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Note 13 - Income Taxes - Deferred Tax Assets Expiration With Respect to Net Operating Losses (Details) $ in Thousands | 12 Months Ended
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Jun. 30, 2021 USD ($)
Domestic Tax Authority [Member] |
Various U.S. state net operating losses, expiring between 2025 and 2040 | $ 1,148
Net Operating Loss Carryforwards | 21,457
Foreign Tax Authority [Member] |
Various U.S. state net operating losses, expiring between 2025 and 2040 | 272
Net Operating Loss Carryforwards | $ 1,027

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- Definition Amounts associated with deferred tax benefits on net operating losses for foreign taxing jurisdictions that are subject to expiration + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Amounts associated with deferred tax benefits on net operating losses for foreign taxing jurisdictions that are subject to expiration. + References No definition available. + Details
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Namespace Prefix: | eth_
Data Type: | xbrli:monetaryItemType
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- Details
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Balance Type: |
Period Type: |

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- Details
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Data Type: | na
Balance Type: |
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