Income Taxes (Tables)

12 Months Ended

Dec. 31, 2024

Income Taxes

Schedule of the provision for income taxes

	For the Year Ended December 31,
	2024		2023
Current Taxes:	(in thousands)
United States	$	—	$	—
Other Countries		—		—
	$	—	$	—
Deferred Taxes:
United States	$	—	$	—
Other Countries		—		—
	$	—	$	—
Total income tax provision	$	—	$	—

Schedule of loss from operations before income taxes by country

	For the Year Ended December 31,
	2024		2023
	(in thousands)
United States	$	(4,561)	$	(6,037)
Other Countries		—		—
	$	(4,561)	$	(6,037)

Summary of reconciliation of the provision for income taxes computed at the statutory rate to the provision for income taxes

	For Year Ended December 31,
	2024		2023
	(in thousands)
Tax expense (benefit) at U.S. rate of 21%	$	(1,596)	$	(1,936)
Other adjustments:
Rate differential of other jurisdictions		(221)		(342)
Effects of foreign earnings		1,564		(2,103)
Change in valuation allowance		(12,240)		(2,737)
Provision to tax return true-ups		159		557
Exchange rate changes on deferred tax assets		6,459		(4,744)
Expired net operating losses		4,789		11,186
Other		1,086		119
Income tax provision	$	—	$	—

Schedule of components of the deferred tax assets and deferred tax liabilities

	For the year ended
	December 31,
	2024		2023
	(in thousands)
Deferred tax assets:
Net operating loss carryforwards	$	94,767	$	104,956
Capital loss carryforwards		1,571		1,702
Reclamation costs		984		1,226
Stock-based compensation		360		790
Property, plant and equipment		1,327		2,121
Other		1,946		1,639
		100,955		112,434
Less: Valuation allowance		(100,210)		(111,250)
Total deferred tax assets		745		1,184
Deferred tax liabilities:
Property, plant and equipment		(497)		(1,023)
Other		(248)		(161)
Total deferred tax liabilities		(745)		(1,184)
Net deferred tax asset (liability)	$	—	$	—

Schedule of reconciliation of the beginning and ending amount of gross unrecognized tax benefits

	The Year Ended December 31,
	2024		2023
	(in thousands)
Gross unrecognized tax benefits at beginning of period	$	—	$	—
Increases for tax positions taken during prior years		—		—
Decreases relating to settlements with taxing authorities		—		—
Reductions due to lapse of statute of limitations		—		—
Gross unrecognized tax benefits at end of period	$	—	$	—