Marketable Securities (Tables)

6 Months Ended

Jan. 31, 2016

Marketable Securities: [Abstract]

Schedule of financial assets measured at fair value on recurring basis

	Fair value measurements at reporting date using
	Total								Total
	January 31,								July 31,
Description	2016		Level 1		Level 2		Level 3		2015		Level 1		Level 2		Level 3
Assets:
Marketable securities -
available-for-sale	$	1,168,462	$	1,168,462	$	–	$	–	$	1,461,504	$	1,461,504	$	–	$	–

Schedule of investments measured at fair value

			Unfunded	Redemption Frequency	Redemption
January 31, 2016	Fair Value		Commitments	(if currently eligible)	Notice Period
First Eagle Global CL I	$	258,304	n/a	Daily	None
Parnasus Core Equity Investor CL	$	287,101	n/a	Daily	None
			Unfunded	Redemption Frequency	Redemption
July 31, 2015	Fair Value		Commitments	(if currently eligible)	Notice Period
First Eagle Global CL I	$	271,462	n/a	Daily	None
Parnasus Core Equity Investor CL	$	305,626	n/a	Daily	None
Columbia Flexible Income CL A	$	271,076	n/a	Daily	None

Schedule of classified marketable securities

	January 31, 2016								July 31, 2015
			Gross		Gross						Gross		Gross
			Unrealized		Unrealized		Fair				Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value		Cost		Gains		Losses		Value
Noncurrent:
Available-for-sale:
Mutual funds	$	474,669	$	70,736	$	–	$	545,405	$	719,245	$	131,639	$	2,720	$	848,164
Equity securities		478,214		144,843		–		623,057		445,227		168,113		–		613,340
	$	952,883	$	215,579	$	–	$	1,168,462	$	1,164,472	$	299,752	$	2,720	$	1,461,504

Schedule of investment securities have been in a continuous unrealized loss position

	January 31, 2016				July 31, 2015
			Less Than				Less Than
Mutual funds	Fair Value		12 Months		Fair Value		12 Months
	$	–	$	–	$	271,076	$	2,720

Schedule of investment income

	Three Months Ended					Six Months Ended
	January 31					January 31
	2016			2015		2016			2015
Gain (loss) on sale of marketable securities	$	(38,538	)	$	–	$	(38,538	)	$	386
Interest income		756			662		1,665			1,287
Dividend income		37,702			25,691		44,015			30,871
Total	$	(80	)	$	26,353	$	7,142		$	32,544