Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Nov. 24, 2012	Nov. 26, 2011
Accounts receivable allowance for doubtful accounts (in Dollars) (in Dollars) (in Dollars) (in Dollars) (in Dollars)	$ 1,789	$ 2,092
Common stock, par value (in Dollars per share) (in Dollars per share) (in Dollars per share) (in Dollars per share) (in Dollars per share)	$ 5	$ 5
Common stock, shares authorized (in Shares) (in Shares)	50,000,000	50,000,000
Common stock, shares issued (in Shares) (in Shares)	10,836,840	11,342,332
Common stock, shares outstanding (in Shares) (in Shares)	10,836,840	11,342,332