RELATED PARTY TRANSACTIONS RELATED PARTY TRANSACTIONS - Advisor Fees to REIT I (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Acquisition fees
Related Party Transaction [Line Items]
Amount paid for related party transactions	$ 746,459	$ 2,752,339
REIT I
Related Party Transaction [Line Items]
Amount paid for related party transactions	51,768	71,177
REIT I | Asset management fees
Related Party Transaction [Line Items]
Amount paid for related party transactions	34,968	38,903
REIT I | Other
Related Party Transaction [Line Items]
Amount paid for related party transactions	$ 16,800	$ 32,274