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Disposition Investments in Real Estate (Tables)
9 Months Ended
Sep. 30, 2020
San Jose 88 Garage, LLC [Member]  
Summary Of The Results Of Operations Related To The Assets Held For Sale
    For the Three Months Ended September 30,   For the Nine Months Ended September 30,
    2020   2019   2020   2019
Revenue $ -- $ 113,000 $ 113,000 $ 338,000
Expenses *   --   102,000   191,000   705,000
Income/(Loss) from assets held for sale, net of income taxes $ -- $ 11,000 $ (78,000) $ (367,000)