v3.25.2
Document And Entity Information
Jul. 16, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jul. 16, 2025
Entity Registrant Name Civista Bancshares, Inc.
Entity Central Index Key 0000944745
Entity Emerging Growth Company false
Entity File Number 001-36192
Entity Incorporation, State or Country Code OH
Entity Tax Identification Number 34-1558688
Entity Address, Address Line One 100 East Water Street
Entity Address, City or Town Sandusky
Entity Address, State or Province OH
Entity Address, Postal Zip Code 44870
City Area Code (419)
Local Phone Number 625 - 4121
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common shares, no par value
Trading Symbol CIVB
Security Exchange Name NASDAQ