Cover |
Dec. 31, 2025 |
Oct. 24, 2025 |
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| Cover [Abstract] | ||
| Document Type | 8-K | |
| Document Period End Date | Apr. 23, 2026 | |
| 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 |
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- Definition End date of current fiscal year in the format --MM-DD. No definition available.
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- Definition For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD. No definition available.
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- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'. No definition available.
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- Definition Name of the City or Town No definition available.
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- Definition Code for the postal or zip code No definition available.
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- Definition Indicate if registrant meets the emerging growth company criteria. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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