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Note 15 - Segment Information - Segment Financial Information by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Net sales | $ 490,655 | $ 469,996 | $ 1,480,079 | $ 1,522,888
Cost of materials sold | 373,029 | 363,144 | 1,122,208 | 1,177,229
Operating expenses | 102,386 | 91,809 | 306,953 | 285,007
Depreciation | 6,237 | 5,740 | 19,278 | 17,585
Amortization | 1,739 | 1,494 | 5,210 | 4,210
Operating income | 7,264 | 7,809 | 26,430 | 38,857
Other loss, net | 14 | 26 | 62 | 66
Interest and other expense on debt | 4,144 | 3,880 | 12,282 | 12,283
Income before income taxes | 3,106 | 3,903 | 14,086 | 26,508
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] |  |  |  |
Net sales | 0 | 0 | 0 | 0
Cost of materials sold | 0 | 0 | 0 | 0
Operating expenses | 4,413 | 4,020 | 13,996 | 12,859
Depreciation | 0 | 17 | 35 | 52
Amortization | 0 | 0 | 0 | 0
Operating income | (4,413) | (4,037) | (14,031) | (12,911)
Specialty Metals Flat Products [Member] | Operating Segments [Member] |  |  |  |
Net sales | 140,870 | 125,693 | 405,114 | 386,100
Cost of materials sold | 113,982 | 103,450 | 333,543 | 315,984
Operating expenses | 19,616 | 16,302 | 54,834 | 50,478
Depreciation | 654 | 699 | 2,140 | 2,083
Amortization | 205 | 306 | 628 | 839
Operating income | 6,413 | 4,936 | 13,969 | 16,716
Carbon Flat Products [Member] | Operating Segments [Member] |  |  |  |
Net sales | 268,214 | 264,849 | 836,997 | 873,579
Cost of materials sold | 202,670 | 208,093 | 627,621 | 687,704
Operating expenses | 59,299 | 52,294 | 179,671 | 159,202
Depreciation | 3,879 | 3,366 | 11,953 | 10,277
Amortization | 1,089 | 662 | 3,257 | 1,944
Operating income | 1,277 | 434 | 14,495 | 14,452
Tubular and Pipe Products [Member] | Operating Segments [Member] |  |  |  |
Net sales | 81,571 | 79,454 | 237,968 | 263,209
Cost of materials sold | 56,377 | 51,601 | 161,044 | 173,541
Operating expenses | 19,058 | 19,193 | 58,452 | 62,468
Depreciation | 1,704 | 1,658 | 5,150 | 5,173
Amortization | 445 | 526 | 1,325 | 1,427
Operating income | $ 3,987 | $ 6,476 | $ 11,997 | $ 20,600

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