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Inventories (Details) (USD $) In Thousands	Aug. 28, 2011	Nov. 30, 2010
Inventories [Line Items]
Finished products	$ 36,517	$ 35,332
Materials and supplies	29,435	25,053
Products in process	7,780	8,996
Inventory, Net	$ 73,732	$ 69,381

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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