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Note 6 - Inventories (Details Textual) - USD ($) $ in Millions | 11 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Nov. 23, 2021 | Dec. 31, 2022 | Dec. 31, 2021
Inventory, LIFO Reserve, Period Charge | $ 21.9 | $ 0.6 |
Inventory Difference Using FIFO Basis |  | $ 20.3 | $ 19.7

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- Definition The change in the inventory reserve representing the cumulative difference in cost between the first in, first out and the last in, first out inventory valuation methods, which change has been reflected in the statement of income during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.L) -URI https://asc.fasb.org/extlink&oid=27011343&loc=d3e99989-122729 + Details
Name: | us-gaap_InventoryLIFOReservePeriodCharge
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The difference in inventory balance if costed on a FIFO basis compared to LIFO basis. + References No definition available. + Details
Name: | zeus_InventoryDifferenceUsingFIFOBasis
Namespace Prefix: | zeus_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant