Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net loss	$ (2,027,498)	$ (853,601)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization from continuing operations	7,784,917	5,383,266
Depreciation and amortization from discontinued operations	165,646	666,119
Stock compensation	464,827	455,819
Bad debt expense	236,329	122,121
Real estate asset impairments		950,000
Gain on sales of real estate assets, net	(6,243,640)	(5,120,699)
Gain on extinguishment of debt		(536,952)
Amortization of financing costs	1,286,437	417,724
Amortization of above-market rent	212,941	215,523
Amortization of below-market rent	(169,363)	(28,048)
Changes in operating assets and liabilities:
Other assets	(1,170,342)	702,386
Accounts payable and accrued liabilities	2,273,512	1,138,508
Accrued real estate taxes	955,216	664,605
Net cash provided by operating activities	3,768,982	4,176,771
Cash flows from investing activities:
Real estate acquisitions	(67,852,592)	(59,063,369)
Building and tenant improvements	(2,854,939)	(2,567,027)
Deferred leasing costs	(639,004)	(407,261)
Proceeds from sales of real estate assets	37,755,598	22,287,463
Increase in restricted cash	(2,673,288)	(2,731,221)
Net cash used in investing activities	(36,264,225)	(42,481,415)
Cash flows from financing activities:
Proceeds from mortgage notes payable, net of issuance costs	50,864,054	56,859,919
Repayment of mortgage notes payable	(30,834,664)	(22,811,129)
Proceeds from issuance of mandatorily redeemable preferred stock, net of offering costs	18,200,000	13,862,103
Issuance of common stock	49,999
Repurchase of common stock	(176,461)	(212,212)
Redemption of Series 6.3% preferred stock		(1,649,266)
Distributions paid in excess of contributions received from noncontrolling interests	(493,534)	(7,512,262)
Dividends paid	(4,123,730)	(4,803,508)
Net cash provided by financing activities	33,485,664	33,733,645
Net increase (decrease) in cash and cash equivalents	990,421	(4,570,999)
Cash and cash equivalents - beginning of year	5,636,002	10,207,001
Cash and cash equivalents - end of year	6,626,423	5,636,002
Supplemental disclosure of cash flow information:
Interest paid -Series B preferred stock	3,439,189	775,833
Interest paid -mortgage notes payable	5,965,824	6,477,096
Non-cash financing activities:
Reinvestment of cash dividend	2,661,979	3,314,477
Accrual of dividend payable	$ 1,063,454	997,175
Conversion of partnership interests into common stock		$ 165,018