XML 78 R68.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Fair Value Disclosures (Measured on a Recurring Basis) (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Interest rate swaps |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Liabilities measured on a recurring basis, fair value | $ 873 | $ 352
Interest rate swaps | Fair Value Measurements - Level 1 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Liabilities measured on a recurring basis, fair value | 0 | 0
Interest rate swaps | Fair Value Measurements - Level 2 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Liabilities measured on a recurring basis, fair value | 873 | 352
Interest rate swaps | Fair Value Measurements - Level 3 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Liabilities measured on a recurring basis, fair value | 0 | 0
Interest rate swaps |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 873 | 352
Interest rate swaps | Fair Value Measurements - Level 1 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 0 | 0
Interest rate swaps | Fair Value Measurements - Level 2 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 873 | 352
Interest rate swaps | Fair Value Measurements - Level 3 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 0 | 0
U.S. Government agency obligations - government-sponsored enterprises |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 5,306 | 6,295
U.S. Government agency obligations - government-sponsored enterprises | Fair Value Measurements - Level 1 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 0 | 0
U.S. Government agency obligations - government-sponsored enterprises | Fair Value Measurements - Level 2 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 5,306 | 6,295
U.S. Government agency obligations - government-sponsored enterprises | Fair Value Measurements - Level 3 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 0 | 0
Municipal obligations |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 7,670 | 8,156
Municipal obligations | Fair Value Measurements - Level 1 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 0 | 0
Municipal obligations | Fair Value Measurements - Level 2 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 7,670 | 8,156
Municipal obligations | Fair Value Measurements - Level 3 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 0 | 0
Asset-backed securities |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 1,009 | 1,081
Asset-backed securities | Fair Value Measurements - Level 1 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 0 | 0
Asset-backed securities | Fair Value Measurements - Level 2 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 1,009 | 1,081
Asset-backed securities | Fair Value Measurements - Level 3 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 0 | 0
Collateralized mortgage obligations - government issued |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 25,234 | 31,213
Collateralized mortgage obligations - government issued | Fair Value Measurements - Level 1 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 0 | 0
Collateralized mortgage obligations - government issued | Fair Value Measurements - Level 2 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 25,234 | 31,213
Collateralized mortgage obligations - government issued | Fair Value Measurements - Level 3 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 0 | 0
Collateralized mortgage obligations - government-sponsored enterprises |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 97,615 | 99,148
Collateralized mortgage obligations - government-sponsored enterprises | Fair Value Measurements - Level 1 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 0 | 0
Collateralized mortgage obligations - government-sponsored enterprises | Fair Value Measurements - Level 2 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | 97,615 | 99,148
Collateralized mortgage obligations - government-sponsored enterprises | Fair Value Measurements - Level 3 Inputs |  |
Fair Value, Assets and Liabilities Measured on a Recurring Basis |  |
Assets measured on a recurring basis, fair value | $ 0 | $ 0

X
- Definition Fair Value, Assets and Liabilities Measured on a Recurring Basis [Line Items] + References No definition available. + Details
Name: | fbiz_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisLineItemsLineItems
Namespace Prefix: | fbiz_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis 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. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureRecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Aggregation of the liabilities reported on the balance sheet measured at fair value on a recurring basis by the entity. + References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueDisclosureRecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_NontaxableMunicipalBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis=us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |