XML 22 R29.htm IDEA: XBRL DOCUMENT
v3.19.2

Trade and Other Receivables (Narrative) (Details) | 6 Months Ended
--- | ---
Jun. 30, 2019
Trade and other receivables [abstract] |
Power financial hedge of Talasol Project | Power financial hedge in respect of approximately 80% of the output of the Talasol Project for a period of 10 years.

X
- Definition Description of power financial hedge of talasol project. + References No definition available. + Details
Name: | ello_DescriptionOfPowerFinancialHedgeOfTalasolProject
Namespace Prefix: | ello_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_TradeAndOtherReceivablesAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration