Note 8 - Inventory - Inventory Components (Details) - USD ($) $ in Thousands	Apr. 04, 2021	Dec. 31, 2020
Raw materials	$ 13,799	$ 11,118
Work in process	5,459	6,210
Finished goods	1,108	762
Reserve for excess and obsolete inventory	(1,691)	(1,854)
Total	$ 18,675	$ 16,236

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 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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