4. Inventories, net (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Inventories Net Details
Finished goods	$ 2,201	$ 2,825
Work in process	6,408	7,111
Raw materials	4,172	4,422
Total Inventory	$ 12,781	$ 14,358

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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