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Note 15 - Segment Reporting Information by Capital Expenditures (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Specialty Metal Flat Products [Member] |  |  |
Capital expenditures |  |  |
Capital expenditures | $ 4,295,000 | $ 4,540,000 | $ 3,794,000
Goodwill |  |  |
Goodwill | 500,000 | 500,000 |
Assets |  |  |
Assets | 329,885,000 | 496,253,000 |
Tubular And Pipe Products [Member] |  |  |
Capital expenditures |  |  |
Capital expenditures | $ 3,022,000 | 3,273,000 | 11,616,000
Goodwill |  |  |
Goodwill |  | 16,451,000 | 40,287,000
Assets |  |  |
Assets | $ 183,129,000 | 203,937,000 |
Corporate Segment [Member] |  |  |
Capital expenditures |  |  |
Capital expenditures |  | 21,000 | 688,000
Assets |  |  |
Assets | 456,000 | 558,000 |
Capital expenditures | $ 7,317,000 | 7,834,000 | 16,098,000
Goodwill |  | 16,951,000 | $ 40,787,000
Assets | $ 513,470,000 | $ 700,748,000 |

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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