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Note 2 - Revenue Recognition - Disaggregation of Revenues, Percentage (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Percentage of net sales	100.00%	100.00%	100.00%	100.00%
Specialty Metals Flat Products [Member]
Percentage of net sales	27.10%	24.90%	26.70%	24.70%
Carbon Flat Products [Member]
Percentage of net sales	56.90%	58.40%	57.50%	57.80%
Tubular and Pipe Products [Member]
Percentage of net sales	16.00%	16.70%	15.80%	17.50%
Specialty [Member]
Percentage of net sales	27.10%	24.90%	26.70%	24.70%
Specialty [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	27.10%	24.90%	26.70%	24.70%
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	32.50%	29.40%	30.60%	28.60%
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	32.50%	29.40%	30.60%	28.60%
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	16.00%	16.70%	15.80%	17.50%
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	16.00%	16.70%	15.80%	17.50%
Coated Products [Member]
Percentage of net sales	13.40%	12.10%	13.50%	11.60%
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	13.40%	12.10%	13.50%	11.60%
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	5.40%	11.90%	8.00%	12.70%
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	5.40%	11.90%	8.00%	12.70%
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	4.60%	4.30%	4.40%	4.30%
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	4.60%	4.30%	4.40%	4.30%
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	1.00%	0.70%	1.00%	0.60%
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	1.00%	0.70%	1.00%	0.60%
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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