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Note 10 - Inventory - Inventory Components (Details) - USD ($) $ in Thousands	Apr. 01, 2018	Jan. 01, 2018	Dec. 31, 2017
Raw materials	$ 9,633		$ 10,011
Work in process	6,509		7,150
Finished goods	1,563		1,645
Reserve for excess and obsolete inventory	(1,126)		(1,165)
Total	$ 16,579	$ 16,986	$ 17,641

X

- Definition

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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- Definition

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 of valuation reserve for inventory.

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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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