Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Feb. 29, 2020	Feb. 28, 2019
Operating activities:
Net loss	$ (320)	$ (586)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	3,235	2,942
Gain on sales of properties	(584)	(52)
Noncash rental revenue including straight-line rents	(512)	(630)
Amortization of debt issuance costs	103	74
Deferred income taxes	(96)	(180)
Stock-based compensation expense	57	90
Amortization of terminated swap agreement		31
Changes in assets and liabilities:
Other assets	(258)	192
Accounts payable and accrued liabilities	936	122
Deferred revenue	(570)	(538)
Other liabilities	(1,586)	22
Net cash provided by operating activities	405	1,487
Investing activities:
Acquisition of land and building	(7,921)
Additions to real estate assets	(3,796)	(1,923)
Changes in short-term investments, net	1,011	2,000
Proceeds from sales of properties, net of expenses	740	866
Deferred leasing costs and other	(158)	(190)
Net cash (used in) provided by investing activities	(10,124)	753
Financing activities:
Proceeds from mortgage and construction loans	21,500	141
Principal payments on mortgage loans	(4,254)	(949)
Dividends paid to stockholders	(2,538)	(2,279)
Net repayments on revolving lines of credit	(1,775)
Payment of debt issuance costs	(393)
Net cash provided by (used in) financing activities	12,540	(3,087)
Net increase (decrease) in cash and cash equivalents	2,821	(847)
Cash and cash equivalents at beginning of period	5,874	8,592
Cash and cash equivalents at end of period	$ 8,695	$ 7,745