MARKETABLE SECURITIES

12 Months Ended

Jul. 31, 2019

Investments, Debt and Equity Securities [Abstract]

MARKETABLE SECURITIES

2. MARKETABLE SECURITIES:

As of July 31, 2019 and 2018, the Company’s marketable securities were classified as follows:

	July 31, 2019									July 31, 2018
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Non-current:
Available-for-sale:
Mutual funds	$	845,306	$	264,425		$	—	$	1,109,731	$	774,602	$	237,149		$	—	$	1,011,751
Corporate equity securities		1,656,156		814,340			—		2,470,496		1,567,089		562,988			—		2,130,077
	$	2,501,462	$	1,078,765		$	—	$	3,580,227	$	2,341,691	$	800,137		$	—	$	3,141,828

Investment income for the years ended July 31, 2018, 2017 and 2016 consists of the following:

	2019		2018
Interest income	$	56,918	$	25,414
Dividend income		105,687		86,354
Gain (loss) on sale of marketable securities		46,415		(805	)
Total	$	209,020	$	110,963