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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (345 Franklin) (Details)
1 Months Ended 12 Months Ended
Sep. 12, 2016
USD ($)
Jun. 30, 2013
USD ($)
Dec. 31, 2024
USD ($)
property
Dec. 31, 2023
USD ($)
property
Dec. 31, 2022
USD ($)
property
Nov. 30, 2001
USD ($)
item
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES            
Investments in joint venture     $ 1,417,470 $ 1,441,291    
Repayment of loan $ 5,158,000          
Distribution to the Partnership     11,244,559 9,954,888 $ 9,267,981  
Outstanding amount of mortgage     $ 406,205,910 $ 408,660,292    
Maximum | Mortgages payable            
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES            
Interest rate (as a percent)     4.95%      
345 Franklin            
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES            
Investments in joint venture           $ 1,533,000
Ownership interest (as a percent)           50.00%
Number of units | item           40
Distribution to the Partnership   $ 1,610,000        
345 Franklin | Mortgages payable            
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES            
Interest rate (as a percent)   3.87%        
Borrowings   $ 10,000,000        
345 Franklin | Maximum            
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES            
Carrying value   $ 0        
345 Franklin | Mortgage, 3.87%, June 2013            
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES            
Term of debt   15 years        
Outstanding amount of mortgage     $ 8,243,000      
345 Franklin | Mortgage, 3.87%, June 2013 | Mortgages payable            
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES            
Period for which the entity is required to make interest only payments   3 years        
Amortization period of debt   30 years        
345 Franklin | Mortgage, Paid off June 2013 | Mortgages payable            
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES            
Repayment of loan   $ 6,776,000        
345 Franklin            
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES            
Number of units | property     40 40 40  
Outstanding amount of mortgage     $ 8,219,587 $ 8,452,812 $ 8,676,945