Inventories (Details) - USD ($) $ in Thousands	Mar. 21, 2020	Dec. 28, 2019	Mar. 23, 2019
Inventories
Raw materials	$ 4,452	$ 3,186	$ 4,052
Work in process	2,329	2,177	2,891
Finished goods	35,454	36,906	40,801
Inventories	$ 42,235	$ 42,269	$ 47,744

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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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