INVESTMENTS IN UNCONSOLIDATED ENTITIES - Equity Method Investments (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	$ 10,388,588	$ 14,275,815
The TIC Interest
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	10,388,588	10,749,332
Rich Uncles Real Estate Investment Trust I (“REIT I”)
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	$ 0	$ 3,526,483