CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents (Note 4)	$ 29,226	$ 23,020
Marketable securities (Note 5)	1,001	1,743
Receivables, prepaids and other current assets (Note 6)	$ 7,411	5,578
Due from McEwen Copper Inc. (Note 14)		$ 2,376
Other Receivable, after Allowance for Credit Loss, Current, Related Party, Name [Extensible Enumeration]	McEwen Copper Inc. [Member]	McEwen Copper Inc. [Member]
Inventories (Note 7)	$ 21,934	$ 19,944
Total current assets	59,572	52,661
Mineral property interests and plant and equipment, net (Note 8)	201,205	169,950
Investment in McEwen Copper Inc. (Note 9)	303,467	326,147
Investment in Minera Santa Cruz S.A. (Note 9)	97,586	93,218
Inventories (Note 7)	2,729	10,100
Restricted cash (Note 4)	3,062	4,490
Other assets	171	673
TOTAL ASSETS	667,792	657,239
Current liabilities:
Accounts payable and accrued liabilities	28,832	22,656
Reclamation and remediation liabilities (Note 11)	2,795	3,105
Current portion of long-term debt (Note 10)	9,000
Flow-through share premium (Note 12)	6,369	1,661
Tax liabilities	3,050	1,603
Lease liabilities	890	978
Total current liabilities	50,936	30,003
Reclamation and remediation liabilities (Note 11)	41,074	39,916
Long-term debt (Note 10)	31,000	40,000
Deferred tax liabilities	36,861	40,572
Lease liabilities	1,566	488
Other liabilities	4,251	3,840
Total liabilities	165,688	154,819
Shareholders' equity:
Common shares: 52,925 as at September 30, 2024 (in thousands) (Note 12)	1,803,599	1,768,456
Accumulated deficit	(1,301,495)	(1,266,036)
Total shareholders' equity	502,104	502,420
TOTAL LIABILITIES & SHAREHOLDERS' EQUITY	$ 667,792	$ 657,239