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INVESTMENT IN UNCONSOLIDATED ENTITY - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Sep. 28, 2017
REIT I            
Schedule of Equity Method Investments [Line Items]            
Ownership percentage           72.70%
Ownership percentage by noncontrolling owners           27.30%
Dividends $ 207,950 $ 221,739 $ 542,140 $ 495,357    
Hagg Lane II, LLC | REIT I            
Schedule of Equity Method Investments [Line Items]            
Ownership percentage by noncontrolling owners           23.40%
Hagg Lane III, LLC | REIT I            
Schedule of Equity Method Investments [Line Items]            
Ownership percentage by noncontrolling owners           3.90%
REIT I            
Schedule of Equity Method Investments [Line Items]            
Ownership percentage         4.80%  
Cash distributions received from REIT I   $ 75,746   $ 220,858