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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