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Document and Entity Information
Sep. 16, 2024
Cover [Abstract]  
Document Type 8-K
Document Period End Date Sep. 16, 2024
Entity Registrant Name Hackett Group, Inc.
Entity Incorporation State Country Code FL
Entity File Number 333-48123
Entity Tax Identification Number 65-0750100
Entity Address Address Line 1 1001 Brickell Bay Drive
Entity Address Address Line 2 Suite 3000
Entity Address City Or Town Miami
Entity Address State Or Province FL
Entity Address Postal Zip Code 33131
City Area Code 305
Local Phone Number 375-8005
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, par value $.001 per share
Trading Symbol HCKT
Security Exchange Name NASDAQ
Entity Emerging Growth Company false
Entity Central Index Key 0001057379
Amendment Flag false