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Industry Segments - Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales | $ 41,216 | $ 46,747 | $ 50,355 | $ 54,861 | $ 54,180 | $ 64,132 | $ 72,443 | $ 71,238 | $ 193,179 | $ 261,993
Operating (loss) income |  |  |  |  |  |  |  |  | (37,430) | 14,543
Unallocated corporate expenses |  |  |  |  |  |  |  |  | 26,712 | 27,640
Acquisition costs and other |  |  |  |  |  |  |  |  | 855 | 1,104
Interest expense |  |  |  |  |  |  |  |  | 4,238 | 2,742
Other income, net |  |  |  |  |  |  |  |  | (593) | (209)
(Loss) income from continuing operations before income taxes |  |  |  |  |  |  |  |  | (41,075) | 12,010
Identifiable assets | 163,295 |  |  |  | 269,043 |  |  |  | 163,295 | 269,043
Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 193,179 | 261,993
Operating (loss) income |  |  |  |  |  |  |  |  | (37,430) | 14,543
Interest expense |  |  |  |  |  |  |  |  | 4,238 | 2,742
Other income, net |  |  |  |  |  |  |  |  | (593) | (209)
(Loss) income from continuing operations before income taxes |  |  |  |  |  |  |  |  | (41,075) | 12,010
Identifiable assets | 162,434 |  |  |  | 199,947 |  |  |  | 162,434 | 199,947
Depreciation and amortization |  |  |  |  |  |  |  |  | 7,666 | 8,274
Capital expenditures |  |  |  |  |  |  |  |  | 2,885 | 3,394
United States | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 188,241 | 253,693
Non-US | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 4,938 | 8,300
Fiberglass and steel liquid storage tanks and separation equipment |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 411
Fiberglass and steel liquid storage tanks and separation equipment | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 50 |
Fiberglass and steel liquid storage tanks and separation equipment | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 411
Stainless steel pipe and tube |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 154,040
Stainless steel pipe and tube | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 109,513 |
Stainless steel pipe and tube | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 154,040
Specialty chemicals |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 107,542
Specialty chemicals | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 83,616 |
Specialty chemicals | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  | 107,542
Operating Segments | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Operating (loss) income |  |  |  |  |  |  |  |  | (24,569) | 28,644
Corporate | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Unallocated corporate expenses |  |  |  |  |  |  |  |  | (12,018) | (12,997)
Acquisition costs and other |  |  |  |  |  |  |  |  | (843) | (1,104)
Total Corporate |  |  |  |  |  |  |  |  | (12,861) | (14,101)
Identifiable assets | 42,339 |  |  |  | 37,907 |  |  |  | 42,339 | 37,907
Depreciation and amortization |  |  |  |  |  |  |  |  | 89 | 74
Capital expenditures |  |  |  |  |  |  |  |  | 262 | 178
Tubular Products | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 109,513 | 154,040
Tubular Products | Operating Segments | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Operating (loss) income |  |  |  |  |  |  |  |  | (11,210) | 22,182
Identifiable assets | 70,548 |  |  |  | 89,050 |  |  |  | 70,548 | 89,050
Depreciation and amortization |  |  |  |  |  |  |  |  | 3,145 | 3,451
Capital expenditures |  |  |  |  |  |  |  |  | 1,104 | 2,076
Specialty chemicals | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 83,616 | 107,542
Specialty chemicals | Operating Segments | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Operating (loss) income |  |  |  |  |  |  |  |  | (12,558) | 6,971
Identifiable assets | $ 49,547 |  |  |  | $ 72,990 |  |  |  | 49,547 | 72,990
Depreciation and amortization |  |  |  |  |  |  |  |  | 4,432 | 4,749
Capital expenditures |  |  |  |  |  |  |  |  | 1,519 | 1,140
All Other | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 50 | 411
All Other | Operating Segments | Continuing Operations |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Operating (loss) income |  |  |  |  |  |  |  |  | $ (801) | $ (509)

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