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Inventories
3 Months Ended
Mar. 31, 2014
Inventories  
Inventories

7.              Inventories

 

Inventories are valued principally at the lower of cost, determined using the average cost method, or market.  Costs for raw materials and finished goods include materials, labor, and production overhead.  Inventories consisted of the following (in thousands):

 

 

 

March 31,
2014

 

December 31,
2013

 

Lime and limestone inventories:

 

 

 

 

 

Raw materials

 

$

4,928

 

$

6,203

 

Finished goods

 

1,881

 

2,284

 

 

 

6,809

 

8,487

 

Service parts inventories

 

5,183

 

5,201

 

 

 

$

11,992

 

$

13,688