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v3.19.1

Segments (Net Operating Income by Segment) (Details) - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Net Operating Income [Abstract] |  |
Rental, fees and other income | $ 7,179,264 | $ 8,224,834
Property and related expenses | (2,763,550) | (2,649,909)
Net operating income, as defined | 4,415,714 | 5,574,925
General and administrative expenses | (1,760,703) | (1,333,465)
Depreciation and amortization | (2,210,081) | (2,339,044)
Interest expense | (2,545,203) | (3,076,976)
Other income (expense) | 5,524 | (18,291)
Income tax expense | (81,430) | (32,423)
Gain on sale of real estate | 1,214,242 | 74,213
Net loss | (961,937) | (1,151,061)
Office/Industrial Properties [Member] |  |
Net Operating Income [Abstract] |  |
Rental, fees and other income | 5,454,153 | 6,157,147
Property and related expenses | (2,504,787) | (2,350,611)
Net operating income, as defined | 2,949,366 | 3,806,536
Model Home Properties [Member] |  |
Net Operating Income [Abstract] |  |
Rental, fees and other income | 1,081,684 | 1,123,767
Property and related expenses | (50,422) | (52,526)
Net operating income, as defined | 1,031,262 | 1,071,241
Retail/Mixed Use Properties [Member] |  |
Net Operating Income [Abstract] |  |
Rental, fees and other income | 643,427 | 943,920
Property and related expenses | (208,341) | (246,772)
Net operating income, as defined | $ 435,086 | $ 697,148

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