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Inventories (Details) (USD $) In Thousands, unless otherwise specified	Nov. 29, 2014	Mar. 01, 2014
Components of inventories
Raw materials	$ 20,216	$ 17,975
Work-in-process	12,585	9,700
Finished goods	17,624	15,206
Costs and earnings in excess of billings on uncompleted contracts	4,705	5,101
Total inventories	$ 55,130us-gaap_InventoryNet	$ 47,982us-gaap_InventoryNet

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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