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LEASES - As Lessor (Details)	1 Months Ended	2 Months Ended	12 Months Ended
	Feb. 28, 2021 USD ($) item	Feb. 28, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($) item	Dec. 31, 2019 USD ($)	Aug. 31, 2021 USD ($)
Lessor Accounting
Operating Lease, option to extend			true
Operating Lease, option to terminate			true
Practical expedient, single lease component			false
Components of lease revenues
Fixed lease revenues			$ 70,387,000	$ 69,823,000	$ 70,788,000
Variable lease revenues			11,008,000	11,285,000	12,084,000
Lease revenues			81,395,000	81,108,000	82,872,000
Amortization of intangibles relating to leases, net			785,000	780,000	$ 914,000
Rents expected to be collected during 2022
Additional disclosures
Deferred rents outstanding			132,000
Rents expected to be collected during 2023
Additional disclosures
Deferred rents outstanding			12,000
COVID-19 | Tenants, excluding Regal Cinemas
Additional disclosures
Deferred lease rent				3,360,000
Repayments of COVID-19 related deferred rent		$ 28,000	2,679,000	497,000
Deferred rents outstanding			$ 145,000
Lease payment forgiven				$ 695,000
COVID-19 | Regal Cinemas
Additional disclosures
Number of lease amendments executed | item				2
Number of leases extended | item	1
Renewal term	2 years
Lease payment forgiven				$ 676,000
COVID-19 | Regal Cinemas | Rents payable from September 2020 to August 2021
Additional disclosures
Lease income deferred but not accrued						$ 1,449,000
Rent amount the tenant agreed to pay	$ 441,000

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Amount of non-cash amortization of intangible asset (liability) for above and below market leases.

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