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Earnings Per Share (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Weighted average number of ordinary shares options and warrants	$ 794	$ 779	$ 762

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- Definition

Weighted average number of ordinary shares options.

+ References

No definition available.

+ Details

Name:	ello_weightedAverageNumberOfOrdinarySharesOptions
Namespace Prefix:	ello_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- References

No definition available.

+ Details

Name:	ifrs-full_EarningsPerShareAbstract
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration