real estate - nonowner occupied [Member] |  |  |
With no related allowance recorded: |  |  |
With no related allowance recorded, Recorded Investment | 215 |  | 223
With no related allowance recorded, Unpaid Principal Balance | 215 |  | 223
With no related allowance recorded, Related Allowance |  |  |
With no related allowance recorded, Average Recorded Investment | 351 | 534 | 357
With no related allowance recorded, Interest Income Recognized | 5 | 7 | 28
With a specific allowance recorded: |  |  |
With a specific allowance recorded, Recorded Investment | 43 |  | 43
With a specific allowance recorded, Unpaid Principal Balance | 173 |  | 173
With a specific allowance recorded, Related Allowance | 10 |  | 10
With a specific allowance recorded, Average Recorded Investment | 173 | 579 | 173
With a specific allowance recorded, Interest Income Recognized |  |  |
Totals: |  |  |
Total Recorded Investment | 258 |  | 266
Total Unpaid Principal Balance | 388 |  | 396
Total Related Allowance | 10 |  | 10
Total Average Recorded Investment | 524 | 1,113 | 530
Total Interest Income Recognized | 5 | 7 | 28
Agricultural [Member] |  |  |
With no related allowance recorded: |  |  |
With no related allowance recorded, Recorded Investment |  |  |
With no related allowance recorded, Unpaid Principal Balance |  |  |
With no related allowance recorded, Related Allowance |  |  |
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, Recorded Investment |  |  |
With a specific allowance recorded, Unpaid Principal Balance |  |  |
With a specific allowance recorded, Related Allowance |  |  |
With a specific allowance recorded, Average Recorded Investment |  |  |
With a specific allowance recorded, Interest Income Recognized |  |  |
Totals: |  |  |
Total Recorded Investment |  |  |
Total Unpaid Principal Balance |  |  |
Total Related Allowance |  |  |
Total Average Recorded Investment |  |  |
Total Interest Income Recognized |  |  |
Residential real estate [Member] |  |  |
With no related allowance recorded: |  |  |
With no related allowance recorded, Recorded Investment | 1,709 |  | 1,391
With no related allowance recorded, Unpaid Principal Balance | 1,775 |  | 1,458
With no related allowance recorded, Related Allowance |  |  |
With no related allowance recorded, Average Recorded Investment | 1,935 | 1,843 | 1,663
With no related allowance recorded, Interest Income Recognized | 18 | 7 | 60
With a specific allowance recorded: |  |  |
With a specific allowance recorded, Recorded Investment | 1,265 |  | 916
With a specific allowance recorded, Unpaid Principal Balance | 1,265 |  | 916
With a specific allowance recorded, Related Allowance | 172 |  | 120
With a specific allowance recorded, Average Recorded Investment | 1,280 | 647 | 933
With a specific allowance recorded, Interest Income Recognized | 1 | 6 | 20
Totals: |  |  |
Total Recorded Investment | 2,974 |  | 2,307
Total Unpaid Principal Balance | 3,040 |  | 2,374
Total Related Allowance | 172 |  | 120
Total Average Recorded Investment | 3,215 | 2,490 | 2,596
Total Interest Income Recognized | 19 | 13 | 80
HELOC [Member] |  |  |
With no related allowance recorded: |  |  |
With no related allowance recorded, Recorded Investment | 21 |  | 33
With no related allowance recorded, Unpaid Principal Balance | 21 |  | 33
With no related allowance recorded, Average Recorded Investment | 23 | 86 | 41
With no related allowance recorded, Interest Income Recognized |  | 1 | 2
With a specific allowance recorded: |  |  |
With a specific allowance recorded, Recorded Investment | 120 |  | 102
With a specific allowance recorded, Unpaid Principal Balance | 120 |  | 102
With a specific allowance recorded, Related Allowance | 4 |  | 3
With a specific allowance recorded, Average Recorded Investment | 130 | 75 | 124
With a specific allowance recorded, Interest Income Recognized | 1 | 1 | 5
Totals: |  |  |
Total Recorded Investment | 141 |  | 135
Total Unpaid Principal Balance | 141 |  | 135
Total Related Allowance | 4 |  | 3
Total Average Recorded Investment | 153 | 161 | 165
Total Interest Income Recognized | 1 | 2 | 7
Consumer [Member] |  |  |
With no related allowance recorded: |  |  |
With no related allowance recorded, Recorded Investment |  |  |
With no related allowance recorded, Unpaid Principal Balance |  |  |
With no related allowance recorded, Related Allowance |  |  |
With no related allowance recorded, Average Recorded Investment |  | 7 |
With no related allowance recorded, Interest Income Recognized |  |  |
With a specific allowance recorded: |  |  |
With a specific allowance recorded, Recorded Investment |  |  |
With a specific allowance recorded, Unpaid Principal Balance |  |  |
With a specific allowance recorded, Related Allowance |  |  |
With a specific allowance recorded, Average Recorded Investment |  |  |
With a specific allowance recorded, Interest Income Recognized |  |  |
Totals: |  |  |
Total Recorded Investment |  |  |
Total Unpaid Principal Balance |  |  |
Total Related Allowance |  |  |
Total Average Recorded Investment |  | 7 |
Total Interest Income Recognized |  |  |

X
- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References No definition available. + Details
Name: | sbfg_ImpairedFinancingReceivableRecordedInvestment1
Namespace Prefix: | sbfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of allowance for credit losses related to recorded investment. + References No definition available. + Details
Name: | sbfg_ImpairedFinancingReceivableRelatedAllowance1
Namespace Prefix: | sbfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses. + References No definition available. + Details
Name: | sbfg_ImpairedFinancingReceivableUnpaidPrincipalBalance1
Namespace Prefix: | sbfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Amount of related allowance for which there is no related allowance for credit losses. + References No definition available. + Details
Name: | sbfg_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordRelatedAllowance
Namespace Prefix: | sbfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of investment in impaired financing receivables for which there is no related allowance for credit losses. + References No definition available. + Details
Name: | sbfg_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment1
Namespace Prefix: | sbfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses. + References No definition available. + Details
Name: | sbfg_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance1
Namespace Prefix: | sbfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References No definition available. + Details
Name: | sbfg_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment1
Namespace Prefix: | sbfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses. + References No definition available. + Details
Name: | sbfg_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance1
Namespace Prefix: | sbfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Impaired Financing Receivable with specific allowance recorded Related Allowance. + References No definition available. + Details
Name: | sbfg_ImpairedFinancingReceivableWithSpecificAllowanceRecordedRelatedAllowance
Namespace Prefix: | sbfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total Interest Income Recognized. + References No definition available. + Details
Name: | sbfg_TotalInterestIncomeRecognized
Namespace Prefix: | sbfg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

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

X
- References No definition available. + Details
Name: | sbfg_WithNoRelatedAllowanceRecordedAbstract
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 http://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 http://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 http://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 http://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 http://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 http://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 http://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=us-gaap_CommercialAndIndustrialSectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sbfg_CommercialRealEstateOwnerOccupiedMember
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: |