XML 14 R1.htm IDEA: XBRL DOCUMENT v3.22.1
Cover Page - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Mar. 23, 2022
Jun. 30, 2021
Cover [Abstract]      
Document Type 10-K    
Document Period End Date Dec. 31, 2021    
Amendment Flag false    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Trading Symbol BCOW    
Entity Registrant Name 1895 Bancorp of Wisconsin, Inc.    
Entity Central Index Key 0001847360    
Current Fiscal Year End Date --12-31    
Entity Current Reporting Status Yes    
Entity Shell Company false    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Address, State or Province WI    
Entity Interactive Data Current Yes    
Title of 12(b) Security Common stock    
Security Exchange Name NASDAQ    
Entity Common Stock, Shares Outstanding   6,371,198  
Entity File Number 001-40609    
Entity Tax Identification Number 61-1993378    
Entity Address, Address Line One 7001 West Edgerton Avenue    
Entity Address, City or Town Greenfield    
Entity Address, Postal Zip Code 53220    
City Area Code 414    
Local Phone Number 421-8200    
Entity Incorporation, State or Country Code MD    
Document Transition Report false    
Document Annual Report true    
Entity Public Float     $ 86.4
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
ICFR Auditor Attestation Flag false    
Auditor Name Wipfli LLP    
Auditor Firm ID 344    
Auditor Location Eau Claire, Wisconsin    
Documents Incorporated by Reference
DOCUMENTS INCORPORATED BY REFERENCE:
None.