INVESTMENT IN UNCONSOLIDATED ENTITIES - Narrative (Details)	1 Months Ended			12 Months Ended
	Oct. 31, 2023 USD ($) ft²	Feb. 28, 2023 USD ($) ft² investor	Feb. 28, 2022 USD ($)	Dec. 31, 2023 USD ($) ft²	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)
Schedule of Equity Method Investments [Line Items]
Income (loss) from investments				$ (427,000)	$ 164,000
Investments in unconsolidated entities				33,505,000	$ 12,381,000
Percentage of ownership acquired					100.00%
Office Property, Los Angeles, California
Schedule of Equity Method Investments [Line Items]
Purchase price			$ 22,400,000
1910 Sunset Boulevard
Schedule of Equity Method Investments [Line Items]
Income (loss) from investments				(2,400,000)	$ 164,000
Investments in unconsolidated entities				$ 12,040,000	12,381,000
Ownership Interest				44.20%
1910 Sunset Boulevard | Office Building
Schedule of Equity Method Investments [Line Items]
Square Feet | ft²				104,764
4750 Wilshire Boulevard
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities				$ 9,119,000	0
Interests acquired		20.00%
Ownership Interest				20.00%
4750 Wilshire Boulevard | Three Co-Investors
Schedule of Equity Method Investments [Line Items]
Purchase price		$ 34,400,000
Number of co-investors | investor		3
Interests acquired		80.00%
4750 Wilshire Boulevard | Office Building
Schedule of Equity Method Investments [Line Items]
Square Feet | ft²		30,335		30,335
1902 Park Avenue
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities				$ 7,082,000	0
Ownership Interest				50.00%
1015 N Mansfield Avenue
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities				$ 5,264,000	$ 0
Ownership Interest				28.80%
1015 N Mansfield Avenue | Office Building
Schedule of Equity Method Investments [Line Items]
Square Feet | ft²				44,141
Corporate Joint Venture | Office Property, Los Angeles, California
Schedule of Equity Method Investments [Line Items]
Purchase price			$ 51,000,000
Corporate Joint Venture | 4750 Wilshire Boulevard
Schedule of Equity Method Investments [Line Items]
Income (loss) from investments				$ 1,800,000
Investments in unconsolidated entities				9,100,000
Conversion cost		$ 31,000,000
Corporate Joint Venture | 1902 Park Avenue
Schedule of Equity Method Investments [Line Items]
Purchase price		$ 19,100,000
Income (loss) from investments				156,000
Investments in unconsolidated entities				7,100,000
Ownership Interest		50.00%
Corporate Joint Venture | 1015 N Mansfield Avenue
Schedule of Equity Method Investments [Line Items]
Purchase price	$ 18,000,000
Income (loss) from investments				13,000
Investments in unconsolidated entities				$ 5,300,000
Ownership Interest	28.80%
Percentage of ownership acquired	100.00%
Corporate Joint Venture | 1015 N Mansfield Avenue | Office Building
Schedule of Equity Method Investments [Line Items]
Area of land (square feet) | ft²	44,141
Corporate Joint Venture | Mortgages Payable | Office Property, Los Angeles, California
Schedule of Equity Method Investments [Line Items]
Aggregate principal amount						$ 23,900,000
Corporate Joint Venture | Mortgages Payable | 4750 Wilshire Boulevard
Schedule of Equity Method Investments [Line Items]
Mortgage payable assumed		$ 38,500,000
Corporate Joint Venture | Mortgages Payable | 1902 Park JV
Schedule of Equity Method Investments [Line Items]
Aggregate principal amount		$ 9,600,000