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Note 2 - Revenue Recognition - Disaggregation of Revenues, Percentage (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Percentage of net sales	99.90%	100.00%	100.00%	100.00%
Specialty Metals Flat Products [Member]
Percentage of net sales	28.70%	26.70%	27.40%	25.40%
Carbon Flat Products [Member]
Percentage of net sales	54.60%	56.40%	56.50%	57.30%
Tubular and Pipe Products [Member]
Percentage of net sales	16.60%	16.90%	16.10%	17.30%
Specialty [Member]
Percentage of net sales	28.70%	26.70%	27.40%	25.40%
Specialty [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	28.70%	26.70%	27.40%	25.40%
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	26.30%	26.70%	28.20%	28.00%
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	26.30%	26.70%	28.20%	28.00%
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	16.60%	16.90%	16.10%	17.30%
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	16.60%	16.90%	16.10%	17.30%
Coated Products [Member]
Percentage of net sales	12.40%	12.90%	13.10%	12.00%
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	12.40%	12.90%	13.10%	12.00%
Coated Products [Member] | Tubular and Pipe Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Plate Products [Member]
Percentage of net sales	10.70%	9.60%	9.90%	11.70%
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	10.70%	9.60%	9.90%	11.70%
Plate 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%	5.60%	4.30%	4.70%
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%	5.60%	4.30%	4.70%
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	0.90%	1.60%	1.00%	0.90%
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	0.90%	1.60%	1.00%	0.90%
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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