Quarterly Results of Operations (Unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Nov. 30, 2014	Nov. 30, 2013	Aug. 31, 2013	Jun. 01, 2013	Mar. 02, 2013	Dec. 01, 2012	Sep. 01, 2012	Jun. 02, 2012	Mar. 03, 2012	Nov. 30, 2014	Nov. 30, 2013	Dec. 01, 2012
Quarterly Results of Operations (Unaudited)
Total revenue		$ 7,720us-gaap_Revenues	$ 6,099us-gaap_Revenues	$ 5,341us-gaap_Revenues	$ 5,059us-gaap_Revenues	$ 8,009us-gaap_Revenues	$ 5,504us-gaap_Revenues	$ 6,388us-gaap_Revenues	$ 5,625us-gaap_Revenues	$ 24,219us-gaap_Revenues	$ 25,526us-gaap_Revenues	$ 24,215us-gaap_Revenues
Operating income (loss)		2,144us-gaap_OperatingIncomeLoss	716us-gaap_OperatingIncomeLoss	190us-gaap_OperatingIncomeLoss	(1,241)us-gaap_OperatingIncomeLoss	1,966us-gaap_OperatingIncomeLoss	269us-gaap_OperatingIncomeLoss	581us-gaap_OperatingIncomeLoss	(380)us-gaap_OperatingIncomeLoss	1,809us-gaap_OperatingIncomeLoss	2,436us-gaap_OperatingIncomeLoss	3,386us-gaap_OperatingIncomeLoss
Income (loss) from continuing operations		273	(198)	(225)	(1,098)	1,110	(490)	(394)	1,684	(1,248)	1,910	196
Income (loss) from discontinued operation			26	390	(272)	(7,200)	(439)	282	(374)	144	(7,731)	770
Net (loss) income		273	(172)	165	(1,370)	(6,090)	(929)	(112)	1,310	(1,104)	(5,821)	966
Basic:
(Loss) Income from continuing operations (in dollars per share)		$ 0.05	$ (0.04)	$ (0.04)	$ (0.21)	$ 0.22	$ (0.10)	$ (0.08)	$ 0.33	$ (0.24)	$ 0.37	$ 0.04
(Loss) income from discontinued operation, net of tax (in dollars per share)			$ 0.01	$ 0.07	$ (0.06)	$ (1.40)	$ (0.08)	$ 0.06	$ (0.08)	$ 0.03	$ (1.50)	$ 0.15
Basic net (loss) income per common share (in dollars per share)		$ 0.05us-gaap_EarningsPerShareBasic	$ (0.03)us-gaap_EarningsPerShareBasic	$ 0.03us-gaap_EarningsPerShareBasic	$ (0.27)us-gaap_EarningsPerShareBasic	$ (1.18)us-gaap_EarningsPerShareBasic	$ (0.18)us-gaap_EarningsPerShareBasic	$ (0.02)us-gaap_EarningsPerShareBasic	$ 0.25us-gaap_EarningsPerShareBasic	$ (0.21)us-gaap_EarningsPerShareBasic	$ (1.13)us-gaap_EarningsPerShareBasic	$ 0.19us-gaap_EarningsPerShareBasic
Diluted:
(Loss) income from continuing operations (in dollars per share)		$ 0.05	$ (0.04)	$ (0.04)	$ (0.21)	$ 0.22	$ (0.10)	$ (0.08)	$ 0.33	$ (0.24)	$ 0.37	$ 0.04
(Loss) income from discontinued operation, net of tax (in dollars per share)			$ 0.01	$ 0.07	$ (0.06)	$ (1.40)	$ (0.08)	$ 0.06	$ (0.08)	$ 0.03	$ (1.50)	$ 0.15
Diluted net (loss) income per common share (in dollars per share)		$ 0.05us-gaap_EarningsPerShareDiluted	$ (0.03)us-gaap_EarningsPerShareDiluted	$ 0.03us-gaap_EarningsPerShareDiluted	$ (0.27)us-gaap_EarningsPerShareDiluted	$ (1.18)us-gaap_EarningsPerShareDiluted	$ (0.18)us-gaap_EarningsPerShareDiluted	$ (0.02)us-gaap_EarningsPerShareDiluted	$ 0.25us-gaap_EarningsPerShareDiluted	$ (0.21)us-gaap_EarningsPerShareDiluted	$ (1.13)us-gaap_EarningsPerShareDiluted	$ 0.19us-gaap_EarningsPerShareDiluted
Property sales revenue from the Windsor Land Sale	$ 1,831us-gaap_LandSales	$ 2,668us-gaap_LandSales

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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