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Note 6 - Disclosures to the interim condensed consolidated statements of income or loss - Planned Volume Of The Program, Weighted Average Fair Value, Total Expense And Corresponding Increase In Equity (Details) - EUR (€) € / shares in Units, € in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Disclosure of terms and conditions of share-based payment arrangement [line items]
Weighted average fair value at reporting date (EUR)	€ 2.83	€ 2.83
Increase in equity (kEUR)	€ 1,221	€ 1,165
Proportionate fair value of ESOP recognized in other general and administrative expense	61
Proportionate fair value of ESOP recognized in selling and distribution expense	20
Proportionate fair value of ESOP recognized in cost of research and development	€ 211
Employee Stock Option Program or ESOP
Disclosure of terms and conditions of share-based payment arrangement [line items]
Number of options planned to be granted	506,379
Weighted average fair value at reporting date (EUR)	€ 2.77
Expense of the period (kEUR)	€ 292,264
Increase in equity (kEUR)	€ 292,264

X

- Definition

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.

+ References

No definition available.

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- Definition

The amount of expense arising from equity-settled share-based payment transactions in which the goods or services received did not qualify for recognition as assets. [Refer: Expense from share-based payment transactions]

+ References

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- Definition

The increase (decrease) in equity resulting from share-based payment transactions. [Refer: Equity]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]]

+ References

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- Definition

Expense from equity-settled share-based payment transactions recognized in other general and administrative expenses.

+ References

No definition available.

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- Definition

Expense from equity-settled share-based payment transactions recognized in research and development expenses.

+ References

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- Definition

Expense from equity-settled share-based payment transactions recognized in selling and distribution expenses.

+ References

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- Definition

Number of share options planned to be granted under the plan.

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