Marketable Securities (Tables)

3 Months Ended

Oct. 31, 2015

Marketable Securities: [Abstract]

Schedule of financial assets measured at fair value on recurring basis

	Fair value measurements at reporting date using
	Total								Total
	October 31,								July 31,
Description	2015		Level 1		Level 2		Level 3		2015		Level 1		Level 2		Level 3
Assets:
Marketable securities -
available-for-sale	$	1,440,641	$	1,440,641	$	–	$	–	$	1,461,504	$	1,461,504	$	–	$	–

Schedule of investments measured at fair value

			Unfunded	Redemption Frequency	Redemption
October 31, 2015	Fair Value		Commitments	(if currently eligible)	Notice Period
First Eagle Global CL I	$	273,200	n/a	Daily	None
Parnasus Core Equity Investor CL	$	306,034	n/a	Daily	None
Columbia Flexible Income CL A	$	264,801	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

	October 31, 2015								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	$	723,521	$	132,916	$	12,402	$	844,035	$	719,245	$	131,639	$	2,720	$	848,164
Equity securities		450,491		146,115		–		596,606		445,227		168,113		–		613,340
	$	1,174,012	$	279,031	$	12,402	$	1,440,641	$	1,164,472	$	299,752	$	2,720	$	1,461,504

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

	October 31, 2015				July 31, 2015
			Less Than				Less Than
	Fair Value		12 Months		Fair Value		12 Months
Mutual funds	$	264,801	$	12,402	$	271,076	$	2,720

Schedule of investment income

	Three Months Ended
	October 31
	2015		2014
Gain on sale of marketable securities	$	–	$	386
Interest income		909		625
Dividend income		6,313		5,180
Total	$	7,222	$	6,191