REAL ESTATE INVESTMENTS AND LEASE INTANGIBLES - Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Real Estate [Line Items]
Revenues	$ 40,745	$ 38,789
Net income (loss)	$ 1,033	$ (9,238)
Common Class A
Real Estate [Line Items]
Basic and diluted net loss per share (in dollars per share)	$ 0.07	$ (0.61)
Common Class I
Real Estate [Line Items]
Basic and diluted net loss per share (in dollars per share)	0.06	(0.06)
Common Class T
Real Estate [Line Items]
Basic and diluted net loss per share (in dollars per share)	0.06	(0.61)
Common Class D
Real Estate [Line Items]
Basic and diluted net loss per share (in dollars per share)	0.05	(0.61)
Common Class N
Real Estate [Line Items]
Basic and diluted net loss per share (in dollars per share)	0.07	(0.61)
Class M-I
Real Estate [Line Items]
Basic and diluted net loss per share (in dollars per share)	(0.09)	0
Class T2
Real Estate [Line Items]
Basic and diluted net loss per share (in dollars per share)	(0.11)	0
Class Z
Real Estate [Line Items]
Basic and diluted net loss per share (in dollars per share)	$ 0.42	$ 0