Supplemental Financial Statement Information - Liabilities (Details) - USD ($) $ in Thousands	Nov. 30, 2016	Nov. 30, 2015
Deferred revenue	$ 9,526	$ 10,790
Accounts Payable and Accrued Liabilities
Accrued construction costs and retainage	1,252	1,278
Trade payables	1,060	422
Accrued salaries, wages and other compensation	725	615
Accrued interest payable	390	361
Other	713	672
Total accounts payable and accrued liabilities	4,140	3,348
Other Liabilities
Deferred compensation plan	4,334	3,981
Interest rate swap agreements	1,685
Prepaid rent from tenants	938	944
Security deposits of tenants	413	286
Conditional asset retirement obligations	288	288
Other	78	107
Total other liabilities	7,943	8,372
Other liabilities caption
Other Liabilities
Interest rate swap agreements	1,892	$ 2,766
Windsor undeveloped land sale
Deferred revenue	$ 104