XML 99 R84.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Other Assets Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Sep. 26, 2008
Variable Interest Entity [Line Items] |  |  |  |
Income (Loss) from Equity Method Investments | $ 481 | $ 774 | $ (437) |
Investment in limited partnerships | 3,215 | 3,193 |  |
Investment in Community Development Entities | 7,500 | 7,500 |  |
Sole ownership of common securities issued by Trust II | 315 |  |  |
Trust preferred securities | $ 10,000 | 10,000 |  |
Investment in CDE Tax Credit, Description, Terms on New Market Tax Credit | The investment provides federal new market tax credits over a seven-year credit allowance period. In each of the first three years, credits totaling five percent of the original investment are allowed on the credit allowance dates and for the final four years, credits totaling six percent of the original investment are allowed on the credit allowance dates. Rimrock must be invested in the qualified CDE on each of the credit allowance dates during the seven-year period to utilize the tax credits. If the CDE ceases to qualify during the seven-year period, the credits may be denied for any credit allowance date and a portion of the credits previously taken may be subject to recapture with interest. The investment in the CDE cannot be redeemed before the end of the seven-year period. |  |  |
Investment in Trust II | $ 315 | 315 |  |
Trust II |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Trust preferred securities |  |  |  | $ 10,000
Fixed rate |  |  |  | 10.50%
Aldine Capital Fund, LP |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Investment in limited partnerships | 1,000 | 1,100 |  |
Remaining commitment to provide funds to Limited Partnerships | 960 |  |  |
Aldine Capital Fund II, LP |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Investment in limited partnerships | 2,173 | $ 2,051 |  |
Remaining commitment to provide funds to Limited Partnerships | $ 2,800 |  |  |

X
- Definition Investment In Limited Partnerships + References No definition available. + Details
Name: | fbiz_InvestmentInLimitedPartnerships
Namespace Prefix: | fbiz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Investment in Trust II + References No definition available. + Details
Name: | fbiz_InvestmentInTrustIi
Namespace Prefix: | fbiz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Investment in CDE Tax Credit, Description, Terms on New Market Tax Credit + References No definition available. + Details
Name: | fbiz_InvestmentinCDETaxCreditDescriptionTermsonNewMarketTaxCredit
Namespace Prefix: | fbiz_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Investment in Community Development Entities + References No definition available. + Details
Name: | fbiz_InvestmentinCommunityDevelopmentEntities
Namespace Prefix: | fbiz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Remaining commitment to provide funds to Limited Partnerships + References No definition available. + Details
Name: | fbiz_RemainingcommitmenttoprovidefundstoLimitedPartnerships
Namespace Prefix: | fbiz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Sole ownership of common securities issued by Trust II + References No definition available. + Details
Name: | fbiz_SoleOwnershipOfCommonSecuritiesIssuedByTrustIi
Namespace Prefix: | fbiz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Trust preferred securities + References No definition available. + Details
Name: | fbiz_TrustPreferredSecurities
Namespace Prefix: | fbiz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.12) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 + Details
Name: | us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_VariableInterestEntityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=fbiz_TrustIiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=fbiz_AldineCapitalFundLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=fbiz_AldineCapitalFundIILPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |