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Real Estate Assets - Net Income, Exclusive of the Gains on Sale (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
MF Properties [Member]        
Real Estate [Line Items]        
Net income (loss) $ 172,367 $ (660,824) $ 161,864 $ (813,867)