Cover |
Jul. 20, 2026 |
|---|---|
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 20, 2026 |
| Entity File Number | 001-38742 |
| Entity Registrant Name | Advent Technologies Holdings, Inc. |
| Entity Central Index Key | 0001744494 |
| Entity Tax Identification Number | 83-0982969 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 5637 La Ribera Street |
| Entity Address, Address Line Two | Suite A |
| Entity Address, City or Town | Livermore |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94550 |
| City Area Code | (925) |
| Local Phone Number | 455-9400 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
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