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Noncontrolling Interest
12 Months Ended
Dec. 31, 2021
Noncontrolling Interest [Abstract]  
Noncontrolling Interest Noncontrolling InterestsThe noncontrolling interest represents the third party ownership interest in TCI and Income Opportunity Realty Investors, Inc. ("IOR"). We owned 78.4% of TCI, which in turn owned 81.1% in in IOR, during the years ended December 31, 2021, 2020 and 2019.