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Note 11 - Income Taxes - Deferred Tax Assets Expiration With Respect to Net Operating Losses (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2018 USD ($)
Domestic Tax Authority [Member]
Deferred Income Tax Assets	$ 1,340
Net Operating Loss Carryforwards	23,831
Foreign Tax Authority [Member]
Deferred Income Tax Assets	2,619
Net Operating Loss Carryforwards	$ 7,745

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: