Inventories and Ore on Leach Pads (Tables)

12 Months Ended

Dec. 31, 2021

Inventory Disclosure [Abstract]

Schedule of inventory

The following table provides the components of Inventories and the estimated recoverable gold ounces therein (dollars in thousands):

	December 31, 2021			December 30, 2020
	Amount		Gold Ounces	Amount		Gold Ounces
Inventories, current:
Materials and supplies	$	4,376	—	$	6,449	—
Merrill-Crowe process plant	11		6	4,810		2,587
Carbon-in-column	3,493		2,044	299		166
Finished goods (doré and off-site carbon)	3,189		1,799	1,309		710
Inventories, non-current:
Stockpiles(1)	—		—	—		—
Total	$	11,069	3,849	$	12,867	3,463

(1)During 2021, the Company began stockpiling sulfide ore. The Company intends to use the stockpiles for testing or for future processing through a mill and subsequent oxidation process. As of December 31, 2021, stockpiles had a value of $Nil as the Company did not have established proven and probable mineral reserves.

Schedule of inventory, Ore on leach pads

The following table summarizes Ore on leach pads and the estimated recoverable gold ounces therein (dollars in thousands):

	December 31, 2021			December 31, 2020
	Amount		Gold Ounces	Amount		Gold Ounces
Ore on leach pads, current	$	10,106	7,130	$	38,041	21,869
Ore on leach pads, non-current	—		—	7,243		4,164
Total	$	10,106	7,130	$	45,284	26,033