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Note 7 - Borrowings (Details Textual) (USD $) | 0 Months Ended | 6 Months Ended | 1 Months Ended | 36 Months Ended |
--- | --- | --- | --- | --- | ---
Oct. 21, 2014 | Dec. 31, 2014 | Sep. 27, 2005 | Jun. 30, 2014 | Sep. 30, 2014
Debt Disclosure [Abstract] |  |  |  |  |
Long-term Debt, Excluding Current Maturities |  | $ 75,751,000 us-gaap_LongTermDebtNoncurrent |  | $ 130,411,000 us-gaap_LongTermDebtNoncurrent |
Debt Instrument, Term | 5 years |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 150,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity |  |  |  | 50,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Fixed Charge Coverage Ratio |  | 1.3 eth_FixedChargeCoverageRatio |  |  |
Letters of Credit Outstanding, Amount |  | 300,000 us-gaap_LettersOfCreditOutstandingAmount |  | 600,000 us-gaap_LettersOfCreditOutstandingAmount |
Line of Credit Facility, Remaining Borrowing Capacity |  | 149,700,000 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity |  | 49,400,000 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity |
Senior Notes |  |  | 200,000,000 us-gaap_SeniorNotes |  |
Senior Notes [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Long-term Debt, Excluding Current Maturities |  | 0 us-gaap_LongTermDebtNoncurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  | 129,255,000 us-gaap_LongTermDebtNoncurrent / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Debt Instrument, Interest Rate, Stated Percentage |  | 5.375%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 5.375%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember | 5.375%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Proceeds from Issuance of Senior Long-term Debt |  |  | 198,400,000 us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |  |
Repayments of Senior Debt |  |  |  | 70,600,000 us-gaap_RepaymentsOfSeniorDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_SeniorNotesMember |
Reclassification of Short-term Debt to Long-term Debt [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Long-term Debt, Excluding Current Maturities |  | 73,833,000 us-gaap_LongTermDebtNoncurrent / us-gaap_LongtermDebtTypeAxis = eth_ReclassificationOfShortTermDebtToLongTermDebtMember |  | 0 us-gaap_LongTermDebtNoncurrent / us-gaap_LongtermDebtTypeAxis = eth_ReclassificationOfShortTermDebtToLongTermDebtMember |
Term Loan [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Amortization Period | 15 years |  |  |  |
Debt Covenant, Fixed Charge Coverage Ratio, Maximum Outstanding Term Loans | 25,000,000 eth_DebtCovenantFixedChargeCoverageRatioMaximumOutstandingTermLoans / us-gaap_DebtInstrumentAxis = eth_TermLoanMember |  |  |  |
Term Loan [Member] | Average Availability Option B [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = eth_TermLoanMember / us-gaap_StatementScenarioAxis = eth_AverageAvailabilityOptionBMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |
Term Loan [Member] | Minimum Availability Needed to Avoid Re-Triggering Fixed Charge Coverage Ratio Covenant [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Covenant, Percentage of Total Revolving Credit | 15.00%eth_DebtInstrumentCovenantPercentageOfTotalRevolvingCredit / us-gaap_DebtInstrumentAxis = eth_TermLoanMember / us-gaap_StatementScenarioAxis = eth_MinimumAvailabilityNeededToAvoidReTriggeringFixedChargeCoverageRatioCovenantMember |  |  |  |
Term Loan [Member] | Minimum Fixed Charge Coverage Ratio for Covenant to Cease to Apply [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Fixed Charge Coverage Ratio | 1.25 eth_FixedChargeCoverageRatio / us-gaap_DebtInstrumentAxis = eth_TermLoanMember / us-gaap_StatementScenarioAxis = eth_MinimumFixedChargeCoverageRatioForCovenantToCeaseToApplyMember |  |  |  |
Term Loan [Member] | Minimum Fixed Charge Coverage Ratio for Year One [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Fixed Charge Coverage Ratio | 1 eth_FixedChargeCoverageRatio / us-gaap_DebtInstrumentAxis = eth_TermLoanMember / us-gaap_StatementScenarioAxis = eth_MinimumFixedChargeCoverageRatioForYearOneMember |  |  |  |
Term Loan [Member] | Minimum Fixed Charge Coverage Ratio Thereafter [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Fixed Charge Coverage Ratio | 1.1 eth_FixedChargeCoverageRatio / us-gaap_DebtInstrumentAxis = eth_TermLoanMember / us-gaap_StatementScenarioAxis = eth_MinimumFixedChargeCoverageRatioThereafterMember |  |  |  |
Term Loan [Member] | Rent Adjusted Leverage Ratio Option [Member] | Federal Funds Effective Swap Rate [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = eth_TermLoanMember / us-gaap_StatementScenarioAxis = eth_RentAdjustedLeverageRatioOptionAMember / us-gaap_VariableRateAxis = us-gaap_FederalFundsEffectiveSwapRateMember |  |  |  |
Term Loan [Member] | Maximum [Member] | Additional Margin on Variable Rate Option [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = eth_TermLoanMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_VariableRateAxis = eth_AdditionalMarginOnVariableRateOptionMember |  |  |  |
