Inventories (Details) - USD ($) $ in Thousands	Mar. 23, 2019	Dec. 29, 2018	Mar. 24, 2018
Inventory [Line Items]
Raw materials	$ 4,052	$ 3,622	$ 3,466
Work in process	2,891	2,892	3,346
Finished goods	40,801	32,608	33,302
Inventories	$ 47,744	$ 39,122	$ 40,114

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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