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UNCONSOLIDATED INVESTMENT IN REAL ESTATE PROPERTY - Narrative (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2023
USD ($)
ft²
Jun. 30, 2022
USD ($)
Jun. 30, 2023
USD ($)
ft²
Jun. 30, 2022
USD ($)
Dec. 31, 2017
ft²
Schedule of Equity Method Investments [Line Items]          
Number of square feet of aggregate leasable space (in square foot) 4,300,000   4,300,000    
Rich Uncles Real Estate Investment Trust          
Schedule of Equity Method Investments [Line Items]          
Number of square feet of aggregate leasable space (in square foot)         91,740
Ownership percentage by noncontrolling owners         27.30%
Dividends | $ $ 58,718 $ 51,786 $ 124,414 $ 147,153  
Rich Uncles Real Estate Investment Trust | Hagg Lane II, LLC          
Schedule of Equity Method Investments [Line Items]          
Ownership percentage by noncontrolling owners         23.40%
Rich Uncles Real Estate Investment Trust | Hagg Lane III, LLC          
Schedule of Equity Method Investments [Line Items]          
Ownership percentage by noncontrolling owners         3.90%
Rich Uncles Real Estate Investment Trust | The TIC Interest          
Schedule of Equity Method Investments [Line Items]          
Ownership percentage 72.70%   72.70%   72.70%