Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2023	Aug. 01, 2023
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2023
Current Fiscal Year End Date	--12-31
Document Period End Date	Jun. 30, 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, 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	(Voting) Common Stock, $.01 par value
Trading Symbol	CFBK
Security Exchange Name	NASDAQ
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
Entity Shell Company	false
Entity Central Index Key	0001070680
Common Stock [Member]
Entity Common Stock, Shares Outstanding		5,288,822
Non-Voting Common Stock [Member]
Entity Common Stock, Shares Outstanding		1,260,700