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Intangibles - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Above-and-Below-Market Lease Intangibles [Member]        
Finite Lived Intangible Assets [Line Items]        
Amortization of intangibles $ 204,400 $ 74,873 $ 408,798 $ 139,284
In-Place Lease Intangibles [Member]        
Finite Lived Intangible Assets [Line Items]        
Amortization of intangibles $ 550,830 $ 329,832 $ 1,101,661 $ 592,212