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Lease Intangibles (Net Value of Other Intangible Assets and Amortization by Class) (Details) - USD ($) | Jun. 30, 2019 | Dec. 31, 2018
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Finite Lived Intangible Assets [Line Items] |  |
Lease intangibles | $ 8,856,930 | $ 9,026,435
Accumulated amortization | (6,400,361) | (6,164,961)
Lease intangibles, net | 2,456,569 | 2,861,474
Leases, Acquired-in-Place [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Lease intangibles | 4,924,439 | 4,958,477
Accumulated amortization | (3,654,980) | (3,467,781)
Lease intangibles, net | 1,269,459 | 1,490,696
Leasing Cost [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Lease intangibles | 3,593,077 | 3,628,080
Accumulated amortization | (2,524,054) | (2,405,514)
Lease intangibles, net | 1,069,023 | 1,222,566
Above Market Leases [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Lease intangibles | 339,414 | 439,878
Accumulated amortization | (221,327) | (291,666)
Lease intangibles, net | $ 118,087 | $ 148,212

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