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Mortgage Debt (Details) - Schedule of mortgage and unamortized mortage cost - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Schedule of mortgage and unamortized mortage cost [Abstract]        
Mortgage Balance $ 1,570,383 $ 1,608,516 $ 1,644,657 $ 1,678,660
Unamortized mortgage Costs 71,777 87,509 103,241 118,974
Interest Expense $ 97,006 $ 99,560 $ 101,699 $ 103,544