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Note 5 - Goodwill and Intangible Assets - Goodwill, by Reportable Segment (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($)
Balance	$ 3,423
Acquisitions	0
Impairments	0
Balance	3,423
Carbon Flat Products [Member]
Balance	1,065
Acquisitions	0
Impairments	0
Balance	1,065
Specialty Metals Flat Products [Member]
Balance	2,358
Acquisitions	0
Impairments	0
Balance	2,358
Tubular and Pipe Products [Member]
Balance	0
Acquisitions	0
Impairments	0
Balance	$ 0

X

- 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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

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X

- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267

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X

- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
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-Topic 230
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-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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X

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X

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