Note 1 - Basis of Presentation	9 Months Ended
Sep. 30, 2013
Disclosure Text Block [Abstract]
Business Description and Basis of Presentation [Text Block]	1. Basis of Presentation: The accompanying consolidated financial statements have been prepared from the financial records of Olympic Steel, Inc. and its wholly-owned subsidiaries (collectively, Olympic or the Company), without audit and reflect all normal and recurring adjustments which are, in the opinion of management, necessary to fairly state the results of the interim periods covered by this report. Year-to-date results are not necessarily indicative of 2013 annual results and these financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2012. All significant intercompany transactions and balances have been eliminated in consolidation. The Company operates in two reportable segments; flat products and tubular and pipe products. Through its flat products segment, the Company sells and distributes large volumes of processed carbon, coated, aluminum and stainless flat-rolled sheet, coil and plate products. Through its tubular and pipe products segment, the Company distributes metal tubing, pipe, bar, valve and fittings and fabricates pressure parts supplied to various industrial markets. Commencing with the first quarter of 2013, corporate expenses are reported as a separate line item in the segment reporting. Corporate expenses include the unallocated expenses related to managing the entire Company (i.e., both segments), including payroll expenses for certain personnel, expenses related to being a publicly traded entity such as board of directors expenses, audit expenses, and various other professional fees. Prior to 2013, these expenses were included in the flat products segment’s operating results. In March 2013, the Company revised the presentation of corporate expenses with a conforming change to the prior period presentation to reflect the new reporting structure. In March 2013, the Company revised the presentation of the Industrial Revenue Bond (IRB) indebtedness to current portion of long-term debt on its Consolidated Balance Sheets with a conforming change to the prior period presentation because the IRB is remarketed on an annual basis. The effect of this revision had no impact on total liabilities, but it revised the total current liabilities as of December 31, 2012 from $138.1 million to $142.4 million.

Note 1 - Basis of Presentation

9 Months Ended

Sep. 30, 2013

Business Description and Basis of Presentation [Text Block]

1. Basis of Presentation:

The accompanying consolidated financial statements have been prepared from the financial records of Olympic Steel, Inc. and its wholly-owned subsidiaries (collectively, Olympic or the Company), without audit and reflect all normal and recurring adjustments which are, in the opinion of management, necessary to fairly state the results of the interim periods covered by this report. Year-to-date results are not necessarily indicative of 2013 annual results and these financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2012. All significant intercompany transactions and balances have been eliminated in consolidation.

The Company operates in two reportable segments; flat products and tubular and pipe products. Through its flat products segment, the Company sells and distributes large volumes of processed carbon, coated, aluminum and stainless flat-rolled sheet, coil and plate products. Through its tubular and pipe products segment, the Company distributes metal tubing, pipe, bar, valve and fittings and fabricates pressure parts supplied to various industrial markets.

Commencing with the first quarter of 2013, corporate expenses are reported as a separate line item in the segment reporting. Corporate expenses include the unallocated expenses related to managing the entire Company (i.e., both segments), including payroll expenses for certain personnel, expenses related to being a publicly traded entity such as board of directors expenses, audit expenses, and various other professional fees. Prior to 2013, these expenses were included in the flat products segment’s operating results. In March 2013, the Company revised the presentation of corporate expenses with a conforming change to the prior period presentation to reflect the new reporting structure.

In March 2013, the Company revised the presentation of the Industrial Revenue Bond (IRB) indebtedness to current portion of long-term debt on its Consolidated Balance Sheets with a conforming change to the prior period presentation because the IRB is remarketed on an annual basis. The effect of this revision had no impact on total liabilities, but it revised the total current liabilities as of December 31, 2012 from $138.1 million to $142.4 million.