FINANCIAL INSTRUMENTS AND CREDIT RISK CONCENTRATIONS (Tables)

12 Months Ended

Jul. 31, 2019

Fair Value Disclosures [Abstract]

Schedule of fair value of financial instruments

	July 31, 2019				July 31, 2018
	Carrying		Fair		Carrying		Fair
	Value		Value		Value		Value
Cash and cash equivalents	$	4,117,647	$	4,117,647	$	5,255,073	$	5,255,073
Marketable securities	$	3,580,227	$	3,580,227	$	3,141,828	$	3,141,828
Restricted cash	$	1,146,077	$	1,146,077	$	1,624,550	$	1,624,550
Security deposits payable	$	882,615	$	882,615	$	1,343,671	$	1,343,671
Mortgage	$	5,298,610	$	5,298,610	$	5,467,111	$	4,939,149