2.4.0.84084 - Disclosure - FAIR VALUE (Details 5)truefalseIn Thousands, unless otherwise specifiedfalse1false falsefalseD2013Q2YTD_CommercialAndIndustrialLoanMember_ImpairedFinancingReceivablesMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_WeightedAverageMember_LiquidationValueOfInventoryValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli02false falsefalseD2012_CommercialAndIndustrialLoanMember_ImpairedFinancingReceivablesMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_WeightedAverageMember_LiquidationValueOfInventoryValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2012-01-01T00:00:002012-12-31T00:00:00PureStandardhttp://www.xbrl.org/2003/instancepurexbrli01false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse1false USDtruefalse$I2013Q2_ImpairedFinancingReceivablesMemberhttp://www.sec.gov/CIK0000720002instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Impaired Loans2true 3us-gaap_FairValueInputsAssetsQuantitativeInformationLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Quantitative information about level 3 fair value measurements for financial instruments measured at fair value3false 4us-gaap_AssetsFairValueDisclosureus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse68290006829USD$falsetruefalse2truefalsefalse59750005975USD$falsetruefalsexbrli:monetaryItemTypemonetaryThis element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false2Fair Value4false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3false truefalseD2013Q2YTD_ImpairedFinancingReceivablesMember_MinimumMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseMinimumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MinimumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Impaired Loans | Minimum5true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs6false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.000.00falsefalsefalse2falsefalsefalse00falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)7false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse4false truefalseD2013Q2YTD_ImpairedFinancingReceivablesMember_MaximumMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseMaximumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MaximumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Impaired Loans | Maximum8true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs9false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.500.50falsefalsefalse2falsefalsefalse00falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)10false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse5false USDtruefalse$I2013Q2_ImpairedFinancingReceivablesMember_CommercialAndIndustrialLoanMemberhttp://www.sec.gov/CIK0000720002instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseCommercial & Industrialus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_CommercialAndIndustrialLoanMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Impaired Loans | Commercial & Industrial11true 3us-gaap_FairValueInputsAssetsQuantitativeInformationLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Quantitative information about level 3 fair value measurements for financial instruments measured at fair value12false 4us-gaap_AssetsFairValueDisclosureus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse153000153USD$falsefalsefalse2truefalsefalse155000155USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false2Fair Value13false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse7false USDtruefalse$I2013Q2_ImpairedFinancingReceivablesMember_FarmReceivableMemberhttp://www.sec.gov/CIK0000720002instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseFarm real estateus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_FarmReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Impaired Loans | Farm real estate14true 3us-gaap_FairValueInputsAssetsQuantitativeInformationLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Quantitative information about level 3 fair value measurements for financial instruments measured at fair value15false 4us-gaap_AssetsFairValueDisclosureus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse5400054USD$falsefalsefalse2truefalsefalse480000480USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false2Fair Value16false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse9false USDtruefalse$I2013Q2_ImpairedFinancingReceivablesMember_ConstructionAndDevelopmentReceivableMemberhttp://www.sec.gov/CIK0000720002instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseConstruction and developmentus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ConstructionAndDevelopmentReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Impaired Loans | Construction and development17true 3us-gaap_FairValueInputsAssetsQuantitativeInformationLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Quantitative information about level 3 fair value measurements for financial instruments measured at fair value18false 4us-gaap_AssetsFairValueDisclosureus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse249000249USD$falsefalsefalse2truefalsefalse404000404USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false2Fair Value19false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse11false USDtruefalse$I2013Q2_ImpairedFinancingReceivablesMember_RealEstateOtherReceivableMemberhttp://www.sec.gov/CIK0000720002instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseOther real estateus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_RealEstateOtherReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Impaired Loans | Other real estate20true 3us-gaap_FairValueInputsAssetsQuantitativeInformationLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Quantitative information about level 3 fair value measurements for financial instruments measured at fair value21false 4us-gaap_AssetsFairValueDisclosureus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse63730006373USD$falsefalsefalse2truefalsefalse49360004936USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false2Fair Value22false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse13false USDtruefalse$I2013Q2_OtherRealEstateOwnedMemberhttp://www.sec.gov/CIK0000720002instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseOther real estate ownedus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherRealEstateOwnedMemberus-gaap_FairValueByAssetClassAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Other real estate owned23true 3us-gaap_FairValueInputsAssetsQuantitativeInformationLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Quantitative information about level 3 fair value measurements for financial instruments measured at fair value24false 4us-gaap_AssetsFairValueDisclosureus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse10400001040USD$falsefalsefalse2truefalsefalse26620002662USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false2Fair