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v3.25.1

Current Maturities and Short-Term Bank Loans (Details) | 12 Months Ended
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Dec. 31, 2024
Current Maturities and Short-Term Bank Loans [Abstract] |
Ownership percentage by minority owners | 49.00%

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- References No definition available. + Details
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Namespace Prefix: | ello_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of ownership interest held by minority owners in subsidiary entity. + References No definition available. + Details
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Namespace Prefix: | ello_
Data Type: | dtr:percentItemType
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