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Basis of Preparation (Details) € in Thousands	Dec. 31, 2023 EUR (€)
Basis of Preparation [Abstract]
Other long-term liabilities	€ 84

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- References

No definition available.

+ Details

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Namespace Prefix:	ello_
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- Definition

The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard
-URIDate 2024-03-27

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant