Quarterly report pursuant to Section 13 or 15(d)

MORTGAGES AND NOTES PAYABLE - Schedule of Mortgages (Details)

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MORTGAGES AND NOTES PAYABLE - Schedule of Mortgages (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Short-Term Debt [Line Items]    
Total mortgages payable $ 31,184  
Mortgages    
Short-Term Debt [Line Items]    
Total mortgages payable 19,891 $ 20,519
Less: Mortgages payable, current (649) (1,491)
Mortgages payable, less current portion 19,242 19,028
Bank of New England – New Bedford, MA and Middleboro, MA properties | Mortgages    
Short-Term Debt [Line Items]    
Total mortgages payable 12,248 12,141
Bank of New England – Wilmington, DE property | Mortgages    
Short-Term Debt [Line Items]    
Total mortgages payable 1,382 1,345
DuQuoin State Bank – Anna, IL and Harrisburg, IL properties | Mortgages    
Short-Term Debt [Line Items]    
Total mortgages payable 752 750
DuQuoin State Bank – Metropolis, IL property | Mortgages    
Short-Term Debt [Line Items]    
Total mortgages payable 2,528 2,508
Du Quoin State Bank - Mt. Vernon, IL property | Mortgages    
Short-Term Debt [Line Items]    
Total mortgages payable 2,981 2,974
Less: Mortgages payable, current (46) (68)
South Porte Bank – Mt. Vernon, IL property | Mortgages    
Short-Term Debt [Line Items]    
Total mortgages payable $ 0 $ 801