Stock-Based Compensation (Tables)

6 Months Ended

Jan. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Common stock options granted, forfeited or expired and exercised

	Options		Weighted Average Exercise Price per Share		Aggregate Intrinsic Value
Outstanding: Aug. 1, 2016 and Jan. 31, 2017		19,639	$	28.66	$	70,836
Exercisable, January 31, 2017		19,639	$	28.66	$	70,836