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Basis of presentation (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Feb. 04, 2021
Basis of Presentation [Abstract] |  |  |
Common stock, par value (in dollars per share) | $ 0.0001 | $ 0.0001 |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 100.00% |  |
Cash and cash equivalents | $ 79,764,430 | $ 515,734 |
Working capital | $ 78,500,000 |  |
Advent Technologies Inc. [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Company Name | Advent Technologies Inc. |  |
Country of Incorporation | USA |  |
Statements of Operations, Start date | Jan. 01, 2021 | Jan. 01, 2020 |
Statements of Operations, End date | Dec. 31, 2021 | Dec. 31, 2020 |
Advent Technologies Inc. [Member] | Direct Ownership [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 100.00% |  |
Advent Technologies Inc. [Member] | Indirect Ownership [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 0.00% |  |
Advent Technologies S.A. [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Company Name | Advent Technologies S.A. |  |
Country of Incorporation | Greece |  |
Statements of Operations, Start date | Jan. 01, 2021 | Jan. 01, 2020 |
Statements of Operations, End date | Dec. 31, 2021 | Dec. 31, 2020 |
Advent Technologies S.A. [Member] | Direct Ownership [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 100.00% |  |
Advent Technologies S.A. [Member] | Indirect Ownership [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 0.00% |  |
Advent Technologies LLC [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Company Name | Advent Technologies LLC |  |
Country of Incorporation | USA |  |
Statements of Operations, Start date | Feb. 19, 2021 |  |
Statements of Operations, End date | Dec. 31, 2021 |  |
Advent Technologies LLC [Member] | Direct Ownership [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 100.00% |  |
Advent Technologies LLC [Member] | Indirect Ownership [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 0.00% |  |
Advent Technologies GmbH [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Company Name | Advent Technologies GmbH |  |
Country of Incorporation | Germany |  |
Statements of Operations, Start date | Sep. 01, 2021 |  |
Statements of Operations, End date | Dec. 31, 2021 |  |
Advent Technologies GmbH [Member] | Direct Ownership [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 100.00% |  |
Advent Technologies GmbH [Member] | Indirect Ownership [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 0.00% |  |
Advent Technologies A/S [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Company Name | Advent Technologies A/S |  |
Country of Incorporation | Denmark |  |
Statements of Operations, Start date | Sep. 01, 2021 |  |
Statements of Operations, End date | Dec. 31, 2021 |  |
Advent Technologies A/S [Member] | Direct Ownership [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 100.00% |  |
Advent Technologies A/S [Member] | Indirect Ownership [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 0.00% |  |
Advent Green Energy Philippines, Inc [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Company Name | Advent Green Energy Philippines, Inc |  |
Country of Incorporation | Philippines |  |
Statements of Operations, Start date | Sep. 01, 2021 |  |
Statements of Operations, End date | Dec. 31, 2021 |  |
Advent Green Energy Philippines, Inc [Member] | Direct Ownership [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 0.00% |  |
Advent Green Energy Philippines, Inc [Member] | Indirect Ownership [Member] |  |  |
Consolidation of companies [Abstract] |  |  |
Ownership Interest | 100.00% |  |
AMCI Acquisition Corp. [Member] |  |  |
Basis of Presentation [Abstract] |  |  |
Acquired percentage |  |  | 100.00%
Common stock, par value (in dollars per share) |  |  | $ 0.0001

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