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Note 16 - Subsequent Events (Details Textual) (USD $) In Millions, unless otherwise specified | 0 Months Ended |  |
--- | --- | --- | ---
Oct. 21, 2014 | Sep. 30, 2014 | Jan. 28, 2015
Subsequent Events [Abstract] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 150.0 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity | $ 50.0 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity |
Debt Instrument, Term | 5 years |  |
Revolving Credit Facility [Member] |  |  |
Subsequent Events [Abstract] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 100.0 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |
Revolving Credit Facility [Member] | Subsequent Event [Member] |  |  |
Subsequent Events [Abstract] |  |  |
Line of Credit Facility, Increase in Maximum Borrowing Capacity |  |  | 15 eth_LineOfCreditFacilityIncreaseInMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Line of Credit Facility, Maximum Borrowing Capacity |  |  | 115.0 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Term Loan [Member] | Subsequent Event [Member] |  |  |
Subsequent Events [Abstract] |  |  |
Line of Credit Facility, Decrease in Maximum Borrowing Capacity |  |  | 15 eth_LineOfCreditFacilityDecreaseInMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = eth_TermLoanMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 35.0 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = eth_TermLoanMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

X
- Definition The amount of decrease in maximum borrowing capacity on the line of credit facility. + References No definition available. + Details
Name: | eth_LineOfCreditFacilityDecreaseInMaximumBorrowingCapacity
Namespace Prefix: | eth_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The increase in the maximum borrowing capacity under the credit facility. + References No definition available. + Details
Name: | eth_LineOfCreditFacilityIncreaseInMaximumBorrowingCapacity
Namespace Prefix: | eth_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_SubsequentEventsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CreditFacilityAxis=eth_TermLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |