SUBSEQUENT EVENT (Details) - McEwen Copper Inc. $ in Millions	Oct. 24, 2024 USD ($) individual shares	Sep. 30, 2024
Subsequent event
Subsidiary ownership interest (as a percent)		48.30%
Subsequent Events
Subsequent event
Shares issued | shares	1,166,666
Proceeds from issuance of common stock | $	$ 35.0
Number of individual investors | individual	2
Subsidiary ownership interest (as a percent)	46.40%
Subsequent Events | Individual investors
Subsequent event
Shares issued | shares	66,669
Proceeds from issuance of common stock | $	$ 2.0