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Restricted Cash, Deposits and Marketable Securities (Schedule of Restricted Cash) (Details) € in Thousands, $ in Thousands	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 EUR (€)
Disclosure Of Restricted Cash Deposits And Marketable Securities [Abstract]
Marketable securities	€ 1,946		€ 1,761
Short term deposits	28,410	$ 32,154	8,113
Short-term restricted cash	1,000	$ 1,132	0
Restricted cash, long-term bank deposits	€ 15,630		€ 9,931

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- References

No definition available.

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- Definition

Restricted cash and long-term bank deposits.

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No definition available.

+ Details

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- Definition

The amount of short-term deposits held by the entity.

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No definition available.

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- Definition

The amount of current held-to-maturity investments. [Refer: Held-to-maturity investments]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2023-01-01
-Name IFRS
-Number 7
-IssueDate 2021-01-01
-Paragraph 8
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_8_b&doctype=Standard&book=b
-URIDate 2021-03-24

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- Definition

The amount of current restricted cash and cash equivalents. [Refer: Restricted cash and cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard
-URIDate 2021-03-24

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