CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Operating expenses:
Exploration and development costs	$ 19,526	$ 20,637
General and administrative costs	14,472	12,673
Gain on asset sales	(9,410)	(541)
Mine site costs	9,355	10,735
Asset retirement obligation adjustments and accretion expense	7,116	(1,800)
Depreciation, amortization, and inventory adjustments	2,764	3,309
Loss from operations	(43,823)	(45,013)
Other Income (Expense) Net
Interest income	4,419	8,278
Other (loss) income, net	(1,523)	178
Interest expense	(19,969)	(18,467)
Net loss	$ (60,896)	$ (55,024)
Loss per share:
Basic (in USD per share)	$ (2.63)	$ (2.61)
Diluted (in USD per share)	$ (2.63)	$ (2.61)
Weighted average shares outstanding:
Basic (in shares)	23,176,014	21,113,516
Diluted (in shares)	23,176,014	21,113,516