Incentive Plans and Stock-Based Compensation (Details 4) (Restricted Stock Units (RSUs) [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Aug. 30, 2014	Aug. 31, 2013	Aug. 30, 2014	Aug. 31, 2013
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	$ 330	$ 209	$ 1,072	$ 678
Deferred tax benefits	(118)	(75)	(382)	(242)
Excess tax (expense) benefits associated with tax deductions (under) over the amount of compensation expense recognized in the consolidated condensed financial statements	0	(74)	101	1,280
Fair value of restricted stock unit awards on date of grant	0	0	1,524	1,068
Fair value of restricted stock unit awards vested	$ 0	$ 0	$ 765	$ 621