The amount of interest and other costs that an entity incurs in connection with the borrowing of funds.

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The amount of outstanding funds that the entity is obligated to repay.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The interest rate on borrowings. [Refer: Borrowings]

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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No definition available.

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The fair value of financial liabilities. [Refer: At fair value [member]; Financial liabilities]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The amount of interest costs that an entity incurs in connection with the borrowing of funds that are directly attributable to the acquisition, construction or production of a qualifying asset and which form part of the cost of that asset.

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The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

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- Definition

The actualization interest rate on borrowings.

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No definition available.

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- Definition

The effective interest rate on borrowings.

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No definition available.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Notional amount per tranche

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No definition available.

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Represent the information of number of equal tranches .

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Financial debt - Credit facility agreement with the European Investment Bank (Details) € in Thousands				12 Months Ended
	Jan. 18, 2024 EUR (€)	Dec. 08, 2022 EUR (€)	May 16, 2022 EUR (€) tranche	Dec. 31, 2023 EUR (€)	Dec. 31, 2022 EUR (€)	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 EUR (€)
Financial debt
Notional amount	€ 25,000
Borrowings				€ 54,082	€ 44,390	€ 10,119	€ 10,055
Financial liabilities, at fair value				€ 92,594	63,760	€ 27,701
Finance contract with EIB
Financial debt
Notional amount			€ 50,000
Number of equal tranches \| tranche			2
Notional amount per tranche			€ 25,000
Finance contract with EIB, Tranche A
Financial debt
Interest rate		8.00%	8.00%
Maturity term after the disbursement of the tranche		4 years	4 years
Borrowings, effective interest rate				21.91%
Capitalized interest				€ 3,400	300
Finance contract with EIB, Tranche A \| Financial liabilities at amortized cost
Financial debt
Notional amount		€ 25,000
Borrowings		15,400		€ 21,400
Borrowings, effective interest rate				21.91%
Borrowing costs		€ 100
Finance contract with EIB, Tranche A \| Financial liabilities at fair value
Financial debt
Actualization rate				22.20%
Financial liabilities, at fair value				€ 18,900
Finance contract with EIB, Tranche B
Financial debt
Notional amount					€ 25,000
Interest rate			7.00%
Maturity term after the disbursement of the tranche			3 years
Finance contract with EIB, Tranche B \| Drawdown of borrowings
Financial debt
Interest rate	7.00%
Maturity term after the disbursement of the tranche	3 years