4. Inventories, net (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Inventories Net Details Abstract
Finished goods	$ 2,137	$ 2,825
Work in process	4,432	7,111
Raw materials	4,119	4,422
Total Inventory	$ 10,688	$ 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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