Stock-Based Compensation (Tables)

12 Months Ended

Jul. 31, 2017

Stock-Based Compensation [Abstract]

Schedule of share based compensation stock option activity

	Stock Options			Weighted- average Exercise Price		Weighted- average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (in thousands)
Outstanding as of August 1, 2014		26,548		$	5.67		5.7	$	112
Granted		—			—
Exercised		(12,053	)		5.67
Cancelled/Forfeited		(472	)		5.67
Outstanding as of July 31, 2015		14,023		$	5.67		5.4	$	251
Granted		87,707			50.00
Exercised		(1,631	)		5.67
Cancelled/Forfeited		(298	)		5.67
Outstanding as of July 31, 2016		99,801		$	44.63		3.1	$	152
Granted		—			—
Exercised		(41,114	)		43.82
Cancelled/Forfeited		(179	)		5.67
Outstanding as of July 31, 2017		58,508		$	45.32		2.1	$	7,845
Vested and expected to vest as of July 31, 2017		58,508		$	45.32		2.1	$	7,845
Exercisable as of July 31, 2017		52,828		$	49.58		1.9	$	6,858

Summary of information about options outstanding and exercisable

	Options Outstanding and Exercisable
	Number Outstanding		Weighted- Average Remaining Life In Years		Weighted- Average Exercise Price		Number Exercisable
Exercise prices:
$  5.67		6,183		4.0	$	5.67		503
$  50.00		52,325		1.9		50.00		52,325
		58,508		2.1	$	45.31		52,828

Schedule of options model with valuation assumptions

Risk-free interest rate	0.65	%
Dividend yield	0	%
Volatility	65.6	%
Expected term (in years)	1.8