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FAIR VALUE MEASUREMENTS (Details) - USD ($)
Dec. 31, 2021
Dec. 31, 2020
FAIR VALUE MEASUREMENTS    
Line of credit $ 0 $ 17,000,000
Mortgage Notes Payable    
Carrying Amount 370,481,390 283,444,533
Estimated Fair Value 383,244,134 303,993,142
Partially owned properties    
Mortgage Notes Payable    
Carrying Amount 166,203,705 166,308,029
Estimated Fair Value $ 175,881,762 $ 179,647,759