Net income per common share

3 Months Ended

Oct. 31, 2017

Earnings Per Share [Abstract]

Net income per common share

12. Net income per common share

Basic net income per share is computed using the weighted average number of common shares outstanding during the period. Diluted net income per share is computed using the sum of the weighted average number of common shares outstanding during the period and, if dilutive, the weighted average number of potential shares of common stock, including unvested restricted stock and the assumed exercise of stock options using the treasury stock method.

Basic and diluted net income per share are calculated as follows:

	Three Months Ended
	October 31,
(in millions, except per share data and share data in thousands)	2017		2016
Net income	$	5.7	$	2.5
Weighted average number of common shares    outstanding-basic		12,473		12,419
Effect of dilutive securities:
Stock options and restricted stock units		126		197
Weighted average number of common shares    outstanding-diluted		12,599		12,616
Basic net income per share	$	0.45	$	0.20
Diluted net income per share	$	0.45	$	0.20
Anti-dilutive shares related to outstanding stock options    and unvested restricted stock  (A)		26		1

(A) These shares related to outstanding stock options and unvested restricted stock were not included in our calculations of diluted earnings per share, as the effect of including them would be anti-dilutive.