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Note 2 - Revenue Recognition - Disaggregation of Revenues, Percentage (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Percentage of net sales	100.00%	100.00%	100.00%	100.00%
Hot Rolled Products [Member]
Percentage of net sales	28.00%	31.90%	29.70%	30.10%
Plate Products [Member]
Percentage of net sales	13.70%	11.20%	13.20%	10.60%
Cold Rolled Products [Member]
Percentage of net sales	4.50%	7.80%	4.80%	7.10%
Coated Products [Member]
Percentage of net sales	4.60%	7.80%	4.60%	8.30%
Specialty [Member]
Percentage of net sales	29.70%	23.30%	30.10%	24.00%
Tube Products [Member]
Percentage of net sales	17.30%	14.90%	16.60%	16.70%
Product and Service, Other [Member]
Percentage of net sales	2.20%	3.10%	1.00%	3.20%
Carbon Flat Products [Member]
Percentage of net sales	53.00%	60.50%	53.30%	57.90%
Carbon Flat Products [Member] | Hot Rolled Products [Member]
Percentage of net sales	28.00%	31.90%	29.70%	30.10%
Carbon Flat Products [Member] | Plate Products [Member]
Percentage of net sales	13.70%	11.20%	13.20%	10.60%
Carbon Flat Products [Member] | Cold Rolled Products [Member]
Percentage of net sales	4.50%	7.80%	4.80%	7.10%
Carbon Flat Products [Member] | Coated Products [Member]
Percentage of net sales	4.60%	7.80%	4.60%	8.30%
Carbon Flat Products [Member] | Specialty [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Carbon Flat Products [Member] | Tube Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Carbon Flat Products [Member] | Product and Service, Other [Member]
Percentage of net sales	2.20%	1.80%	1.00%	1.80%
Specialty Metals Flat Products [Member]
Percentage of net sales	29.70%	24.60%	30.10%	25.40%
Specialty Metals Flat Products [Member] | Hot Rolled Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Specialty Metals Flat Products [Member] | Plate Products [Member]
Percentage of net sales	0.00%	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%	0.00%
Specialty Metals Flat Products [Member] | Coated Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Specialty Metals Flat Products [Member] | Specialty [Member]
Percentage of net sales	29.70%	23.30%	30.10%	24.00%
Specialty Metals Flat Products [Member] | Tube Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Specialty Metals Flat Products [Member] | Product and Service, Other [Member]
Percentage of net sales	0.00%	1.30%	0.00%	1.40%
Tubular and Pipe Products [Member]
Percentage of net sales	17.30%	14.90%	16.60%	16.70%
Tubular and Pipe Products [Member] | Hot Rolled Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Tubular and Pipe Products [Member] | Plate Products [Member]
Percentage of net sales	0.00%	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%	0.00%
Tubular and Pipe Products [Member] | Coated Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Tubular and Pipe Products [Member] | Specialty [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Tubular and Pipe Products [Member] | Tube Products [Member]
Percentage of net sales	17.30%	14.90%	16.60%	16.70%
Tubular and Pipe Products [Member] | Product and Service, Other [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%

X

- Definition

Percentage of revenue, including tax collected from customer, from satisfaction of performance obligation by transferring promised good or service to customer.

+ References

No definition available.

+ Details

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X

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