REVENUE AND COST OF SALES (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
REVENUE AND COST OF SALES
Concentrate Sales	$ 9,992	$ 9,789
Provisional Pricing Adjustments	(167)	1,261
Total Revenue	$ 9,825	$ 11,050

The income arising in the course of an entity's ordinary activities. Income is increases in assets, or decreases in liabilities, that result in increases in equity, other than those relating to contributions from holders of equity claims.

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+ Details