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Note 7 - Impact to Consolidated Statements of Operations of Derivatives (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Interest Rate Swap [Member] | Chicago Tube and Iron Company Acquisition [Member] |  |  |
Derivatives | $ (77) | $ (100) | $ (167)
Total loss | (77) | (100) | (167)
Interest Rate Swap [Member] | A B L Credit Facility [Member] |  |  |
Derivatives | (365) | (472) | (309)
Total loss | (365) | (472) | $ (309)
Cash Flow Metals Hedges [Member] |  |  |
Derivatives | (2,400) | (312) |
Total loss | (2,400) | (312) |
Metals Swap [Member] |  |  |
Derivatives | (2,304) | 934 | $ (1,037)
Total loss | (2,304) | 934 | (1,037)
Embedded Customer Derivatives [Member] |  |  |
Derivatives | 2,304 | (934) | 1,037
Total loss | 2,304 | (934) | 1,037
Derivatives | (2,842) | (884) | (476)
Total loss | $ (2,842) | $ (884) | $ (476)

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- Definition Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 + Details
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