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LEASES - As Lessee - Ground Lease and Office Lease (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2024
USD ($)
item
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
item
Jun. 30, 2023
USD ($)
Real Estate in Greensboro, NC        
Lessee Accounting        
Operating lease, renewal term 5 years   5 years  
Operating lease, option to extend     true  
Operating lease, remaining lease term 5 years 8 months 12 days   5 years 8 months 12 days  
Real Estate in Greensboro, NC | Real estate expenses        
Lessee Accounting        
Operating lease expense | $ $ 122,000 $ 150,000 $ 244,000 $ 300,000
Real Estate in Greensboro, NC | Five-Year Lease        
Lessee Accounting        
Operating lease, renewal term 5 years   5 years  
Real Estate in Greensboro, NC | Five-Year Lease | Maximum        
Lessee Accounting        
Operating lease, number of renewal options | item 4   4  
Real Estate in Greensboro, NC | Seven-Month Lease        
Lessee Accounting        
Operating lease, number of renewal options | item 1   1  
Operating lease, renewal term 7 months   7 months  
Corporate office lease in Great Neck, NY        
Lessee Accounting        
Operating lease, option to extend     true  
Operating lease, remaining lease term 12 years 6 months   12 years 6 months  
Corporate office lease in Great Neck, NY | General and administrative expense        
Lessee Accounting        
Operating lease expense | $ $ 14,000 $ 14,000 $ 28,000 $ 28,000
Corporate office lease in Great Neck, NY | Five-Year Lease        
Lessee Accounting        
Operating lease, renewal term 5 years   5 years