INVENTORIES (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Inventories
Material on leach pads	$ 7,990		$ 4,660
In-process inventory	3,116		3,049
Stockpiles	8,123		5,105
Precious metals	1,624		1,819
Materials and supplies	6,247		3,702
Inventories	27,100		18,335
Less long-term portion	(8,339)		(2,543)
Current portion	18,761		$ 15,792
Cost Of Sales [Member]
Inventories
Inventory write-down	5,600	$ 2,900
Depreciation and depletion
Inventories
Inventory write-down	300	100
Black Fox Complex
Inventories
Current portion	1,600
Gold Bar mine
Inventories
Current portion		2,200
El Gallo Project
Inventories
Current portion	$ 4,300	$ 800

Represents the carrying amount, net of reserves and adjustments, as of the balance sheet date, of ore on leach pads.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date, of ore stockpiled.

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Represents the carrying amount, net of reserves and adjustments, as of the balance sheet date, of precious metals.

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Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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