Condensed Consolidated Balance Sheets - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Real estate assets and lease intangibles:
Land	$ 46,856,180	$ 45,723,707
Buildings and improvements	187,777,412	182,040,843
Tenant improvements	22,317,577	21,533,750
Lease intangibles	9,055,939	9,096,794
Real estate assets and lease intangibles held for investment, cost	266,007,108	258,395,094
Accumulated depreciation and amortization	(38,325,767)	(36,208,554)
Real estate assets and lease intangibles held for investment, net	227,681,341	222,186,540
Real estate assets held for sale, net	12,375,099	12,347,404
Real estate assets, net	240,056,440	234,533,944
Cash equivalents and restricted cash	6,101,402	8,310,575
Deferred leasing costs, net	1,906,208	1,892,066
Goodwill	2,423,000	2,423,000
Other assets, net	6,895,660	7,337,280
TOTAL ASSETS	257,382,710	254,496,865
Liabilities:
Mortgage notes payable held for investment, net	158,209,676	154,452,779
Mortgage notes payable related to properties held for sale, net	5,886,760	5,869,958
Mortgage notes payable, net	164,096,436	160,322,737
Accounts payable and accrued liabilities	7,214,385	7,142,720
Accrued real estate taxes	2,232,201	3,013,993
Below-market leases, net	1,326,780	1,390,372
Total liabilities	205,473,864	202,454,697
Commitments and contingencies
Equity:
Additional paid-in capital	151,121,902	151,121,902
Dividends and accumulated losses	(114,970,954)	(113,652,763)
Total stockholders' equity before noncontrolling interest	36,327,628	37,645,819
Noncontrolling interest	15,581,218	14,396,349
Total equity	51,908,846	52,042,168
TOTAL LIABILITIES AND EQUITY	257,382,710	254,496,865
Redeemable Convertible Preferred Stock Series B [Member]
Liabilities:
Mandatorily redeemable Series B Preferred Stock, net	30,604,062	30,584,875
Common Class A [Member]
Equity:
Common stock series A	$ 176,680	$ 176,680