v3.25.1
Document And Entity Information
May 23, 2025
Document Information [Line Items]  
Entity Registrant Name Harte Hanks, Inc.
Document Type 8-K
Document Period End Date May 23, 2025
Entity Incorporation, State or Country Code DE
Entity File Number 1-7120
Entity Tax Identification Number 74-1677284
Title of 12(b) Security Common Stock
Trading Symbol HHS
Security Exchange Name NASDAQ
Amendment Flag false
Entity Central Index Key 0000045919