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Industry Segments - Schedule of Segment Information (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Apr. 04, 2025 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | $ 18,652 | $ 21,468 | $ 36,486 | $ 41,764 |
Cost of goods sold - material |  | 8,814 | 11,183 | 17,177 | 21,729 |
Cost of goods sold - other |  | 4,972 | 7,472 | 11,376 | 15,836 |
Gross profit |  | 4,866 | 2,813 | 7,933 | 4,199 |
Selling, general and administrative expense |  | 6,444 | 4,604 | 11,315 | 10,484 |
Acquisition costs and other |  | 31 | 52 | 268 | 52 |
Asset impairments |  | 1,622 | 0 | 1,622 | 0 |
Gain on lease modification | $ (500) | (544) | 0 | (544) | 0 |
Interest expense, net |  | (15) | 72 | 99 | 199 |
Income taxes |  | (89) | (372) | (89) | (1,393) |
Other expense (income) |  | (136) | (93) | (285) | (212) |
Loss from continuing operations |  | (2,447) | (1,450) | (4,453) | (4,931) |
Identifiable assets |  | 122,580 |  | 122,580 |  | $ 147,250
Continuing Operations |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Identifiable assets |  | 122,580 |  | 122,580 |  | 85,226
Operating segment | Specialty Chemicals |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 18,652 | 21,468 | 36,486 | 41,764 |
Cost of goods sold - material |  | 8,814 | 11,183 | 17,177 | 21,729 |
Cost of goods sold - other |  | 5,651 | 7,367 | 11,376 | 15,566 |
Gross profit |  | 4,187 | 2,918 | 7,933 | 4,469 |
Selling, general and administrative expense |  | 2,672 | 2,489 | 5,572 | 5,479 |
Acquisition costs and other |  | 0 | 0 | 92 | 0 |
Asset impairments |  | 0 |  | 0 |  |
Gain on lease modification |  | 0 |  | 0 |  |
Interest expense, net |  | 16 | 20 | 32 | 39 |
Income taxes |  | 0 | 0 | 0 | 0 |
Other expense (income) |  | 0 | 0 | 0 | 0 |
Loss from continuing operations |  | 1,499 | 409 | 2,237 | (1,049) |
Operating segment | Specialty Chemicals | Continuing Operations |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Identifiable assets |  | 38,967 |  | 38,967 |  | 38,928
Corporate & Other |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Net sales |  | 0 | 0 | 0 | 0 |
Cost of goods sold - material |  | 0 | 0 | 0 | 0 |
Cost of goods sold - other |  | (679) | 105 | 0 | 270 |
Gross profit |  | 679 | (105) | 0 | (270) |
Selling, general and administrative expense |  | 3,772 | 2,115 | 5,743 | 5,005 |
Acquisition costs and other |  | 31 | 52 | 176 | 52 |
Asset impairments |  | 1,622 |  | 1,622 |  |
Gain on lease modification |  | (544) |  | (544) |  |
Interest expense, net |  | (31) | 52 | 67 | 160 |
Income taxes |  | (89) | (372) | (89) | (1,393) |
Other expense (income) |  | (136) | (93) | (285) | (212) |
Loss from continuing operations |  | (3,946) | $ (1,859) | (6,690) | $ (3,882) |
Corporate & Other | Continuing Operations |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |
Identifiable assets |  | $ 83,613 |  | $ 83,613 |  | $ 46,298

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