BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Accounting Policies [Abstract]
Lease incentives	$ 4,100,000		$ 4,100,000		$ 4,000,000
Lease incentives, accumulated amortization	3,000,000		3,000,000		2,700,000
Allowance for uncollectible accounts receivable	337,000		337,000		$ 579,000
Tenant recoveries outside of lease agreements	0	$ 0	0	$ 0
Remaining performance obligations	$ 0		$ 0