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Note 14 - Income Taxes - Expiration With Respect to Net Operating Losses (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2024 USD ($)
Domestic Tax Jurisdiction [Member]
Net deferred tax assets subject to expire	$ 657
Net operating losses subject to expire	8,907
Foreign Tax Jurisdiction [Member]
Net deferred tax assets subject to expire	180
Net operating losses subject to expire	$ 680

X

- 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

Name:	eth_DeferredIncomeTaxAssetsSubjectToExpire
Namespace Prefix:	eth_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- 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

Name:	eth_NetOperatingLossCarryforwardsSubjectToExpire
Namespace Prefix:	eth_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_DomesticCountryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_ForeignCountryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: