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Note 2 - Revenue Recognition - Disaggregation of Revenues, Percentage (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Percentage of net sales	100.00%	100.00%	100.00%	100.00%
Specialty Metals Flat Products [Member]
Percentage of net sales	52.30%	58.60%	53.40%	56.10%
Carbon Flat Products [Member]
Percentage of net sales	32.00%	24.80%	30.30%	25.90%
Tubular and Pipe Products [Member]
Percentage of net sales	15.70%	16.60%	16.30%	18.00%
Hot Rolled Products [Member]
Percentage of net sales	30.20%	29.60%	30.70%	28.90%
Hot Rolled Products [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	30.20%	29.60%	30.70%	28.90%
Hot Rolled Products [Member] | Carbon Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Hot Rolled 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	12.80%	11.50%	13.00%	10.20%
Plate Products [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	12.80%	11.50%	13.00%	10.20%
Plate Products [Member] | Carbon Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
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	5.00%	7.10%	5.00%	6.70%
Cold Rolled Products [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	5.00%	7.10%	5.00%	6.70%
Cold Rolled Products [Member] | Carbon Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Cold Rolled 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	4.20%	8.40%	4.60%	8.60%
Coated Products [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	4.20%	8.40%	4.60%	8.60%
Coated Products [Member] | Carbon Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Coated Products [Member] | Tubular and Pipe Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Specialty [Member]
Percentage of net sales	32.00%	24.70%	30.30%	25.80%
Specialty [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	0.00%	0.00%	0.00%	0.00%
Specialty [Member] | Carbon Flat Products [Member]
Percentage of net sales	32.00%	24.70%	30.30%	25.80%
Specialty [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	15.70%	16.60%	16.30%	18.00%
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	15.70%	16.60%	16.30%	18.00%
Product and Service, Other [Member]
Percentage of net sales	0.10%	2.10%	0.10%	1.80%
Product and Service, Other [Member] | Specialty Metals Flat Products [Member]
Percentage of net sales	0.10%	2.00%	0.10%	1.70%
Product and Service, Other [Member] | Carbon Flat Products [Member]
Percentage of net sales	0.00%	0.10%	0.00%	0.10%
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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