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CASH FLOW INFORMATION (Schedule of Cash and Cash Equivalents and Restricted Cash) (Details) - USD ($)
Jul. 31, 2021
Jul. 31, 2020
Jul. 31, 2019
Supplemental Cash Flow Elements [Abstract]      
Cash and cash equivalents $ 1,552,389 $ 3,260,135  
Restricted cash, tenant security deposits 783,470 794,151  
Restricted cash, escrow 71,720 321,675  
Restricted cash, other 27,140 27,840  
Cash flow information $ 2,434,719 $ 4,403,801 $ 5,263,724