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Note 2 - Revenue Recognition - Disaggregation of Revenues, Percentage (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Percentage of net sales	100.00%	100.00%	100.00%	100.00%
Specialty Metals Flat Products [Member]
Percentage of net sales	24.90%	25.80%	24.70%	27.40%
Carbon Flat Products [Member]
Percentage of net sales	58.40%	57.40%	57.80%	55.80%
Tubular and Pipe Products [Member]
Percentage of net sales	16.70%	16.80%	17.50%	16.80%
Specialty [Member]
Percentage of net sales	24.90%	25.80%	24.70%	27.40%
Specialty [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	24.90%	25.80%	24.70%	27.40%
Specialty [Member] | Carbon Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Specialty [Member] | Tubular and Pipe Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Hot Rolled Products [Member]
Percentage of net sales	29.40%	30.60%	28.60%	28.90%
Hot Rolled Products [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Hot Rolled Products [Member] | Carbon Flat Products [Member]
Percentage of net sales	29.40%	30.60%	28.60%	28.90%
Hot Rolled Products [Member] | Tubular and Pipe Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Tube Products [Member]
Percentage of net sales	16.70%	16.80%	17.50%	16.80%
Tube Products [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Tube Products [Member] | Carbon Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Tube Products [Member] | Tubular and Pipe Products [Member]
Percentage of net sales	16.70%	16.80%	17.50%	16.80%
Plate Products [Member]
Percentage of net sales	11.90%	12.60%	12.70%	13.10%
Plate Products [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Plate Products [Member] | Carbon Flat Products [Member]
Percentage of net sales	11.90%	12.60%	12.70%	13.10%
Plate Products [Member] | Tubular and Pipe Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Coated Products [Member]
Percentage of net sales	12.10%	5.60%	11.60%	5.00%
Coated Products [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Coated Products [Member] | Carbon Flat Products [Member]
Percentage of net sales	12.10%	5.60%	11.60%	5.00%
Coated Products [Member] | Tubular and Pipe Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Cold Rolled Products [Member]
Percentage of net sales	4.30%	4.10%	4.30%	3.80%
Cold Rolled Products [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Cold Rolled Products [Member] | Carbon Flat Products [Member]
Percentage of net sales	4.30%	4.10%	4.30%	3.80%
Cold Rolled Products [Member] | Tubular and Pipe Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Product and Service, Other [Member]
Percentage of net sales	0.70%	4.50%	0.60%	5.00%
Product and Service, Other [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Product and Service, Other [Member] | Carbon Flat Products [Member]
Percentage of net sales	0.70%	4.50%	0.60%	5.00%
Product and Service, Other [Member] | Tubular and Pipe Products [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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