INVESTMENTS IN REAL ESTATE - Acquisitions (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($) ft²	Sep. 30, 2021 USD ($) ft²	Sep. 30, 2022 commercial_unit	Sep. 30, 2022 parking_stall	Sep. 30, 2022 residential_unit
3109 S Western Avenue, Los Angeles, CA
Business Acquisition [Line Items]
Square Feet | ft²	5,900
Purchase price	$ 700
Transaction costs in acquisition of real estate	$ 11
Number of real estate property units			7	6
Area of land (square feet) | ft²	5,635
1007 E 7th Street, Austin, TX
Business Acquisition [Line Items]
Square Feet | ft²	1,352
Purchase price	$ 1,900
Transaction costs in acquisition of real estate	$ 50
Area of land (square feet) | ft²	7,450
3022 S Western Avenue, Los Angeles, CA
Business Acquisition [Line Items]
Square Feet | ft²	6,000
Purchase price	$ 5,650
Transaction costs in acquisition of real estate	$ 191
Number of real estate property units | residential_unit					119
Area of land (square feet) | ft²	28,300
3101 S Western Avenue, Los Angeles, CA
Business Acquisition [Line Items]
Square Feet | ft²	3,752
Purchase price	$ 2,260
Transaction costs in acquisition of real estate	$ 14
Number of real estate property units | residential_unit					40
Area of land (square feet) | ft²	11,300
1037 N Sycamore, Los Angeles, CA
Business Acquisition [Line Items]
Square Feet | ft²		4,900
Purchase price		$ 2,900
Transaction costs in acquisition of real estate		$ 33