Inventories, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Lime and limestone inventories:
Raw materials	$ 4,097	$ 4,811
Finished goods	1,571	2,070
Total	5,668	6,881
Service parts inventories	5,678	5,552
Total inventories	$ 11,346	$ 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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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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