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Note 4 - Goodwill and Intangible Assets (Details) (USD $) | 3 Months Ended
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Dec. 31, 2014 | Mar. 31, 2015
Note 4 - Goodwill and Intangible Assets (Details) [Line Items] |  |
Goodwill, Impairment Loss | $ 23,800,000 us-gaap_GoodwillImpairmentLoss |
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year |  | 889,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
Finite-Lived Intangible Assets, Amortization Expense, after Year Five |  | 889,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive
Finite-Lived Intangible Assets, Amortization Expense, Year Two |  | 889,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
Finite-Lived Intangible Assets, Amortization Expense, Year Three |  | 889,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
Finite-Lived Intangible Assets, Amortization Expense, Year Four |  | 889,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
Finite-Lived Intangible Assets, Amortization Expense, Year Five |  | 889,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
Minimum [Member] |  |
Note 4 - Goodwill and Intangible Assets (Details) [Line Items] |  |
Goodwill Impairment Change If 1% Change to Weighted Average Cost of Capital |  | 16,000,000 zeus_GoodwillImpairmentChangeIf1ChangeToWeightedAverageCostOfCapital / us-gaap_RangeAxis = us-gaap_MinimumMember
Goodwill Impairment Change If 1% Change to Terminal Growth Rate |  | 10,000,000 zeus_GoodwillImpairmentChangeIf1ChangeToTerminalGrowthRate / us-gaap_RangeAxis = us-gaap_MinimumMember
Maximum [Member] |  |
Note 4 - Goodwill and Intangible Assets (Details) [Line Items] |  |
Goodwill Impairment Change If 1% Change to Weighted Average Cost of Capital |  | 17,000,000 zeus_GoodwillImpairmentChangeIf1ChangeToWeightedAverageCostOfCapital / us-gaap_RangeAxis = us-gaap_MaximumMember
Goodwill Impairment Change If 1% Change to Terminal Growth Rate |  | $ 13,000,000 zeus_GoodwillImpairmentChangeIf1ChangeToTerminalGrowthRate / us-gaap_RangeAxis = us-gaap_MaximumMember

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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition The amount of goodwill impairment change if there is a 1% change to terminal growth rate. + References No definition available. + Details
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- Definition The amount of goodwill impairment change if there is a 1% change to weighted average cost of capital. + References No definition available. + Details
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