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Inventories (Tables)
3 Months Ended
Mar. 31, 2026
Inventories  
Schedule of inventories

Inventories are valued principally at the lower of cost, determined using the average cost method, or net realizable value. Costs for raw materials and finished goods include materials, labor, and production overhead. A summary of inventories is as follows (in thousands):

March 31,

December 31,

2026

2025

 

Lime and limestone inventories:

  ​ ​ ​

  ​ ​ ​

  ​ ​ ​

  ​ ​ ​

Raw materials

$

7,657

$

8,312

Finished goods

 

3,908

 

3,815

11,565

12,127

Parts inventories

 

19,042

 

18,781

$

30,607

$

30,908