UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenues – Note 13	$ 0	$ 9,166
Cost of sales:
Production costs	0	9,583
Depreciation and amortization – Note 2	0	920
Mine site period costs – Note 2	0	6,469
Total cost of sales	0	16,972
Operating expenses:
Mine site period costs – Note 2	3,809	0
Projects, exploration, and development	3,481	1,038
General and administrative	3,339	3,072
Depreciation and amortization – Note 2	718	0
Accretion – Note 10	186	102
Loss from operations	(11,533)	(12,018)
Other (expense) income:
Interest expense – Note 8	(4,436)	(5,346)
Interest income	1,938	0
Fair value adjustment to warrants – Notes 11 and 18	122	(5,321)
Gain on sale of equipment and supplies inventories	0	625
Net loss	$ (13,909)	$ (22,060)
Loss per share:
Basic (in dollars per share)	$ (0.07)	$ (0.27)
Diluted (in dollars per share)	$ (0.07)	$ (0.27)
Weighted average shares outstanding:
Basic (in shares)	200,270,659	81,201,453
Diluted (in shares)	200,270,659	81,201,453