Quarterly Results of Operations (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Nov. 30, 2015	Aug. 31, 2015	May. 31, 2015	Feb. 28, 2015	Nov. 30, 2014	Aug. 31, 2014	May. 31, 2014	Feb. 28, 2014	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Total revenue	$ 7,475	$ 8,184	$ 6,196	$ 6,233	$ 7,720	$ 6,099	$ 5,341	$ 5,059	$ 28,088	$ 24,219	$ 25,526
Operating income (loss)	1,413	2,641	473	(213)	2,144	716	190	(1,241)	4,314	1,809	2,436
Income (loss) from continuing operations	164	1,203	(234)	(708)	273	(198)	(225)	(1,098)	425	(1,248)	1,910
Income (loss) from discontinued operation, net of tax						26	390	(272)		144	(7,731)
Net income (loss)	$ 164	$ 1,203	$ (234)	$ (708)	$ 273	$ (172)	$ 165	$ (1,370)	$ 425	$ (1,104)	$ (5,821)
Basic:
Income (loss) from continuing operations (in dollars per share)	$ 0.03	$ 0.23	$ (0.05)	$ (0.14)	$ 0.05	$ (0.04)	$ (0.04)	$ (0.21)	$ 0.08	$ (0.24)	$ 0.37
(Loss) income from discontinued operation, net of tax (in dollars per share)						0.01	0.07	(0.06)		0.03	(1.50)
Net (loss) income per common share (in dollars per share)	0.03	0.23	(0.05)	(0.14)	0.05	(0.03)	0.03	(0.27)	0.08	(0.21)	(1.13)
Diluted:
Income (loss) from continuing operations (in dollars per share)	0.03	0.23	(0.05)	(0.14)	0.05	(0.04)	(0.04)	(0.21)	0.08	(0.24)	0.37
(Loss) income from discontinued operation, net of tax (in dollars per share)						0.01	0.07	(0.06)		0.03	(1.50)
Net (loss) income per common share (in dollars per share)	$ 0.03	$ 0.23	$ (0.05)	$ (0.14)	$ 0.05	$ (0.03)	$ 0.03	$ (0.27)	$ 0.08	$ (0.21)	$ (1.13)
Property sales revenue					$ 1,831
Simsbury, CT
Diluted:
Property sales revenue	$ 600
Griffin Center, Windsor, CT
Diluted:
Property sales revenue	$ 236