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PROPERTY, PLANT AND EQUIPMENT AND MINERAL PROPERTIES Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Cost	$ 45,836	$ 57,915
Accumulated Depreciation	(33,174)	(35,932)
Net Book Value	12,662	21,983
Nichols Ranch
Property, Plant and Equipment [Line Items]
Cost	29,210	29,210
Accumulated Depreciation	(20,221)	(18,185)
Net Book Value	8,989	11,025
Alta Mesa (1)
Property, Plant and Equipment [Line Items]
Cost	0	13,626
Accumulated Depreciation	0	(4,996)
Net Book Value	0	8,630
Property, plant and equipment, held-for-sale	8,210
Equipment and other
Property, Plant and Equipment [Line Items]
Cost	16,626	15,079
Accumulated Depreciation	(12,953)	(12,751)
Net Book Value	$ 3,673	$ 2,328

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