CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) (USD $) In Thousands, except Share data	May 29, 2011	Nov. 30, 2010
Current assets
Allowance for doubtful accounts	$ 3,815	$ 3,848
Accumulated amortization	$ 1,322	$ 1,293
Stockholders' equity
Common Stock, par value	$ 2.50	$ 2.50
Common Stock, shares authorized	24,000,000	24,000,000
Common Stock, shares outstanding	9,070,912	9,249,105
Treasury stock, shares	2,986,730	2,769,637