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COMMITMENTS AND CONTINGENCIES (Details)
Dec. 31, 2016
USD ($)
Nov. 19, 2016
item
Dec. 31, 2015
USD ($)
Loss Contingencies [Line Items]      
Insurance recovery receivable $ 700,931   $ 345,645
62 Boylston Street in Boston, MA      
Loss Contingencies [Line Items]      
Number of apartments damaged | item   24  
Insurance recovery receivable $ 701,000