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RECLAMATION AND REMEDIATION LIABILITIES - Reclamation and Accretion (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reclamation obligations
Reclamation adjustment reflecting updated estimates	$ 991	$ 1,045	$ (113)
Reclamation accretion	2,354	2,405	1,901
Total	3,345	3,450	$ 1,788
Gold Bar Mine
Reclamation obligations
Reclamation adjustment reflecting updated estimates	3,200	500
Tonkin Properties
Reclamation obligations
Reclamation adjustment reflecting updated estimates	1,200	100
El Gallo Project
Reclamation obligations
Reclamation adjustment reflecting updated estimates	$ 1,300
Black Fox Complex
Reclamation obligations
Reclamation adjustment reflecting updated estimates		$ 600

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- Definition

Amount of reclamation adjustments during the period.

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Amount of reclamation and remediation expenses.

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- Definition

Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 35
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=6394232&loc=d3e17558-110866

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