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v3.25.2

Income Taxes (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2025 Rate | Dec. 31, 2024 Rate | Dec. 31, 2023 Rate
Income Taxes - Tax Characteristics (Details) [Line Items] |  |  |
Ordinary Income | 0.00% | 24.10% | 38.00%

X
- Definition Income Taxes - Tax Characteristics (Details) [Line Items] + References No definition available. + Details
Name: | earn_IncomeTaxesTaxCharacteristicsDetailsLineItems
Namespace Prefix: | earn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The percentage of dividends which are classified as ordinary income for tax purposes. + References No definition available. + Details
Name: | earn_OrdinaryIncome
Namespace Prefix: | earn_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration