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Recent Real Estate Transactions (Acquisitions of Properties) (Details) - Residential Properties [Member] - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Allocated Purchase Price of Properties Acquired [Abstract]    
Land   $ 2,980,108
Buildings and Other   14,580,637
Total purchase price   17,560,745
Forty-Seven Dubose Model Homes [Member]    
Allocated Purchase Price of Properties Acquired [Abstract]    
Land   2,980,108
Buildings and Other   14,580,637
Total purchase price $ 17,600,000 $ 17,560,745