The amount of current income receivable.

No definition available.

Name:	ello_CurrentIncomeReceivable
Namespace Prefix:	ello_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the denominated notional principal amount.

+ References

No definition available.

+ Details

Name:	ello_DenominatedNotionalPrincipalAmount
Namespace Prefix:	ello_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Current amounts owed from government authorities.

+ References

No definition available.

+ Details

Name:	ello_GovernmentAuthorities
Namespace Prefix:	ello_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Output percentage of financial power swap.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
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- Definition

Period of financial power swap.

+ References

No definition available.

+ Details

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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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-URIDate 2021-03-24

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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
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+ Details

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

- Definition

The amount of current trade receivables. [Refer: Trade receivables]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Balance Type:	debit
Period Type:	instant

- Definition

The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

+ References

+ Details

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

- 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.

+ Details

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- Definition

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

+ References

+ Details

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Namespace Prefix:	ifrs-full_
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Period Type:	instant

- Details

Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=ello_TalasolMember
Namespace Prefix:
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Financial Instruments (Narrative) (Details) € in Thousands, ₪ in Thousands, $ in Thousands	1 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2021 ILS (₪)	Dec. 31, 2021 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2018 EUR (€)
Disclosure of financial assets [line items]
Cash and cash equivalents			€ 41,229	$ 46,663	€ 66,845	$ 75,655	€ 44,509	€ 36,882
Derivative financial assets			1,946	2,202	1,761
Short-term restricted cash			1,000	1,132	0
Non-current restricted cash			15,630	$ 17,690	9,931
Trade receivables			598		382
Revenue receivables			3,794		3,420
Government authorities receivables			€ 1,602		€ 3,232
Denominated notional principal amount \| ₪		₪ 100,000
Talasol [Member]
Disclosure of financial assets [line items]
Output percentage of financial power swap	80.00%
Period of financial power swap	10 years