XML 45 R34.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Loans and Allowance for Loan Losses (Details 4) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016
Commercial & Industrial [Member] |  |  |  |  |
Summary of Impaired loan activity |  |  |  |  |
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, Recorded Investment |  |  |  |  | 50
With a specific allowance recorded, Unpaid Principal Balance |  |  |  |  | 50
With a specific allowance recorded, Related Allowance |  |  |  |  | 50
With a specific allowance recorded, Average Recorded Investment |  |  |  |  | 50
With a specific allowance recorded, Interest Income Recognized |  |  |  |  | 3
Total Recorded Investment |  |  |  |  | 50
Total Unpaid Principal Balance |  |  |  |  | 50
Total Related Allowance |  |  |  |  | 50
Total Average Recorded Investment |  |  |  |  | 50
Total Interest Income Recognized |  |  |  |  | 3
Commercial RE & Construction [Member] |  |  |  |  |
Summary of Impaired loan activity |  |  |  |  |
With no related allowance recorded, Recorded Investment | 705 |  | 705 |  | 637
With no related allowance recorded, Unpaid Principal Balance | 731 |  | 731 |  | 637
With no related allowance recorded, Related Allowance |  |  |  |  |
With no related allowance recorded, Average Recorded Investment | 754 | 647 | 757 | 658 | 655
With no related allowance recorded, Interest Income Recognized | 7 | 6 | 29 | 16 | 24
With a specific allowance recorded, Recorded Investment | 689 |  | 689 |  | 941
With a specific allowance recorded, Unpaid Principal Balance | 689 |  | 689 |  | 941
With a specific allowance recorded, Related Allowance | 146 |  | 146 |  | 119
With a specific allowance recorded, Average Recorded Investment | 689 | 1,404 | 721 | 1,404 | 1,010
With a specific allowance recorded, Interest Income Recognized |  |  | (2) |  | 45
Total Recorded Investment | 1,394 |  | 1,394 |  | 1,578
Total Unpaid Principal Balance | 1,420 |  | 1,420 |  | 1,578
Total Related Allowance | 146 |  | 146 |  | 119
Total Average Recorded Investment | 1,443 | 2,051 | 1,478 | 2,062 | 1,665
Total Interest Income Recognized | 7 | 6 | 27 | 16 | 69
Agricultural & Farmland [Member] |  |  |  |  |
Summary of Impaired loan activity |  |  |  |  |
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, 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 |  |  |  |  |
Total Recorded Investment |  |  |  |  |
Total Unpaid Principal Balance |  |  |  |  |
Total Related Allowance |  |  |  |  |
Total Average Recorded Investment |  |  |  |  |
Total Interest Income Recognized |  |  |  |  |
Residential Real Estate [Member] |  |  |  |  |
Summary of Impaired loan activity |  |  |  |  |
With no related allowance recorded, Recorded Investment | 454 |  | 454 |  | 1,248
With no related allowance recorded, Unpaid Principal Balance | 497 |  | 497 |  | 1,290
With no related allowance recorded, Related Allowance |  |  |  |  |
With no related allowance recorded, Average Recorded Investment | 535 | 1,186 | 539 | 1,195 | 1,470
With no related allowance recorded, Interest Income Recognized | 5 | 17 | 20 | 51 | 70
With a specific allowance recorded, Recorded Investment | 554 |  | 554 |  | 671
With a specific allowance recorded, Unpaid Principal Balance | 554 |  | 554 |  | 672
With a specific allowance recorded, Related Allowance | 116 |  | 116 |  | 124
With a specific allowance recorded, Average Recorded Investment | 625 | 945 | 631 | 957 | 751
With a specific allowance recorded, Interest Income Recognized | 7 | 10 | 20 | 29 | 30
Total Recorded Investment | 1,008 |  | 1,008 |  | 1,919
Total Unpaid Principal Balance | 1,051 |  | 1,051 |  | 1,962
Total Related Allowance | 116 |  | 116 |  | 124
Total Average Recorded Investment | 1,160 | 2,131 | 1,170 | 2,152 | 2,221
Total Interest Income Recognized | 12 | 27 | 40 | 80 | 100
Consumer & Other [Member] |  |  |  |  |
Summary of Impaired loan activity |  |  |  |  |
With no related allowance recorded, Recorded Investment | 114 |  | 114 |  | 129
With no related allowance recorded, Unpaid Principal Balance | 114 |  | 114 |  | 129
With no related allowance recorded, Related Allowance |  |  |  |  |
With no related allowance recorded, Average Recorded Investment | 126 | 89 | 130 | 94 | 151
With no related allowance recorded, Interest Income Recognized | 2 | 2 | 7 | 6 | 11
With a specific allowance recorded, Recorded Investment | 87 |  | 87 |  | 119
With a specific allowance recorded, Unpaid Principal Balance | 87 |  | 87 |  | 118
With a specific allowance recorded, Related Allowance | 5 |  | 5 |  | 7
With a specific allowance recorded, Average Recorded Investment | 92 | 267 | 95 | 272 | 123
With a specific allowance recorded, Interest Income Recognized | 1 | 2 | 4 | 11 | 7
Total Recorded Investment | 201 |  | 201 |  | 248
Total Unpaid Principal Balance | 201 |  | 201 |  | 247
Total Related Allowance | 5 |  | 5 |  | 7
Total Average Recorded Investment | 218 | 356 | 225 | 366 | 274
Total Interest Income Recognized | 3 | 4 | 11 | 17 | 18
All Impaired Loans less than $100,000 [Member] |  |  |  |  |
Summary of Impaired loan activity |  |  |  |  |
With no related allowance recorded, Recorded Investment | 97 |  | 97 |  | 452
With no related allowance recorded, Unpaid Principal Balance | 97 |  | 97 |  | 452
With no related allowance recorded, Related Allowance |  |  |  |  |
With no related allowance recorded, Average Recorded Investment | 97 | 438 | 97 | 398 | 452
With no related allowance recorded, Interest Income Recognized |  |  |  |  |
Total Recorded Investment | 97 |  | 97 |  | 452
Total Unpaid Principal Balance | 97 |  | 97 |  | 452
Total Related Allowance |  |  |  |  |
Total Average Recorded Investment | 97 | 438 | 97 | 398 | 452
Total Interest Income Recognized |  |  |  |  |

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 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 Impaired loan activity. + References No definition available. + Details
Name: | sbfg_ImpairedLoanActivityAbstract
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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=84173941&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 interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&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 interest income, recognized on accrual basis, on financing receivables that are recognized as impaired, for which there is no related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of investment in impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=84173941&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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

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

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