v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2025
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Schedule of cash and cash equivalents

(In thousands)

  ​ ​ ​

December 31, 2025

  ​ ​ ​

December 31, 2024

Cash

$

35,635

$

33,009

U.S. Treasury securities

 

404,712

 

Total cash & cash equivalents

$

440,347

$

33,009

Schedule of inventories

(In thousands)

  ​ ​ ​

December 31, 2025

  ​ ​ ​

December 31, 2024

Raw coal

$

31,689

$

19,709

Saleable coal

48,522

17,969

Supplies

 

6,944

 

5,680

Total inventories

$

87,155

$

43,358