Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
RE Carbonate	$ 2,122	$ 1,385	$ 0
Revenues, Vanadium Concentrates	8,778	74	0
Alternate Feed Materials processing and other	1,615	1,725	1,658
Total revenues	12,515	3,184	1,658
Cost of Revenue, Rare Earth Concentrates	1,317	1,235	0
Cost of Revenue, Applicable To Vanadium Concentrates	3,769	48	0
Underutilized capacity production costs applicable to RE Carbonate	2,758	531	0
Total costs and expenses applicable to revenues	7,844	1,814	0
Impairment of inventories	0	0	1,644
Exploration, development, permitting and land holding	9,346	10,750	4,333
Standby costs	13,221	9,462	4,015
Accretion of asset retirement obligation	1,556	1,284	1,911
Selling, General and Administrative Expense	25,486	15,299	14,382
Total operating loss	(44,938)	(35,425)	(24,627)
Gain on disposal of non-core assets	366	35,733	0
Other income (loss) (Note 13)	(15,372)	1,140	(3,245)
Total other income (loss)	(15,006)	36,873	(3,245)
Net income (loss)	(59,944)	1,448	(27,872)
Items that may be reclassified in the future to profit and loss
Foreign currency translation adjustment	(3,889)	(365)	(681)
Other comprehensive loss	(3,889)	(365)	(681)
Comprehensive income (loss)	$ (63,833)	$ 1,083	$ (28,553)
Basic Net (loss) income per share (in dollars per share)	$ (0.38)	$ 0.01	$ (0.23)
Net income (loss) attributable to:
Owners of the Company	$ (59,849)	$ 1,541	$ (27,776)
Non-controlling interests	(95)	(93)	(96)
Net income (loss)	(59,944)	1,448	(27,872)
Comprehensive income (loss) attributable to:
Owners of the Company	(63,738)	1,176	(28,457)
Non-controlling interests	(95)	(93)	(96)
Comprehensive income (loss)	$ (63,833)	$ 1,083	$ (28,553)
Diluted Net (loss) income per share (in dollars per share)	$ (0.38)	$ 0.01	$ (0.23)