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Property, Plant and Equipment
 6 Months Ended
Jun. 30, 2025
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment PROPERTY, PLANT AND EQUIPMENT:
Property, plant and equipment consists of the following:
June 30,
2025		December 31,
2024
Plant and Equipment$4,746,089 $3,633,741 
Coal Properties and Surface Lands2,223,908 913,819 
Airshafts580,174 521,334 
Mine Development669,306 366,260 
Advance Mining Royalties337,203 328,927 
Total Property, Plant and Equipment8,556,680 5,764,081 
Less: Accumulated Depreciation, Depletion and Amortization4,081,726 3,842,382 
Total Property, Plant and Equipment - Net$4,474,954 $1,921,699 
As of June 30, 2025 and December 31, 2024, property, plant and equipment included gross assets under finance leases of $45,554 and $40,804, respectively. Accumulated amortization for finance leases was $13,743 and $16,929 at June 30, 2025 and December 31, 2024, respectively. Amortization expense for assets under finance leases approximated $2,882 and $2,525 for the three months ended June 30, 2025 and 2024, respectively, and $5,957 and $5,542 for the six months ended June 30, 2025 and 2024, respectively, and is included in Depreciation, Depletion and Amortization in the accompanying Consolidated Statements of (Loss) Income.