Inventories, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Lime and limestone inventories:
Raw materials	$ 4,502	$ 4,811
Finished goods	1,852	2,070
Total	6,354	6,881
Service parts inventories	6,177	5,552
Total inventories	$ 12,531	$ 12,433

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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