REPORTING SEGMENTS AND RELATED INFORMATION - Schedule of Revenue Components of Mineral Resources Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue from External Customer [Line Items]
Total expenses	$ 7,968	$ 11,587	$ 19,747	$ 27,395
Operating results	(1,870)	(2,318)	(1,384)	2,894
Mineral resources | Operating Segments
Revenue from External Customer [Line Items]
Revenues	1,600	4,131	8,512	16,099
Total expenses	925	2,445	4,991	9,602
Operating results	$ 675	$ 1,686	$ 3,521	$ 6,497