v3.25.1
Cover
Jun. 09, 2025
Cover [Abstract]  
Document Type 8-K
Document Period End Date Jun. 09, 2025
Entity Registrant Name Direct Digital Holdings, Inc.
Entity Incorporation, State or Country Code DE
Entity File Number 001-41261
Entity Tax Identification Number 87-2306185
Entity Address, Address Line One 1177 West Loop South
Entity Address, Address Line Two Suite 1310
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77027
City Area Code 832
Local Phone Number 402-1051
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Class A Common Stock, par value $0.001 per share
Trading Symbol DRCT
Security Exchange Name NASDAQ
Entity Emerging Growth Company true
Entity Ex Transition Period false
Amendment Flag false
Entity Central Index Key 0001880613
Current Fiscal Year End Date --12-31