Value25false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse15false truefalseD2013Q2YTD_OtherRealEstateOwnedMember_MinimumMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseOther real estate ownedus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherRealEstateOwnedMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseMinimumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MinimumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Other real estate owned | Minimum26true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs27false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.000.00falsefalsefalse2falsefalsefalse00falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)28false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse16false truefalseD2013Q2YTD_OtherRealEstateOwnedMember_MaximumMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseOther real estate ownedus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherRealEstateOwnedMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseMaximumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MaximumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Other real estate owned | Maximum29true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs30false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.500.50falsefalsefalse2falsefalsefalse00falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)31false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse17false USDtruefalse$I2013Q2_OtherRealEstateOwnedMember_ConstructionAndDevelopmentReceivableMemberhttp://www.sec.gov/CIK0000720002instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseOther real estate ownedus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherRealEstateOwnedMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseConstruction and developmentus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ConstructionAndDevelopmentReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Other real estate owned | Construction and development32true 3us-gaap_FairValueInputsAssetsQuantitativeInformationLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Quantitative information about level 3 fair value measurements for financial instruments measured at fair value33false 4us-gaap_AssetsFairValueDisclosureus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse618000618USD$falsefalsefalse2truefalsefalse17640001764USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false2Fair Value34false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse19false USDtruefalse$I2013Q2_OtherRealEstateOwnedMember_OtherAndFamily1To4ReceivableMemberhttp://www.sec.gov/CIK0000720002instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseOther real estate ownedus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherRealEstateOwnedMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseOther and 1-4 familyus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherAndFamily1To4ReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Other real estate owned | Other and 1-4 family35true 3us-gaap_FairValueInputsAssetsQuantitativeInformationLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Quantitative information about level 3 fair value measurements for financial instruments measured at fair value36false 4us-gaap_AssetsFairValueDisclosureus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse422000422USD$falsefalsefalse2truefalsefalse898000898USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false2Fair Value37false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse21false USDtruefalse$I2013Q2_ServicingContractsMemberhttp://www.sec.gov/CIK0000720002instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseMortgage servicing rightsus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ServicingContractsMemberus-gaap_FairValueByAssetClassAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Mortgage servicing rights38true 3us-gaap_FairValueInputsAssetsQuantitativeInformationLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Quantitative information about level 3 fair value measurements for financial instruments measured at fair value39false 4us-gaap_AssetsFairValueDisclosureus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse25690002569USD$falsetruefalse2truefalsefalse29420002942USD$falsetruefalsexbrli:monetaryItemTypemonetaryThis element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false2Fair Value40false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse23false truefalseD2012_CommercialAndIndustrialLoanMember_ImpairedFinancingReceivablesMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_LiquidationValueOfInventoryValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2012-01-01T00:00:002012-12-31T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseCommercial & Industrialus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_CommercialAndIndustrialLoanMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseLiquidation value of inventoryus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_LiquidationValueOfInventoryValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Commercial & Industrial | Liquidation value of inventory41true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs42false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2truetruefalse0.150.15falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)43false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse24false truefalseD2013Q2YTD_CommercialAndIndustrialLoanMember_ImpairedFinancingReceivablesMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_MinimumMember_LiquidationValueOfInventoryValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseCommercial & Industrialus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_CommercialAndIndustrialLoanMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseLiquidation value of inventoryus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_LiquidationValueOfInventoryValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseMinimumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MinimumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Commercial & Industrial | Liquidation value of inventory | Minimum44true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs45false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.100.10falsefalsefalse2falsefalsefalse00falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)46false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse25false truefalseD2013Q2YTD_CommercialAndIndustrialLoanMember_ImpairedFinancingReceivablesMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_MaximumMember_LiquidationValueOfInventoryValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseCommercial & Industrialus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_CommercialAndIndustrialLoanMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseLiquidation