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DEBT (Details) - USD ($)					1 Months Ended	3 Months Ended			6 Months Ended	9 Months Ended
	Jun. 25, 2020	May 23, 2019	Mar. 29, 2019	Aug. 10, 2018	Mar. 31, 2021	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2020	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
LONG-TERM DEBT
Long-term debt from related party										$ 23,997,000		$ 19,758,000
Shares issued as bonus interest		1,935,484	14,193,548
Stock issued during the period		$ 2,600,000	$ 20,300,000
Reduction of minimum working capital covenant									$ 10,000,000.0
Gold Bar mine | Construction in Process
LONG-TERM DEBT
Interest costs capitalized											$ 600,000
Affiliate of Robert McEwen
LONG-TERM DEBT
Shares issued as bonus interest										1,045,850
Stock issued during the period										$ 900,000
Term Loan | Robert McEwen
LONG-TERM DEBT
Face amount				$ 50,000,000.0
Term of debt instrument				3 years
Long-term debt from related party				$ 25,000,000.0
Stated interest rate (as a percent)				9.75%
Amended loan agreement
LONG-TERM DEBT
Face amount	$ 50,000,000
Principal repayments	$ 2,000,000.0
Term loan retirement period	12 months
Final payment	$ 26,000,000.0
Extension term for repayment of debt	2 years
Shares issued as bonus interest	2,091,700
Stock issued during the period	$ 1,875,000
Reduction of minimum working capital covenant					$ 2,500,000				$ 10,000,000.0
Increase in working capital covenant						$ 10,000,000	$ 7,000,000.0	$ 5,000,000.0

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