Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jul. 31, 2014

Accounting Policies [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

The carrying amounts of the intangible assets as of July 31, 2014 are as follows (in thousands, except years):

	Intangible Assets, Gross						Accumulated Amortization						Intangible Assets, Net				Weighted
																	Average
																	Useful
	July 31,				July 31,		July 31,				July 31,		July 31,				Life
	2013		Additions		2014		2013		Expense		2014		2013		July 31, 2014		(Years)
Developed technology	$	-	$	4,423	$	4,423	$	-	$	(134)	$	(134)	$	-	$	4,289		7
Trade names and Other Intangible Asset		-		817		817		-		(24)		(24)		-		793		7
Total intangible assets, net	$	-	$	5,240	$	5,240	$	-	$	(158)	$	(158)	$	-	$	5,082

Finite-lived Intangible Assets Amortization Expense [Table Text Block]

As of July 31, 2014, the amortization expense related to identifiable intangible assets in future periods is expected to be as follows (in thousands):

			Other		Total
	Developed		Intangible		Intangible
	Technology		Assets		Assets
2015	$	631	$	117	$	748
2016		631		117		748
2017		631		117		748
2018		631		117		748
2019		631		117		748
Thereafter		1,134		208		1,342
Total intangible assets subject to amortization	$	4,289	$	793	$	5,082

Fair Value, by Balance Sheet Grouping [Table Text Block]

The following table presents the carrying amounts and estimated fair values of the Company’s financial instruments at:

	2014				2013
	Carrying				Carrying
	amount		Fair value		amount		Fair value
Financial assets:
Cash and cash equivalents	$	523,540	$	523,540	$	596,871	$	596,871
Accounts receivable	$	490	$	490	$	191,835	$	191,835
Financial liabilities:
Accounts payable and accrued liabilities	$	143,105	$	143,105	$	62,810	$	62,810
Notes payable	$	74,713	$	71,545		-		-

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following table presents the placement in the fair value hierarchy of assets and liabilities that are measured at fair value on a recurring basis at:

			Fair value measurements at reporting date using
	July 31, 2014		Quoted prices in active markets for identical assets (Level 1)	Significant other observable inputs (Level 2)	Significant unobservable inputs (Level 3)
Notes payable	$	74,713			$	71,545

			Fair value measurements at reporting date using
	July 31, 2013		Quoted prices in active markets for identical assets (Level 1)	Significant other observable inputs (Level 2)	Significant unobservable inputs (Level 3)
Notes payable	$	0			$	0