Cash Flow Information (Details) - Schedule of cash and cash equivalents and restricted cash - USD ($)	Apr. 30, 2022	Jul. 31, 2021	Apr. 30, 2021
Schedule of cash and cash equivalents and restricted cash [Abstract]
Cash and cash equivalents	$ 1,909,732	$ 1,552,389	$ 2,315,885
Restricted cash, tenant security deposits	968,262		763,094
Restricted cash, escrow	71,720		71,674
Restricted cash, other	27,140		27,140
Cash flow information	$ 2,976,854		$ 3,177,793