Inventories (Details) - USD ($) $ in Thousands	Jun. 03, 2017	Mar. 04, 2017
Components of inventories
Raw materials	$ 25,380	$ 22,761
Work-in-process	19,514	16,154
Finished goods	31,471	29,372
Costs and earnings in excess of billings on uncompleted contracts	4,718	5,122
Total inventories	$ 81,083	$ 73,409

Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings which is expected to be collected within one year or the normal operating cycle, if longer.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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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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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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