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Cash and Cash Equivalents (Details) - Schedule of Cash and Cash Equivalents € in Thousands, $ in Thousands	Dec. 31, 2023 EUR (€)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 EUR (€)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 EUR (€)	Dec. 31, 2020 EUR (€)
Schedule of Cash and Cash Equivalents [Abstract]
Cash	€ 21,093		€ 14,768
On call deposits	30,034		31,690
Cash and cash equivalents	51,127	$ 56,548	46,458	$ 51,384	€ 41,229	€ 66,845
Cash and cash equivalents in the statement of cash flows	€ 51,127	$ 56,548	€ 46,458	$ 51,384	€ 41,229	€ 66,845

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- References

No definition available.

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- Definition

The amount of cash on hand and demand deposits. [Refer: Cash on hand]

+ References

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

The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

A classification of cash equivalents representing short-term deposits. [Refer: Cash equivalents]

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