XML 17 R1.htm IDEA: XBRL DOCUMENT v3.24.1
Document And Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Mar. 15, 2024
Jun. 30, 2023
Document Type 10-K    
Document Annual Report true    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2023    
Current Fiscal Year End Date --12-31    
Document Period End Date Dec. 31, 2023    
Document Transition Report false    
Entity File Number 0-25045    
Entity Registrant Name CF BANKSHARES INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 34-1877137    
Entity Address, Address Line One 4960 E. Dublin Granville Road    
Entity Address, Address Line Two Suite #400    
Entity Address, City or Town Columbus    
Entity Address, State or Province OH    
Entity Address, Postal Zip Code 43081    
City Area Code 614    
Local Phone Number 334-7979    
Title of 12(b) Security Common Stock, par value $.01 per share    
Trading Symbol CFBK    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 98.3
Documents Incorporated By Reference Portions of the registrant’s Proxy Statement for the Annual Meeting of Stockholders to be held on May 29, 2024, are incorporated herein by reference into Part III of this Form 10-K.    
Entity Central Index Key 0001070680    
Amendment Flag false    
Auditor Name FORVIS, LLP    
Auditor Location Indianapolis, Indiana    
Auditor Firm ID 686    
Common Stock [Member]      
Entity Common Stock, Shares Outstanding   5,080,597  
Non-Voting Common Stock [Member]      
Entity Common Stock, Shares Outstanding   1,260,700