Supplemental Financial Statement Information - Liabilities (Details) - USD ($) $ in Thousands	May 31, 2016	Nov. 30, 2015
Supplemental Financial Statement Information
Deferred revenue	$ 9,835	$ 10,790
Accounts Payable and Accrued Liabilities
Accrued construction costs and retainage	3,854	1,278
Accrued payable for repurchase of Griffin common stock	1,951
Trade payables	510	422
Accrued interest payable	392	355
Accrued salaries, wages and other compensation	324	615
Other	728	678
Total	7,759	3,348
Other Liabilities
Interest rate swap liabilities	4,046	3,981
Deferred compensation plan	3,858	2,766
Prepaid rent from tenants	865	944
Security deposits	384	286
Conditional asset retirement obligations	288	288
Other	96	107
Other liabilities	$ 9,537	$ 8,372