Cover Page Cover Page
Cover Page Cover Page | Sep. 09, 2021 | Aug. 04, 2021 |
Cover [Abstract] | ||
Document Type | 8-K | |
Document Period End Date | Sep. 9, 2021 | |
Entity Registrant Name | First Business Financial Services, Inc. | |
Entity Incorporation, State or Country Code | WI | |
Entity File Number | 1-34095 | |
Entity Tax Identification Number | 39-1576570 | |
Entity Address, Address Line One | 401 Charmany Drive | |
Entity Address, City or Town | Madison | |
Entity Address, State or Province | WI | |
Entity Address, Postal Zip Code | 53719 | |
City Area Code | 608 | |
Local Phone Number | 238-8008 | |
Written Communications | false | |
Soliciting Material | false | |
Pre-commencement Tender Offer | false | |
Pre-commencement Issuer Tender Offer | false | |
Entity Emerging Growth Company | false | |
Title of 12(b) Security | Common Stock, $0.01 par value | |
Trading Symbol | FBIZ | |
Security Exchange Name | NASDAQ | |
Entity Central Index Key | 0001521951 | |
Amendment Flag | false |