SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Other Operating items, net (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Other operating items, net		$ 2,229,000	$ 36,000	$ 3,546,000
Other operating items, net	$ 474,000
Net proceeds from a sale of a COVID closure related insurance claim	1,200,000		1,200,000
Professional service fees relating to our construction litigation	600,000	2,400,000	1,200,000	3,700,000
Litigation proceeds				$ 200,000
Gain (loss) on disposition of assets	$ 100,000	$ 200,000	$ 100,000