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LEASE INTANGIBLES (Net Value of Other Intangible Assets and Amortization by Class) (Detail) - USD ($) | Mar. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |  |
Lease Intangibles | $ 5,321,296 | $ 7,631,488 | $ 9,026,435
Accumulated Amortization | (4,301,196) | (5,526,477) | (6,164,961)
Lease intangibles, net | 1,020,100 | 2,105,011 | 2,861,474
In-place leases |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Lease Intangibles | 3,186,889 | 4,360,027 | 4,958,477
Accumulated Amortization | (2,592,558) | (3,283,027) | (3,467,781)
Lease intangibles, net | 594,331 | 1,077,000 | 1,490,696
Leasing costs |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Lease Intangibles | 1,800,922 | 2,937,976 | 3,628,080
Accumulated Amortization | (1,455,228) | (2,002,711) | (2,405,514)
Lease intangibles, net | 345,694 | 935,265 | 1,222,566
Above-market leases |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Lease Intangibles | 333,485 | 333,485 | 439,878
Accumulated Amortization | (253,410) | (240,739) | (291,666)
Lease intangibles, net | $ 80,075 | $ 92,746 | $ 148,212

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