Property, Plant and Equipment, Net

9 Months Ended

Sep. 30, 2023

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment, Net

Property, Plant, and Equipment, Net

The following table provides the components of Property, plant, and equipment, net (in thousands):

	Depreciation Life or Method	September 30, 2023		December 31, 2022
Production leach pads	Units-of-production	$	11,190	$	11,190
Test leach pads	18 months	6,241		6,241
Process equipment	5 - 15 years	17,556		17,302
Buildings and leasehold improvements	10 years	9,403		9,280
Mine equipment	5 - 7 years	5,070		4,872
Vehicles	3 - 5 years	1,700		1,578
Furniture and office equipment	7 years	522		370
Mineral properties(1)	Units-of-production	50		—
Construction in progress and other		35,655		35,721
		87,387		86,554
Less, accumulated depreciation and amortization		(33,854)		(31,722)
Total		$	53,533	$	54,832

(1)During the nine months ended September 30, 2023, the Company purchased a 50% undivided interest in patented mining claims located in Pershing County, Nevada for cash consideration of $0.1 million.

During the three and nine months ended September 30, 2023, there were no events or changes in circumstances that would have required the Company to evaluate the current carrying value of its Property, plant, and equipment, net for recoverability. Depreciation expense related to Property, plant, and equipment, net was $0.7 million and $2.2 million for the three and nine months ended September 30, 2023, respectively, and $0.8 million and $2.7 million for the three and nine months ended September 30, 2022, respectively.