Note 6 - Inventories - Schedule of Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Raw materials	$ 12,435	$ 12,267
Work in process	13,602	13,800
Finished goods	7,015	5,654
Total inventories	$ 33,052	$ 31,721

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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