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DEBT (Details) ¥ in Millions, $ in Millions		6 Months Ended	12 Months Ended
	Jun. 25, 2024 CNY (¥)	Jun. 30, 2025 USD ($) Rate	Dec. 31, 2024	Jun. 30, 2025 CNY (¥) Rate	May 31, 2025 USD ($)
Line of Credit Facility [Line Items]
Maximum borrowing capacity after ABL adjustment		$ 125.0			$ 125.0
Remaining borrowing capacity		$ 50.6
Percentage of remaining borrowing capacity | Rate		40.50%		40.50%
Minimum availability after ABL adjustment | Rate		20.00%		20.00%
Minimum Availability, Dollar Threshold		$ 20.0
Guangzhou Tredegar Loan
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.45%
Borrowing | ¥	¥ 9.5
Interest rate		2.90%		2.90%
Mortgage contract maximum value | ¥				¥ 30.0
Revolving Credit Facility | Amended ABL Facility
Line of Credit Facility [Line Items]
Commitment fee percentage threshold		50.00%		50.00%
Property, plant, and equipment component threshold, percentage of net orderly liquidation value		60.00%
Property, plant, and equipment component threshold, percentage of borrowing base		30.00%
Amount of eligible cash, cap, percentage of borrowing base		15.00%
Revolving Credit Facility | Amended ABL Facility | Adjusted Term Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Basis spread on variable rate		1.00%
Revolving Credit Facility | Amended ABL Facility | Term Secured Overnight Financing Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate		0.10%
Initial floor percentage		0.00%
Revolving Credit Facility | Amended ABL Facility | Fixed Charge Coverage Ratio
Line of Credit Facility [Line Items]
Minimum availability before ABL adjustment		0.10		0.10
Fixed charge coverage ratio, monetary availability threshold		$ 10.0
Revolving Credit Facility | Amended ABL Facility | Base Rate
Line of Credit Facility [Line Items]
Cash Dominion Period availability		0.125		0.125
Cash dominion period, monetary availability threshold		$ 12.6
Revolving Credit Facility | Amended ABL Facility If Average Usage Is Greater Than Or Equal To 50%
Line of Credit Facility [Line Items]
Commitment fee percentage		0.25%	0.40%
Revolving Credit Facility | Amended ABL Facility If Average Usage Is Less Than 50%
Line of Credit Facility [Line Items]
Commitment fee percentage		0.375%

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