Stockholders' Equity (Details 6) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended				12 Months Ended
	Dec. 03, 2011	Aug. 27, 2011	May 28, 2011	Feb. 26, 2011	Nov. 30, 2013	Dec. 01, 2012	Dec. 03, 2011
Investment in Centaur Media
Shares of common stock held in Centaur Media					2,452,462	5,277,150
Shares of Centaur Media common stock sold					2,824,688
Increase (decrease) in noncurrent liabilities to recognize changes in funded status of a defined benefit postretirement plan					$ (116)	$ 62	$ 37
Increase (decrease) in other comprehensive income to recognize changes in funded status of a defined benefit postretirement plan					68	(48)	(35)
Change in accumulated other comprehensive loss, net of tax
Balance at the beginning of the period					(721)
Other comprehensive income (loss) before reclassifications					478
Reclassifications included in net income					(206)	420	460
Net current period activity for other comprehensive loss					272
Balance at the end of the period					(449)	(721)
Reclassifications included in net (loss) income:
Realized gain on sale of Centaur Media (gain on sale)					(1,099)
Loss on cash flow hedges (interest expense)					810	666	730
Total reclassifications included in net income (loss)					(289)	666	730
Mark to market adjustment on Centaur Media for the increase (decrease) in fair value					481	1,111	(2,098)
Mark to market adjustment on Centaur Media for the increase (decrease) in exchange gain					(1)	110	1
Increase (decrease) in fair value adjustment on Griffin's cash flow hedges					159	(1,442)	(1,664)
Actuarial gain (loss) on postretirement benefits program					108	(77)	(56)
Total change in other comprehensive income (loss)					747	(298)	(3,817)
Total other comprehensive income (loss)					458	368	(3,087)
Reclassifications included in net income (loss):
Realized gain on sale of Centaur Media (gain on sale)					383
Loss on cash flow hedges (interest expense)					(300)	(246)	(270)
Total reclassifications included in net income (loss)					83	(246)	(270)
Mark to market adjustment on Centaur Media for the increase (decrease) in fair value					(169)	(389)	735
Mark to market adjustment on Centaur Media for the increase (decrease) in exchange gain					(1)	(38)
Increase (decrease) in fair value adjustment on Griffin's cash flow hedges					(59)	533	616
Actuarial gain (loss) on postretirement benefits program					(40)	29	21
Total change in other comprehensive income (loss)					(269)	135	1,372
Total income tax (expense) benefit included in other comprehensive (loss) income					(186)	(111)	1,102
Reclassifications included in net income (loss):
Realized gain on sale of Centaur Media (gain on sale)					(716)
Loss on cash flow hedges (interest expense)					510	420	460
Total reclassifications included in net income (loss)					(206)	420	460
Mark to market adjustment on Centaur Media for the increase (decrease) in fair value					312	722	(1,363)
Mark to market adjustment on Centaur Media for the increase (decrease) in exchange gain					(2)	72	1
Increase (decrease) in fair value adjustment on Griffin's cash flow hedges					100	(909)	(1,048)
Actuarial gain (loss) on postretirement benefits program					68	(48)	(35)
Total change in other comprehensive income (loss)					478	(163)	(2,445)
Total other comprehensive income (loss), net of tax					272	257	(1,985)
Cash Dividend
Cash dividends declared (in dollars per share)	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.20	$ 0.20	$ 0.40
Treasury Stock
Treasury stock received in connection with exercise of stock options (in shares)						1,355
Increase in treasury stock						40
Unrealized loss on cash flow hedges
Change in accumulated other comprehensive loss, net of tax
Balance at the beginning of the period					(2,011)
Other comprehensive income (loss) before reclassifications					100
Reclassifications included in net income					510
Net current period activity for other comprehensive loss					610
Balance at the end of the period					(1,401)
Reclassifications included in net income (loss):
Total reclassifications included in net income (loss)					510
Unrealized gain on investment in Centaur Media
Change in accumulated other comprehensive loss, net of tax
Balance at the beginning of the period					1,054
Other comprehensive income (loss) before reclassifications					310
Reclassifications included in net income					(716)
Net current period activity for other comprehensive loss					(406)
Balance at the end of the period					648
Reclassifications included in net income (loss):
Total reclassifications included in net income (loss)					(716)
Actuarial gain on postretirement benefit plan
Change in accumulated other comprehensive loss, net of tax
Balance at the beginning of the period					236
Other comprehensive income (loss) before reclassifications					68
Net current period activity for other comprehensive loss					68
Balance at the end of the period					$ 304