Note 4 - Inventories - Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Finished goods	$ 7,234		$ 10,792
Raw materials	2,684		3,287
Work-in-process	2,984		759
Inventory reserves	(996)		(946)
Total inventories	$ 11,906	$ 12,828	$ 13,892

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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