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Note 4 - Revenue Recognition - Disaggregation of Revenues, Percentage (Details) | 12 Months Ended | 24 Months Ended
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2019 | Dec. 31, 2021
Percentage of net sales | 100.00% | 100.00% | 100.00%
Hot Rolled Products [Member] |  |  |
Percentage of net sales | 31.40% | 32.30% | 29.70%
Plate Products [Member] |  |  |
Percentage of net sales | 10.40% | 12.20% | 9.60%
Cold Rolled Products [Member] |  |  |
Percentage of net sales | 7.00% | 5.50% | 5.90%
Coated Products [Member] |  |  |
Percentage of net sales | 7.70% | 7.70% | 9.60%
Specialty [Member] |  |  |
Percentage of net sales | 25.30% | 20.90% | 23.50%
Pipe and Tube Products [Member] |  |  |
Percentage of net sales | 16.50% | 18.30% | 18.70%
Product and Service, Other [Member] |  |  |
Percentage of net sales | 1.70% | 3.10% | 3.00%
Carbon Flat Products [Member] |  |  |
Percentage of net sales | 58.10% | 58.70% | 55.90%
Carbon Flat Products [Member] | Hot Rolled Products [Member] |  |  |
Percentage of net sales | 31.40% | 32.30% | 29.70%
Carbon Flat Products [Member] | Plate Products [Member] |  |  |
Percentage of net sales | 10.40% | 12.20% | 9.60%
Carbon Flat Products [Member] | Cold Rolled Products [Member] |  |  |
Percentage of net sales | 7.00% | 5.50% | 5.90%
Carbon Flat Products [Member] | Coated Products [Member] |  |  |
Percentage of net sales | 7.70% | 7.70% | 9.60%
Carbon Flat Products [Member] | Specialty [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%
Carbon Flat Products [Member] | Pipe and Tube Products [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%
Carbon Flat Products [Member] | Product and Service, Other [Member] |  |  |
Percentage of net sales | 1.60% | 1.00% | 1.10%
Specialty Metals Flat Products [Member] |  |  |
Percentage of net sales | 25.40% | 23.00% | 25.40%
Specialty Metals Flat Products [Member] | Hot Rolled Products [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%
Specialty Metals Flat Products [Member] | Plate Products [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%
Specialty Metals Flat Products [Member] | Cold Rolled Products [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%
Specialty Metals Flat Products [Member] | Coated Products [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%
Specialty Metals Flat Products [Member] | Specialty [Member] |  |  |
Percentage of net sales | 25.30% | 20.90% | 23.50%
Specialty Metals Flat Products [Member] | Pipe and Tube Products [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%
Specialty Metals Flat Products [Member] | Product and Service, Other [Member] |  |  |
Percentage of net sales | 0.10% | 2.10% | 1.90%
Tubular and Pipe Products [Member] |  |  |
Percentage of net sales | 16.50% | 18.30% | 18.70%
Tubular and Pipe Products [Member] | Hot Rolled Products [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%
Tubular and Pipe Products [Member] | Plate Products [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%
Tubular and Pipe Products [Member] | Cold Rolled Products [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%
Tubular and Pipe Products [Member] | Coated Products [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%
Tubular and Pipe Products [Member] | Specialty [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%
Tubular and Pipe Products [Member] | Pipe and Tube Products [Member] |  |  |
Percentage of net sales | 16.50% | 18.30% | 18.70%
Tubular and Pipe Products [Member] | Product and Service, Other [Member] |  |  |
Percentage of net sales | 0.00% | 0.00% | 0.00%

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