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SUBSEQUENT EVENTS (Details) - USD ($) $ in Millions		6 Months Ended
	Jul. 06, 2021	Jun. 30, 2021
Subsequent Event
Subsidiary Percentage		100.00%
Subsequent Events | McEwen Copper Inc.
Subsequent Event
Subsidiary Percentage	100.00%
Subsequent Events | McEwen Copper Inc. | Maximum
Subsequent Event
Amount of capital sought	$ 80
Subsequent Events | Robert McEwen
Subsequent Event
Amount of capital sought	$ 40

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+ References

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- Definition

The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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