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Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
LIFO debit	$ 3,457zeus_LIFODebit	$ 3,207zeus_LIFODebit

X

- Definition

A debit applied to the carrying amount of inventory on the current periods balance sheet to adjust for LIFO.

+ References

No definition available.

+ Details

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