value of inventoryus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_LiquidationValueOfInventoryValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseMaximumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MaximumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Commercial & Industrial | Liquidation value of inventory | Maximum47true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs48false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.350.35falsefalsefalse2falsefalsefalse00falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)49false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse26false truefalseD2013Q2YTD_CommercialAndIndustrialLoanMember_ImpairedFinancingReceivablesMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_WeightedAverageMember_LiquidationValueOfInventoryValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseCommercial & Industrialus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_CommercialAndIndustrialLoanMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseLiquidation value of inventoryus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_LiquidationValueOfInventoryValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseAvgus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_WeightedAverageMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Commercial & Industrial | Liquidation value of inventory | Avg50true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs51false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.130.13falsefalsefalse2truetruefalse0.150.15falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)52false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse28false truefalseD2013Q2YTD_FairValueMeasurementsNonrecurringMember_FairValueInputsLevel3Member_ImpairedFinancingReceivablesMember_FarmReceivableMember_MarketApproachValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseFarm real estateus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_FarmReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Farm real estate | Sales comparison approach53true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs54false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.300.30falsefalsefalse2falsefalsefalse00falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)55false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse29false truefalseD2012_FarmReceivableMember_ImpairedFinancingReceivablesMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_MinimumMember_MarketApproachValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2012-01-01T00:00:002012-12-31T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseFarm real estateus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_FarmReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseMinimumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MinimumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Farm real estate | Sales comparison approach | Minimum56true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs57false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2truetruefalse0.350.35falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)58false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse30false truefalseD2012_FarmReceivableMember_ImpairedFinancingReceivablesMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_MaximumMember_MarketApproachValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2012-01-01T00:00:002012-12-31T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseFarm real estateus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_FarmReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseMaximumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MaximumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Farm real estate | Sales comparison approach | Maximum59true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs60false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2truetruefalse0.400.40falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)61false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse31false truefalseD2013Q2YTD_FarmReceivableMember_ImpairedFinancingReceivablesMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_WeightedAverageMember_MarketApproachValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseFarm real estateus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_FarmReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseAvgus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_WeightedAverageMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Farm real estate | Sales comparison approach | Avg62true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs63false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.300.30falsefalsefalse2truetruefalse0.370.37falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)64false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse33false truefalseD2013Q2YTD_ConstructionAndDevelopmentReceivableMember_ImpairedFinancingReceivablesMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_MarketApproachValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseConstruction and developmentus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ConstructionAndDevelopmentReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Construction and development | Sales comparison approach65true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs66false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.100.10falsefalsefalse2falsefalsefalse00falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)67false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse34false truefalseD2012_FairValueMeasurementsNonrecurringMember_FairValueInputsLevel3Member_ImpairedFinancingReceivablesMember_ConstructionAndDevelopmentReceivableMember_MarketApproachValuationTechniqueMember_MinimumMemberhttp://www.sec.gov/CIK0000720002duration2012-01-01T00:00:002012-12-31T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseConstruction and developmentus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ConstructionAndDevelopmentReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseMinimumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MinimumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Construction and development | Sales comparison approach | Minimum68true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs69false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2truetruefalse0.100.10falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)70false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse35false truefalseD2012_FairValueMeasurementsNonrecurringMember_FairValueInputsLevel3Member_ImpairedFinancingReceivablesMember_ConstructionAndDevelopmentReceivableMember_MarketApproachValuationTechniqueMember_MaximumMemberhttp://www.sec.gov/CIK0000720002duration2012-01-01T00:00:002012-12-31T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseConstruction and developmentus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ConstructionAndDevelopmentReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseMaximumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MaximumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Construction and development | Sales comparison approach | Maximum71true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs72false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2truetruefalse0.500.50falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)73false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse36false truefalseD2013Q2YTD_FairValueMeasurementsNonrecurringMember_FairValueInputsLevel3Member_ImpairedFinancingReceivablesMember_ConstructionAndDevelopmentReceivableMember_MarketApproachValuationTechniqueMember_WeightedAverageMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseConstruction and developmentus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ConstructionAndDevelopmentReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseAvgus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_WeightedAverageMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Construction and development | Sales comparison approach | Avg74true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs75false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.100.10falsefalsefalse2truetruefalse0.410.41falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)76false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse38false truefalseD2013Q2YTD_FairValueMeasurementsNonrecurringMember_FairValueInputsLevel3Member_ImpairedFinancingReceivablesMember_RealEstateOtherReceivableMember_MarketApproachValuationTechniqueMember_MinimumMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseOther real estateus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_RealEstateOtherReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseMinimumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MinimumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Other real estate | Sales comparison approach | Minimum77true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs78false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.000.00falsefalsefalse2truetruefalse0.000.00falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)79false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse40false truefalseD2013Q2YTD_FairValueMeasurementsNonrecurringMember_FairValueInputsLevel3Member_ImpairedFinancingReceivablesMember_RealEstateOtherReceivableMember_MarketApproachValuationTechniqueMember_MaximumMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseOther real estateus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_RealEstateOtherReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseMaximumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MaximumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Other real estate | Sales comparison approach | Maximum80true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs81false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.400.40falsefalsefalse2truetruefalse0.600.60falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)82false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse42false truefalseD2013Q2YTD_FairValueMeasurementsNonrecurringMember_FairValueInputsLevel3Member_ImpairedFinancingReceivablesMember_RealEstateOtherReceivableMember_MarketApproachValuationTechniqueMember_WeightedAverageMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseImpaired Loansus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ImpairedFinancingReceivablesMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseOther real estateus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_RealEstateOtherReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseAvgus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_WeightedAverageMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Impaired Loans | Other real estate | Sales comparison approach | Avg83true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs84false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.170.17falsefalsefalse2truetruefalse0.320.32falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)85false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse44false truefalseD2013Q2YTD_ConstructionAndDevelopmentReceivableMember_OtherRealEstateOwnedMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_MarketApproachValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseOther real estate ownedus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherRealEstateOwnedMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseConstruction and developmentus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ConstructionAndDevelopmentReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Other real estate owned | Construction and development | Sales comparison approach86true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs87false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.100.10falsefalsefalse2falsefalsefalse00falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)88false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse45false truefalseD2012_ConstructionAndDevelopmentReceivableMember_OtherRealEstateOwnedMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_MinimumMember_MarketApproachValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2012-01-01T00:00:002012-12-31T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseOther real estate ownedus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherRealEstateOwnedMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseConstruction and developmentus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ConstructionAndDevelopmentReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseMinimumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MinimumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Other real estate owned | Construction and development | Sales comparison approach | Minimum89true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs90false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2truetruefalse0.100.10falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)91false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse46false truefalseD2012_ConstructionAndDevelopmentReceivableMember_OtherRealEstateOwnedMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_MaximumMember_MarketApproachValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2012-01-01T00:00:002012-12-31T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseOther real estate ownedus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherRealEstateOwnedMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseConstruction