Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Nov. 29, 2014	Nov. 30, 2013
Accounts receivable allowance for doubtful accounts (in Dollars)	$ 1,249	$ 1,607
Common stock, par value (in Dollars per share)	$ 5	$ 5
Common stock, shares authorized	50,000,000us-gaap_CommonStockSharesAuthorized	50,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	10,493,393us-gaap_CommonStockSharesIssued	10,859,318us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	10,493,393us-gaap_CommonStockSharesOutstanding	10,859,318us-gaap_CommonStockSharesOutstanding

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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