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DISCONTINUED OPERATIONS (Income (Loss) from Discontinued Operations) (Details) - Electrochem Solutions, Inc - Discontinued Operations, Disposed of by Sale - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 27, 2025 | Jun. 28, 2024 | Jun. 27, 2025 | Jun. 28, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Sales | $ 0 | $ 8,739 | $ 0 | $ 16,430
Cost of sales | 0 | 6,723 | 68 | 12,847
Gross profit | 0 | 2,016 | (68) | 3,583
Selling, general and administrative expenses | 0 | 638 | 0 | 1,132
Research, development and engineering costs | 0 | 490 | 0 | 969
Restructuring and other charges | 0 | 196 | 0 | 214
Interest expense | 0 | 706 | 0 | 1,386
Gain on sale of discontinued operations | 0 | 0 | (46) | 0
Loss from discontinued operations before taxes | 0 | (14) | (22) | (118)
Income tax benefit | 0 | (53) | 0 | (74)
Income (loss) from discontinued operations, net of tax | $ 0 | $ 39 | $ (22) | $ (44)

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