Document and Entity Information
Jan. 26, 2022
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jan. 26, 2022
Entity Registrant Name CSB BANCORP INC /OH
Entity Central Index Key 0000880417
Entity Emerging Growth Company false
Entity File Number 0-21714
Entity Incorporation, State or Country Code OH
Entity Tax Identification Number 34-1687530
Entity Address, Address Line One 91 North Clay Street
Entity Address, Address Line Two P.O. Box 232
Entity Address, City or Town Millersburg
Entity Address, State or Province OH
Entity Address, Postal Zip Code 44654
City Area Code 330
Local Phone Number 674-9015
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Security 12b Title Common Stock, par value $6.25 per share
Trading Symbol CSBB
Security Exchange Name NONE