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Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Dec. 03, 2011
Nov. 27, 2010
Nov. 28, 2009
Consolidated Statements of Changes in Stockholders' Equity      
Exercise of employee stock options, tax benefit     $ 174
Dividends declared, per share (in dollars per share) $ 0.40 $ 0.40 $ 0.40