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SEGMENT REPORTING - Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
SEGMENT REPORTING
Consolidated total assets	$ 146,357	$ 149,831
Corporate And Other
SEGMENT REPORTING
Consolidated total assets	4,887	12,195
Battery-grade graphite business | Operating Segment
SEGMENT REPORTING
Consolidated total assets	141,470	137,636
Expenditures for battery-grade graphite business segment assets	$ 6,138	$ 58,295

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