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Lease Intangibles (Net Value of Other Intangible Assets and Amortization by Class) (Details) - USD ($) | Mar. 31, 2019 | Dec. 31, 2018
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Finite Lived Intangible Assets [Line Items] |  |
Lease intangibles | $ 9,026,435 | $ 9,026,435
Accumulated amortization | (6,396,197) | (6,164,961)
Lease intangibles, net | 2,630,238 | 2,861,474
Leases, Acquired-in-Place [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Lease intangibles | 4,958,477 | 4,958,477
Accumulated amortization | (3,590,585) | (3,467,781)
Lease intangibles, net | 1,367,892 | 1,490,696
Leasing Cost [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Lease intangibles | 3,628,080 | 3,628,080
Accumulated amortization | (2,496,491) | (2,405,514)
Lease intangibles, net | 1,131,589 | 1,222,566
Above Market Leases [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Lease intangibles | 439,878 | 439,878
Accumulated amortization | (309,121) | (291,666)
Lease intangibles, net | $ 130,757 | $ 148,212

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