RELATED PARTY TRANSACTIONS - Related Party Costs (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Receivable	$ 2,332	$ 16,838
Payable	630,820	979,174
Accrual organization and offering cost, related party		9,224,997
Asset management fees
Related Party Transaction [Line Items]
Incurred	2,777,021	2,004,760
Receivable	0	0
Payable	$ 0	0
Related party transaction fees, percentage	0.10%
Reimbursable operating expense
Related Party Transaction [Line Items]
Incurred	$ 528,000	0
Receivable	0	0
Payable	0	0
Subordinated participation fees
Related Party Transaction [Line Items]
Incurred	0	839,050
Receivable	0	0
Payable	0	839,050
Fees to affiliates
Related Party Transaction [Line Items]
Incurred	3,305,021	2,843,810
Receivable	0	0
Payable	0	0
Property management fees
Related Party Transaction [Line Items]
Incurred	224,922	174,529
Receivable	0	0
Payable	0	96,792
Directors and officers insurance and other reimbursements
Related Party Transaction [Line Items]
Incurred	250,892	128,512
Receivable	0	0
Payable	0	30,164
Expense reimbursements from Sponsor
Related Party Transaction [Line Items]
Incurred	(332,337)	(1,136,469)
Receivable	0	16,838
Payable	0	0
Acquisition fees
Related Party Transaction [Line Items]
Incurred	746,459	2,752,339
Receivable	0	0
Payable	0	0
Financing coordination fees
Related Party Transaction [Line Items]
Incurred	107,500	262,050
Receivable	0	0
Payable	0	0
Reimbursable organizational and offering expenses
Related Party Transaction [Line Items]
Incurred	1,206,881	1,503,062
Receivable	0	0
Payable	0	13,168
Due from BRIX REIT
Related Party Transaction [Line Items]
Incurred	0	0
Receivable	1,378	0
Payable	0	0
Due from TIC
Related Party Transaction [Line Items]
Incurred	0	0
Receivable	954	0
Payable	0	0
Notes due to Chairman of the Board
Related Party Transaction [Line Items]
Incurred	0	0
Receivable	0	0
Payable	630,820	0
Asset management fees due from BRIX REIT, Inc.
Related Party Transaction [Line Items]
Receivable	285,818
Advisor | Reimbursable organizational and offering expenses
Related Party Transaction [Line Items]
Payable	$ 0	$ 0
Related party transaction fees, percentage	0.025%
Sponsor | Reimbursable organizational and offering expenses
Related Party Transaction [Line Items]
Gross offering proceeds, percentage	3.00%	3.00%
Sponsor | Legal Fees Reimbursement
Related Party Transaction [Line Items]
Employment related legal fees	$ (40,914)	$ 261,370
Maximum | Reimbursable organizational and offering expenses
Related Party Transaction [Line Items]
Incurred	$ 5,429,105