Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482925/835-30-45-3

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1D
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D

+ Details

Name:	us-gaap_DeferredFinanceCostsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A

+ Details

Name:	us-gaap_DerivativeNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Period the derivative contract is outstanding, 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_DerivativeTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The minimum commitments or obligations by the company that would require the Company to maintain certain EBITDA ratios under the revolver commitments.

+ References

No definition available.

+ Details

Name:	zeus_BalanceRequiredForComplianceWithRevolverCommitments
Namespace Prefix:	zeus_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Maximum borrowing capacity under the letters of credit without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding.

+ References

No definition available.

+ Details

Name:	zeus_LettersOfCreditMaximumBorrowingCapacity
Namespace Prefix:	zeus_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The maximum amount of additional commitments that subject to the satisfaction of certain condition.

+ References

No definition available.

+ Details

Name:	zeus_LineOfCreditFacilityAdditionalCommitmentsMaximum
Namespace Prefix:	zeus_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The minimum aggregate borrowing base that would require the Company to maintain certain EBITDA ratios under the revolver commitments.

+ References

No definition available.

+ Details

Name:	zeus_LineOfCreditFacilityCovenantTermsAggregateBorrowingBase
Namespace Prefix:	zeus_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Under the revolver commitments, the required ratio of EBITDA minus certain capital expenditures and cash taxes paid to fixed charges.

+ References

No definition available.

+ Details

Name:	zeus_LineOfCreditFacilityCovenantTermsEBITDARatio
Namespace Prefix:	zeus_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of credit facility covenant terms monetary.

+ References

No definition available.

+ Details

Name:	zeus_LineOfCreditFacilityCovenantTermsMonetary
Namespace Prefix:	zeus_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of aggregate borrowing base applied to revolver commitments in a line of credit.

+ References

No definition available.

+ Details

Name:	zeus_LineOfCreditFacilityCovenantTermsPercentageOfAggregateBorrowingBase
Namespace Prefix:	zeus_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of covenants applied to revolver commitments in a line of credit.

+ References

No definition available.

+ Details

Name:	zeus_LineOfCreditFacilityCovenantTermsPercentageOfRevolverCommitments
Namespace Prefix:	zeus_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The increase in 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

No definition available.

+ Details

Name:	zeus_LineOfCreditFacilityIncreaseInMaximumBorrowingCapacity
Namespace Prefix:	zeus_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The maximum first in, last out revolving credit facility pursuant the loan agreement.

+ References

No definition available.

+ Details

Name:	zeus_MaximumFirstInLastOutRevolvingCreditFacility
Namespace Prefix:	zeus_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=zeus_ABLCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=zeus_AssetBasedRevolvingCreditFacilityDueJune162026Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 8 - Debt (Details Textual) $ in Millions			9 Months Ended
Note 8 - Debt (Details Textual) $ in Millions	Dec. 14, 2020 USD ($)	Jan. 10, 2019 USD ($)	Sep. 30, 2023 USD ($)	Jan. 03, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jun. 16, 2021 USD ($)
Debt Issuance Costs, Net			$ 1.8		$ 1.2
Interest Rate Swap [Member]
Derivative, Term of Contract (Year)		5 years
Derivative, Notional Amount		$ 75.0
Derivative, Fixed Interest Rate		2.57%		2.42%
ABL Credit Facility [Member]
Line of Credit Facility, Increase in Maximum Borrowing Capacity				$ 150.0
Line of Credit Facility, Maximum Borrowing Capacity				625.0		$ 475.0
ABL Credit Facility [Member] \| Asset Based Revolving Credit Facility Due June 16, 2026 [Member]
Line of Credit Facility, Maximum Borrowing Capacity				$ 595.0
Letters of Credit, Maximum Borrowing Capacity						20.0
Maximum First In, Last Out Revolving Credit Facility						30.0
Line of Credit Facility, Additional Commitments, Maximum						$ 200.0
Line Of Credit Facility Covenant Terms Monetary	$ 30.0
Line of Credit Facility Covenant Terms Percentage of Revolver Commitments	10.00%
Balance Required for Compliance with Revolver Commitments			62.5
Line of Credit Facility Covenant Terms Percentage of Aggregate Borrowing Base	10.00%
Line of Credit Facility Covenant Terms Aggregate Borrowing Base			$ 57.7
Line of Credit Facility Covenant Terms EBITDA Ratio			1
Line of Credit Facility, Remaining Borrowing Capacity			$ 375.0
ABL Credit Facility [Member] \| Asset Based Revolving Credit Facility Due June 16, 2026 [Member] \| Base Rate [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate			0.00%
ABL Credit Facility [Member] \| Asset Based Revolving Credit Facility Due June 16, 2026 [Member] \| Base Rate [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate			0.25%
ABL Credit Facility [Member] \| Asset Based Revolving Credit Facility Due June 16, 2026 [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate			1.25%
ABL Credit Facility [Member] \| Asset Based Revolving Credit Facility Due June 16, 2026 [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate			2.75%