Term Loan [Member] | Maximum [Member] | Rent Adjusted Leverage Ratio Option [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = eth_TermLoanMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementScenarioAxis = eth_RentAdjustedLeverageRatioOptionAMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |
Term Loan [Member] | Minimum [Member] | Additional Margin on Variable Rate Option [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = eth_TermLoanMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_VariableRateAxis = eth_AdditionalMarginOnVariableRateOptionMember |  |  |  |
Term Loan [Member] | Minimum [Member] | Rent Adjusted Leverage Ratio Option [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = eth_TermLoanMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementScenarioAxis = eth_RentAdjustedLeverageRatioOptionAMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |
Letter of Credit [Member] | Maximum [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Line of Credit Facility, Interest Rate During Period | 1.75%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod / us-gaap_CreditFacilityAxis = us-gaap_LetterOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |
Letter of Credit [Member] | Minimum [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Line of Credit Facility, Interest Rate During Period | 1.50%us-gaap_LineOfCreditFacilityInterestRateDuringPeriod / us-gaap_CreditFacilityAxis = us-gaap_LetterOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |
Revolving Credit Facility [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 100,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |  |  |
Debt Instrument, Covenant, Percentage of Total Revolving Credit | 20.00%eth_DebtInstrumentCovenantPercentageOfTotalRevolvingCredit / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember |  |  |  |
Revolving Credit Facility [Member] | Average Availability Option B [Member] | Federal Funds Effective Swap Rate [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_StatementScenarioAxis = eth_AverageAvailabilityOptionBMember / us-gaap_VariableRateAxis = us-gaap_FederalFundsEffectiveSwapRateMember |  |  |  |
Revolving Credit Facility [Member] | Average Availability Option B [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_StatementScenarioAxis = eth_AverageAvailabilityOptionBMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |
Revolving Credit Facility [Member] | Maximum [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.25%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |
Revolving Credit Facility [Member] | Maximum [Member] | Additional Margin on Variable Rate Option [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_VariableRateAxis = eth_AdditionalMarginOnVariableRateOptionMember |  |  |  |
Revolving Credit Facility [Member] | Maximum [Member] | Average Availability Option [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementScenarioAxis = eth_AverageAvailabilityOptionAMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |
Revolving Credit Facility [Member] | Minimum [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.15%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MinimumMember |  |  |  |
Revolving Credit Facility [Member] | Minimum [Member] | Additional Margin on Variable Rate Option [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_VariableRateAxis = eth_AdditionalMarginOnVariableRateOptionMember |  |  |  |
Revolving Credit Facility [Member] | Minimum [Member] | Average Availability Option [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_CreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementScenarioAxis = eth_AverageAvailabilityOptionAMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |  |  |  |
Term Loan [Member] | Maximum [Member] |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 50,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = eth_TermLoanMember / us-gaap_RangeAxis = us-gaap_MaximumMember |  |  |  |

X
- Definition The maximum amount of outstanding term loans is one of two conditions that must me be met in order for the fixed charge coverage ratio to cease to exist. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- 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
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition The effective interest rate during the reporting period. + 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
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- 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
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + 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 210.5-02.22) -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 22 -Article 5 + Details
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- Definition The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
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