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PROPERTY, PLANT AND EQUIPMENT - Net Book Value of Property, Plant and Equipment (Details) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2021 | Dec. 31, 2020
Property, Plant and Equipment [Line Items] |  |
Total Property, Plant and Equipment | $ 8,983 | $ 8,985
Impairment | 0 |
Mineral rights and properties |  |
Property, Plant and Equipment [Line Items] |  |
Total Property, Plant and Equipment | 8,972 | 8,972
Other property, plant and equipment |  |
Property, Plant and Equipment [Line Items] |  |
Total Property, Plant and Equipment | 11 | 13
Alabama |  |
Property, Plant and Equipment [Line Items] |  |
Total Property, Plant and Equipment | 8,972 | 8,972
Alabama | Mineral rights and properties |  |
Property, Plant and Equipment [Line Items] |  |
Total Property, Plant and Equipment | 8,972 | 8,972
Corporate |  |
Property, Plant and Equipment [Line Items] |  |
Total Property, Plant and Equipment | 11 | 13
Corporate | Other property, plant and equipment |  |
Property, Plant and Equipment [Line Items] |  |
Total Property, Plant and Equipment | $ 11 | $ 13

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228 + Details
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- Definition 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. + References No definition available. + Details
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- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business (including discontinued operations). Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References No definition available. + Details
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- Details
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