Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Aug. 31, 2018	Aug. 31, 2017
Operating activities:
Net (loss) income	$ (1,514)	$ 5,117
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	8,450	7,373
Gain on sales of properties	(879)	(10,035)
Deferred income taxes	634	2,806
Stock-based compensation expense	261	260
Amortization of debt issuance costs	224	262
Gain on sale of common stock of Centaur Media plc		(275)
Amortization of terminated swap agreement	162	40
Payment of employee withholding taxes on options exercised	(39)
Changes in assets and liabilities:
Other assets	(1,950)	(3,235)
Accounts payable and accrued liabilities	(832)	(462)
Deferred revenue	(1)	2,880
Other liabilities	480	974
Net cash provided by operating activities	4,996	5,705
Investing activities:
Additions to real estate assets	(23,667)	(10,964)
Short-term investments	(11,000)
Proceeds from sales of properties, net of expenses	998	12,119
Deferred leasing costs and other	(485)	(1,110)
Proceeds from sales of properties deposited in escrow, net	91	3,444
Acquisition of building		(18,440)
Proceeds from sales of common stock of Centaur Media plc		1,216
Net cash used in investing activities	(34,063)	(13,735)
Financing activities:
Proceeds from mortgage loans	26,806	34,750
Principal payments on mortgage loans	(14,501)	(12,559)
Dividends paid to stockholders	(2,000)	(1,514)
Payment of debt issuance costs	(568)	(533)
Proceeds from exercise of stock options	1,234
Repurchase of common stock		(1,474)
Payment for termination of interest rate swap agreement		(341)
Net cash provided by financing activities	10,971	18,329
Net (decrease) increase in cash and cash equivalents	(18,096)	10,299
Cash and cash equivalents at beginning of period	30,068	24,689
Cash and cash equivalents at end of period	$ 11,972	$ 34,988