Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Nov. 30, 2013	Dec. 01, 2012	Dec. 03, 2011
Income tax benefit (expense) on continuing operations
Current state and local			$ (113)
Deferred federal	(1,076)	(172)	648
Deferred state and local	84	(98)	(252)
Total income tax (provision) benefit	(992)	(270)	283
Income Taxes, additional disclosures
Unrecognized tax benefit	1,166
Reduction in deferred tax asset related to non-qualified stock options as a result of exercises and forfeitures on those options	0	38	0
Income tax expense (benefits) from discontinued operations	(4,411)	1,077	(528)
Effect on income tax benefit for valuation allowance	93	44	23
Federal income tax expense benefit of the change in valuation allowance	33	15	8
Deferred tax (expense) benefit included in other comprehensive (loss) income
Mark to market adjustments on Centaur Media plc	213	(427)	735
Measurement of the funded status of the defined postretirement plan	(40)	29	21
Fair value adjustment of Griffin's cash flow hedges	(359)	287	346
Total income tax (expense) benefit included in other comprehensive (loss) income	(186)	(111)	1,102
Differences between income tax benefits at the United States statutory income tax rates and the actual income tax benefits on continuing operations
Tax (provision) benefit at statutory rate	(1,016)	(163)	557
State and local taxes, including valuation allowance, net of federal tax effect	55	(64)	(237)
Permanent items	(39)	(50)	(47)
Other	8	7	10
Total income tax (provision) benefit	(992)	(270)	283
Deferred tax assets:
Inventories	4,397	371
Federal net operating loss carryforwards	1,507	521
Retirement benefit plans	1,500	1,222
State net operating loss carryforwards	937	855
Cash flow hedges	821	1,180
Non-qualified stock options	733	608
Deferred revenue	485	710
Charitable contributions	243	154
Conditional asset retirement obligations	114	117
Allowance for doubtful accounts receivable	52	50
Investment in Centaur Media plc	45	310
Investment in Shemin Nurseries Holding Corp.		301
Other	372	194
Total deferred tax assets	11,206	6,593
Valuation allowance	(379)	(319)
Net deferred tax assets	10,827	6,274
Deferred tax liabilities:
Real estate assets	(3,272)	(2,211)
Deferred rent	(926)	(787)
Prepaid insurance	(180)	(147)
Property and equipment	(104)	(105)
Other	(370)	(277)
Total deferred tax liabilities	(4,852)	(3,527)
Net total deferred tax assets	5,975	2,747
Deferred income taxes current
Asset	4,508	722
Liability	(277)	(197)
Total	4,231	525
Deferred income taxes Noncurrent
Asset	6,319	5,552
Liability	(4,575)	(3,330)
Total	1,744	2,222
Deferred income taxes
Asset	10,827	6,274
Liability	(4,852)	(3,527)
Net total deferred tax assets	$ 5,975	$ 2,747