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v3.22.2.2

Property, Plant and Mine Development, net | 9 Months Ended
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Sep. 30, 2022
Property, Plant and Mine Development, net |
Property, Plant and Mine Development, net | 8. Property, Plant and Mine Development, net ​ At September 30, 2022 and December 31, 2021, property, plant and mine development, net consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of | ​ | As of
​ | ​ | September 30, | ​ | December 31,
​ | ​ | 2022 | ​ | 2021
​ | ​ | (in thousands)
Asset retirement costs | ​ | $ | 1,065 | ​ | $ | 1,065
Construction-in-progress (1) | ​ | ​ | 300 | ​ | ​ | 15,854
Furniture and office equipment | ​ | ​ | 1,719 | ​ | ​ | 1,685
Land | ​ | ​ | 9,033 | ​ | ​ | 9,230
Mineral interest | ​ | ​ | 79,543 | ​ | ​ | 79,964
Light vehicles and other mobile equipment | ​ | ​ | 2,328 | ​ | ​ | 2,224
Machinery and equipment | ​ | ​ | 40,119 | ​ | ​ | 33,213
Mill facilities and infrastructure | ​ | ​ | 35,917 | ​ | ​ | 24,973
Mine Development | ​ | ​ | 102,457 | ​ | ​ | 92,138
Software and licenses | ​ | ​ | 1,552 | ​ | ​ | 1,592
Subtotal | ​ | ​ | 274,033 | ​ | ​ | 261,938
Accumulated depreciation and amortization | ​ | ​ | (124,801) | ​ | ​ | (105,167)
Total | ​ | $ | 149,232 | ​ | $ | 156,771
(1) | Includes accrued capital expenditures of $0.2 million and $1.7 million at September 30, 2022 and December 31, 2021, respectively.
​ The Company recorded depreciation and amortization expense of $6.6 million and $19.8 million, respectively, for the three and nine months ended September 30, 2022 as compared to $3.5 million and $11.3 million, respectively, for the same periods ended September 30, 2021.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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