SPECIAL CHARGES, NET - Special Charges (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Special Charges, Net
Special charges, net	$ 0	$ 100,000	$ 0	$ 100,000
Operating Segments | HVAC reportable segment
Special Charges, Net
Special charges, net		100,000		100,000
Operating Segments | Detection and Measurement reportable segment
Special Charges, Net
Special charges, net		$ 0		$ 0