ASSET RETIREMENT OBLIGATIONS - Reclamation and Accretion (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Reclamation obligations
Reclamation adjustment reflecting updated estimates	$ 986		$ 986	$ 425
Reclamation accretion	520	$ 505	1,047	991
Total	$ 1,506	$ 505	$ 2,033	$ 1,416

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.

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Balance Type:	debit
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