XML 46 R36.htm IDEA: XBRL DOCUMENT
v3.20.2

Deposits (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2020
Deposits [Abstract] |
Deposits | The composition of deposits is shown below. Average balances represent year to date averages.
|  | September 30, 2020 |  |  |  |  |  | December 31, 2019 |  |  |  |
|  | Balance |  | Average Balance |  | Average Rate |  | Balance |  | Average Balance |  | Average Rate
|  | (Dollars in Thousands) |  |  |  |  |  |  |  |  |  |
Non-interest-bearing transaction accounts |  | $ | 452,268 |  |  | $ | 392,455 |  |  | — | % |  | $ | 293,573 |  |  | $ | 275,495 |  |  | — | %
Interest-bearing transaction accounts |  | 484,761 |  |  | 362,326 |  |  | 0.44 |  |  | 273,909 |  |  | 222,244 |  |  | 1.53 |
Money market accounts |  | 636,872 |  |  | 649,999 |  |  | 0.52 |  |  | 674,409 |  |  | 617,341 |  |  | 1.71 |
Certificates of deposit |  | 93,344 |  |  | 122,781 |  |  | 2.05 |  |  | 137,012 |  |  | 156,048 |  |  | 2.47 |
Wholesale deposits |  | 154,130 |  |  | 132,811 |  |  | 2.03 |  |  | 151,476 |  |  | 225,302 |  |  | 2.27 |
Total deposits |  | $ | 1,821,375 |  |  | $ | 1,660,372 |  |  | 0.62 |  |  | $ | 1,530,379 |  |  | $ | 1,496,430 |  |  | 1.53 |

X
- Definition Deposits [Table Text Block] + References No definition available. + Details
Name: | fbiz_DepositsTableTextBlock
Namespace Prefix: | fbiz_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DepositsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration