Net Income Per Ordinary Share (Tables)

3 Months Ended

Apr. 30, 2017

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Income Per Ordinary Share

The following table sets forth the computation of basic and diluted net income per ordinary share for the periods indicated:

	ThreeMonths Ended April 30,
	2017		2016
	(in thousands, except share and per share data)
Numerator:
Net income	$	2,564	$	1,783
Denominator:
Weighted-average ordinary shares - basic		33,253,817		32,428,047
Effect of potentially dilutive securities:
Employee stock options		1,006,149		1,050,288
Restricted stock and restricted stock units		422,744		465,976
Employee stock purchase plan		2,371		6,425
Weighted-average ordinary shares - diluted		34,685,081		33,950,736
Net income per ordinary share:
Basic	$	0.08	$	0.05
Diluted	$	0.07	$	0.05

Weighted-Average Potentially Dilutive Securities Excluded from Computation of Diluted Net Income Per Ordinary Share

The following weighted-average potentially dilutive securities were excluded from the computation of diluted net income per ordinary share as their effect would have been antidilutive: 

	Three Months Ended April 30,
	2017		2016
Options to purchase ordinary shares		261,722		480,698
Restricted stock and restricted stock units		913,126		1,201,918
Employee stock purchase plan		25,948		34,381
		1,200,796		1,716,997