XML 38 R44.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Securities (Available-for-Sale Securities) (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2014 | Dec. 31, 2013
--- | --- | ---
Schedule of Available-for-sale Securities |  |
Amortized cost | $ 141,273 | $ 180,675
Gross unrealized holding gains | 1,852 | 2,339
Gross unrealized holding losses | (698) | (2,896)
Estimated fair value | 142,427 | 180,118
U.S. Government agency obligations - government-sponsored enterprises |  |
Schedule of Available-for-sale Securities |  |
Amortized cost | 7,250 | 16,380
Gross unrealized holding gains | 0 | 9
Gross unrealized holding losses | (79) | (145)
Estimated fair value | 7,171 | 16,244
Municipal obligations |  |
Schedule of Available-for-sale Securities |  |
Amortized cost |  | 16,207
Gross unrealized holding gains |  | 35
Gross unrealized holding losses |  | (753)
Estimated fair value |  | 15,489
Asset-backed securities |  |
Schedule of Available-for-sale Securities |  |
Amortized cost | 1,515 | 1,517
Gross unrealized holding gains | 0 | 0
Gross unrealized holding losses | (1) | (23)
Estimated fair value | 1,514 | 1,494
Collateralized mortgage obligations - government issued |  |
Schedule of Available-for-sale Securities |  |
Amortized cost | 74,535 | 111,010
Gross unrealized holding gains | 1,686 | 2,238
Gross unrealized holding losses | (336) | (1,279)
Estimated fair value | 75,885 | 111,969
Collateralized mortgage obligations - government-sponsored enterprises |  |
Schedule of Available-for-sale Securities |  |
Amortized cost | 57,973 | 35,561
Gross unrealized holding gains | 166 | 57
Gross unrealized holding losses | (282) | (696)
Estimated fair value | $ 57,857 | $ 34,922

X
- Definition Available-for-sale Securities, Gross Unrealized Gain1 + References No definition available. + Details
Name: | fbiz_AvailableforsaleSecuritiesGrossUnrealizedGain1
Namespace Prefix: | fbiz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Available-for-sale Securities, Gross Unrealized Loss1 + References No definition available. + Details
Name: | fbiz_AvailableforsaleSecuritiesGrossUnrealizedLoss1
Namespace Prefix: | fbiz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + 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 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 + Details
Name: | us-gaap_AvailableForSaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration