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Note 3 - Correction of Immaterial Error in Previously Issued Financial Statements (Details) - EUR (€) € in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021 | Dec. 31, 2020
Correction of Immaterial Error in Previously Issued Financial Statements, Disclosure [Line Items] |  |  |  |  |  |
Cost of research and development | € (30,402) | € (10,432) | € (53,142) | € (12,825) |  |
Property, plant and equipment | 25,359 | € 980 | 25,359 | 980 | € 1,484 | € 2,102
IPO related cost recognized in equity |  |  | 842 | € 17 |  |
Increase (decrease) due to corrections of prior period errors |  |  |  |  |  |
Correction of Immaterial Error in Previously Issued Financial Statements, Disclosure [Line Items] |  |  |  |  |  |
Cost of research and development |  |  | (650) |  |  |
Property, plant and equipment | € 650 |  | 650 |  |  |
IPO related cost recognized in equity |  |  | € 595 |  |  |

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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_e&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of expenditure directly attributable to research or development activities, recognised in profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 126 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_126&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of cost related to the issuance of shares. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 106 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_106_d&doctype=Standard -URIDate 2021-03-24 + Details
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