CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
OPERATING ACTIVITIES
Net income	$ 12,857	$ 11,384	$ 9,303
Adjustments to reconcile net income to net cash from operating activities
(Gain) loss on sale of real estate and non-real estate investments	320	(470)	(69)
(Gain) on change in control of real estate investment	(550)
(Gain) on sale of joint venture interest	(597)
Loss on extinguishment of debt			18
Net gain on investment in marketable securities			(666)
(Gain) loss on involuntary conversion	34	(197)	(398)
Loss on impairment of property	0	412	0
Loss on lease terminations	299		58
Equity in income of unconsolidated affiliates	(1,019)	(957)	(1,086)
Distributions of earnings of unconsolidated affiliates	1,014	900	1,086
Depreciation	18,507	16,466	12,116
Amortization	3,539	3,076	1,434
Amortization of debt issuance costs	694	666	463
Effects on operating cash flows due to changes in
Restricted deposits - tenant security deposits	(120)	(1,169)	(304)
Restricted deposits - real estate tax and insurance escrows	(159)	330	523
Due from related party	26	49	(45)
Receivables	(474)	(475)	199
Prepaid expenses	411	737	(372)
Marketable securities			666
Other assets	111	(64)	23
Due to related party	179	(2,037)	2,229
Tenant security deposits payable	103	159	244
Accounts payable - trade	(432)	(815)	439
Accrued expenses and other liabilities	(24)	320	2,066
NET CASH PROVIDED BY OPERATING ACTIVITIES	34,719	28,315	27,927
INVESTING ACTIVITIES
Purchase of real estate investment properties	(9,745)	(23,480)	(43,932)
Capital expenditures and tenant improvements	(10,848)	(5,759)	(10,536)
Proceeds from sale of real estate investments	1,409	1,424	625
Proceeds from involuntary conversion	973	529	906
Proceeds from sale of joint venture interest	2,600
Investment in unconsolidated affiliates	(67)	(37)	(674)
Distributions in excess of earnings received from unconsolidated affiliates	542	152	274
Restricted deposits - replacement reserve escrows	(841)	1,456	(1,367)
Notes receivable issued		(51)	(600)
Notes receivable payments received	9
NET CASH USED IN INVESTING ACTIVITIES	(15,968)	(25,766)	(55,304)
FINANCING ACTIVITIES
Payments for financing, debt issuance and lease costs	(446)	(1,938)	(1,668)
Payments on investment certificates and subordinated debt	(50)	(319)	(64)
Reinvested proceeds from investment certificates			17
Principal payments on special assessments payable	(1,984)	(117)	(35)
Proceeds from issuance of mortgage notes payable and subordinated debt	20,271	36,385	24,540
Principal payments on mortgage notes payable	(13,345)	(27,160)	(7,898)
Advances on lines of credit	6,669	16,305	29,630
Payments on lines of credit	(6,669)	(32,725)	(13,210)
Proceeds from contributions received from noncontrolling interest - partially owned properties		5,123
Proceeds from issuance of common shares		25,750
Proceeds from issuance of shares under optional purchase plan	2,150	1,783	1,892
Shares/units redeemed	(2,062)	(2,548)	(4,904)
Dividends/distributions paid	(17,712)	(15,935)	(14,129)
Payment of syndication costs		(1,335)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(13,178)	3,269	14,171
NET CHANGE IN CASH AND CASH EQUIVALENTS	5,573	5,818	(13,206)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	6,461	643	13,849
CASH AND CASH EQUIVALENTS AT END OF PERIOD	12,034	6,461	643
SCHEDULE OF CASH FLOW INFORMATION
Cash paid during the period for interest, net of capitalized interest	18,319	16,249	12,395
SUPPLEMENTARY SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Dividends reinvested	4,760	4,160	3,238
Dividends declared and not paid	1,920	1,762	1,264
UPREIT distributions declared and not paid	4,005	3,557	3,290
UPREIT units converted to REIT common shares	754	87	700
Stock issued pursuant to trustee compensation plan	60	56	23
Acquisition of assets in exchange for the issuance of noncontrolling interest units in UPREIT	23,468	11,228	16,771
Contributed assets in real estate venture			1,316
Purchase of subsidiary ownership from noncontrolling interest in exchange for the issuance of noncontrolling interest units in UPREIT			810
Increase in land improvements due to increase in special assessments payable	908	850	172
Unrealized gain on interest rate swaps	74	53	37
Acquisition of assets with new financing	2,662	45,830	67,813
Acquisition of assets through assumption of debt and liabilities	78	2,051	2,636
Capitalized interest related to construction in progress	136	71	224
Construction in progress with new financing		3,424
Acquisition of assets with accounts payable	$ (34)	$ 213	$ 1,066