and developmentus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ConstructionAndDevelopmentReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseMaximumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MaximumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Other real estate owned | Construction and development | Sales comparison approach | Maximum92true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs93false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2truetruefalse0.260.26falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)94false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse47false truefalseD2013Q2YTD_ConstructionAndDevelopmentReceivableMember_OtherRealEstateOwnedMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_WeightedAverageMember_MarketApproachValuationTechniqueMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseOther real estate ownedus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherRealEstateOwnedMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseConstruction and developmentus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_ConstructionAndDevelopmentReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseAvgus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_WeightedAverageMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Other real estate owned | Construction and development | Sales comparison approach | Avg95true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs96false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.100.10falsefalsefalse2truetruefalse0.150.15falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)97false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse49false truefalseD2013Q2YTD_FairValueMeasurementsNonrecurringMember_FairValueInputsLevel3Member_OtherRealEstateOwnedMember_OtherAndFamily1To4ReceivableMember_MarketApproachValuationTechniqueMember_MinimumMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseOther real estate ownedus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherRealEstateOwnedMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseOther and 1-4 familyus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherAndFamily1To4ReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseMinimumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MinimumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Other real estate owned | Other and 1-4 family | Sales comparison approach | Minimum98true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs99false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.100.10falsefalsefalse2truetruefalse0.020.02falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)100false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse51false truefalseD2013Q2YTD_FairValueMeasurementsNonrecurringMember_FairValueInputsLevel3Member_OtherRealEstateOwnedMember_OtherAndFamily1To4ReceivableMember_MarketApproachValuationTechniqueMember_MaximumMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseOther real estate ownedus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherRealEstateOwnedMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseOther and 1-4 familyus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherAndFamily1To4ReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseMaximumus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MaximumMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Other real estate owned | Other and 1-4 family | Sales comparison approach | Maximum101true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs102false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.490.49falsefalsefalse2truetruefalse0.350.35falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)103false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse53false truefalseD2013Q2YTD_FairValueMeasurementsNonrecurringMember_FairValueInputsLevel3Member_OtherRealEstateOwnedMember_OtherAndFamily1To4ReceivableMember_MarketApproachValuationTechniqueMember_WeightedAverageMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseOther real estate ownedus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherRealEstateOwnedMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseOther and 1-4 familyus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_OtherAndFamily1To4ReceivableMemberus-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxisexplicitMemberfalsefalseSales comparison approachus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_MarketApproachValuationTechniqueMemberus-gaap_ValuationTechniqueAxisexplicitMemberfalsefalseAvgus-gaap_RangeAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_WeightedAverageMemberus-gaap_RangeAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Other real estate owned | Other and 1-4 family | Sales comparison approach | Avg104true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs105false 5us-gaap_FairValueInputsComparabilityAdjustmentsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse0.260.26falsefalsefalse2truetruefalse0.170.17falsefalsefalsenum:percentItemTypepurePercentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Adjustment for differences between comparable sales, type of property, current status of property (as a percent)106false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse55false truefalseD2013Q2YTD_ServicingContractsMember_FairValueInputsLevel3Member_FairValueMeasurementsNonrecurringMember_CashFlowAnalysisMemberhttp://www.sec.gov/CIK0000720002duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseNon-recurring basisus-gaap_FairValueByMeasurementFrequencyAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueMeasurementsNonrecurringMemberus-gaap_FairValueByMeasurementFrequencyAxisexplicitMemberfalsefalseLevel 3us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseMortgage servicing rightsus-gaap_FairValueByAssetClassAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_ServicingContractsMemberus-gaap_FairValueByAssetClassAxisexplicitMemberfalsefalseCash flow analysisus-gaap_ValuationTechniqueAxisxbrldihttp://xbrl.org/2006/xbrldimsfg_CashFlowAnalysisMemberus-gaap_ValuationTechniqueAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli0nanafalse0Non-recurring basis | Level 3 | Mortgage servicing rights | Cash flow analysis107true 4us-gaap_FairValueInputsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Unobservable Inputs108false 5us-gaap_FairValueInputsDiscountRateus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truetruefalse0.100.10falsefalsefalse2truetruefalse0.100.10falsefalsefalsenum:percentItemTypepureInterest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 false0Discount rate (as a percent)falseFAIR VALUE (Details 5) (USD $)ThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.mainsourcefinancial.com/role/DisclosureFairValueDetails52108