XML 30 R20.htm IDEA: XBRL DOCUMENT v3.22.2
PROPERTY, PLANT AND EQUIPMENT - Net Book Value of Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Property, Plant and Equipment [Line Items]    
Total Property, Plant and Equipment $ 43,676 $ 14,479
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 5,713 4,490
Construction in progress    
Property, Plant and Equipment [Line Items]    
Total Property, Plant and Equipment 28,991 1,017
Alabama    
Property, Plant and Equipment [Line Items]    
Total Property, Plant and Equipment 43,649 14,451
Alabama | Mineral rights and properties    
Property, Plant and Equipment [Line Items]    
Total Property, Plant and Equipment 8,972 8,972
Alabama | Other property, plant and equipment    
Property, Plant and Equipment [Line Items]    
Total Property, Plant and Equipment 5,686 4,462
Alabama | Construction in progress    
Property, Plant and Equipment [Line Items]    
Total Property, Plant and Equipment 28,991 1,017
Corporate    
Property, Plant and Equipment [Line Items]    
Total Property, Plant and Equipment 27 28
Corporate | Other property, plant and equipment    
Property, Plant and Equipment [Line Items]    
Total Property, Plant and Equipment $ 27 $ 28