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Document And Entity Information
Mar. 17, 2025
Cover [Abstract]  
Entity Registrant Name Harte Hanks, Inc.
Document Type 8-K
Document Period End Date Mar. 18, 2025
Entity Incorporation, State or Country Code DE
Entity File Number 1-7120
Entity Tax Identification Number 74-1677284
Entity Address, Address Line One 1 Executive Drive, Suite 303
Entity Address, City or Town Chelmsford
Entity Address, State or Province MA
Entity Address, Postal Zip Code 01824
City Area Code (512
Local Phone Number 434-1100
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock
Trading Symbol HHS
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Amendment Flag false
Entity Central Index Key 0000045919