XML 36 R44.htm IDEA: XBRL DOCUMENT v2.4.1.9

Securities (Unrealized Losses Held-to-Maturity) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair Value
Less than 12 months	$ 2,253us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	$ 10,035us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
12 months or longer	0us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	0us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
Total	2,253us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	10,035us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue
Unrealized Losses
Less than 12 months	8fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLoss1	85fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLoss1
12 months or longer	0fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPosition12monthsorlongerAggregateLoss1	0fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPosition12monthsorlongerAggregateLoss1
Total	8fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss1	85fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss1
U.S. Government agency obligations - government-sponsored enterprises
Fair Value
Less than 12 months	997us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_DebtSecurityAxis = us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember	1,490us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_DebtSecurityAxis = us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
12 months or longer	0us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_DebtSecurityAxis = us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember	0us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_DebtSecurityAxis = us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
Total	997us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_DebtSecurityAxis = us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember	1,490us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_DebtSecurityAxis = us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
Unrealized Losses
Less than 12 months	1fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember	17fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
12 months or longer	0fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPosition12monthsorlongerAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember	0fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPosition12monthsorlongerAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
Total	1fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember	17fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
Municipal obligations
Fair Value
Less than 12 months	1,256us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_DebtSecurityAxis = us-gaap_NontaxableMunicipalBondsMember	2,222us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_DebtSecurityAxis = us-gaap_NontaxableMunicipalBondsMember
12 months or longer	0us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_DebtSecurityAxis = us-gaap_NontaxableMunicipalBondsMember	0us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_DebtSecurityAxis = us-gaap_NontaxableMunicipalBondsMember
Total	1,256us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_DebtSecurityAxis = us-gaap_NontaxableMunicipalBondsMember	2,222us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_DebtSecurityAxis = us-gaap_NontaxableMunicipalBondsMember
Unrealized Losses
Less than 12 months	7fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_NontaxableMunicipalBondsMember	18fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_NontaxableMunicipalBondsMember
12 months or longer	0fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPosition12monthsorlongerAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_NontaxableMunicipalBondsMember	0fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPosition12monthsorlongerAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_NontaxableMunicipalBondsMember
Total	7fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_NontaxableMunicipalBondsMember	18fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_NontaxableMunicipalBondsMember
Collateralized mortgage obligations - government issued
Fair Value
Less than 12 months		3,247us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_DebtSecurityAxis = us-gaap_GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember
12 months or longer		0us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_DebtSecurityAxis = us-gaap_GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember
Total		3,247us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_DebtSecurityAxis = us-gaap_GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember
Unrealized Losses
Less than 12 months		31fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember
12 months or longer		0fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPosition12monthsorlongerAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember
Total		31fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember
Collateralized mortgage obligations - government-sponsored enterprises
Fair Value
Less than 12 months		3,076us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue / us-gaap_DebtSecurityAxis = us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
12 months or longer		0us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue / us-gaap_DebtSecurityAxis = us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Total		3,076us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue / us-gaap_DebtSecurityAxis = us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Unrealized Losses
Less than 12 months		19fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
12 months or longer		0fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPosition12monthsorlongerAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Total		$ 19fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss1 / us-gaap_DebtSecurityAxis = us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember

X

- Definition

Held-to-Maturity Securities, Continuous Unrealized Loss Position, 12 months or longer, Aggregate Loss1

+ References

No definition available.

+ Details

Name:	fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPosition12monthsorlongerAggregateLoss1
Namespace Prefix:	fbiz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Held-to-Maturity Securities, Continuous Unrealized Loss Position, Aggregate Loss1

+ References

No definition available.

+ Details

Name:	fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss1
Namespace Prefix:	fbiz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Held-to-Maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Loss1

+ References

No definition available.

+ Details

Name:	fbiz_HeldtoMaturitySecuritiesContinuousUnrealizedLossPositionLessthan12MonthsAggregateLoss1
Namespace Prefix:	fbiz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAggregateLossesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This item represents the fair value of securities categorized as held-to-maturity which are in an unrealized loss position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563

+ Details

Name:	us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValueAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This item represents the fair value of securities categorized as held-to-maturity that have been in a continuous unrealized loss position for less than twelve months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563

+ Details

Name:	us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

This item represents the fair value of securities categorized as held-to-maturity securities that have been in a continuous unrealized loss position for twelve months or longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563

+ Details

Name:	us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_DebtSecurityAxis=us-gaap_GovernmentNationalMortgageAssociationCertificatesAndObligationsGNMAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtSecurityAxis=us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtSecurityAxis=us-gaap_NontaxableMunicipalBondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtSecurityAxis=us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: