Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Aug. 31, 2017	Aug. 31, 2016
Operating activities:
Net income (loss)	$ 5,117	$ (763)
Adjustments to reconcile net loss to net cash provided by operating activities:
Gain on sales of properties	(10,035)	(280)
Depreciation and amortization	7,373	6,540
Deferred income taxes	2,806	(154)
Gain on sale of common stock of Centaur Media plc	(275)
Amortization of debt issuance costs	262	222
Stock-based compensation expense	260	185
Amortization of terminated swap agreement	40
Gain on sale of assets		(122)
Changes in assets and liabilities:
Other assets	(3,235)	(3,065)
Accounts payable and accrued liabilities	(462)	346
Deferred revenue	2,880	301
Other liabilities	974	337
Net cash provided by operating activities	5,705	3,547
Investing activities:
Acquisition of building	(18,440)
Proceeds from sales of properties, net of expenses	12,119
Additions to real estate assets	(10,964)	(13,365)
Proceeds from property sales returned from escrow, net	3,444
Proceeds from sales of common stock of Centaur Media plc	1,216
Deferred leasing costs and other	(1,110)	(564)
Net cash used in investing activities	(13,735)	(13,929)
Financing activities:
Proceeds from mortgage loans	34,750	18,800
Payments on mortgage loans	(12,559)	(9,398)
Dividends paid to stockholders	(1,514)	(1,546)
Repurchase of common stock	(1,474)	(1,951)
Payment of debt issuance costs	(533)	(434)
Payment for termination of interest rate swap agreement	(341)
Mortgage proceeds returned from escrow		600
Net cash provided by financing activities	18,329	6,071
Net increase (decrease) in cash and cash equivalents	10,299	(4,311)
Cash and cash equivalents at beginning of period	24,689	18,271
Cash and cash equivalents at end of period	$ 34,988	$ 13,960