BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Accounting Policies [Abstract]
Lease incentives	$ 4,000,000		$ 4,000,000		$ 4,000,000
Lease incentives, accumulated amortization	2,900,000		2,900,000		2,700,000
Allowance for uncollectible accounts receivable	314,000		314,000		$ 579,000
Tenant recoveries outside of lease agreements	0	$ 0	0	$ 0
Remaining performance obligations	$ 0		$ 0