v2.4.0.8
Net income per share attributable to common stockholders (Tables)
9 Months Ended
Oct. 31, 2014
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table sets forth the computation of basic and diluted net income per share attributable to common stockholders:
(in thousands, except per share data)

Three months ended October 31,
 

Nine months ended October 31,
 

2014


2013


2014


2013

Numerator (basic and diluted):








Net income

$
3,049


$
1,978


$
8,795


$
5,950

Add back (deduction): accretion of redeemable convertible preferred stock



(245
)

4,021


(925
)
Less: dividend on redeemable convertible preferred stock and dividend on convertible preferred stock

(21
)

(650
)

(1,286
)

(1,951
)
Less: undistributed income attributed to redeemable convertible preferred stockholders

(8
)

(476
)

(1,285
)

(1,357
)
Net income attributable to common stockholders for basic earnings per share

$
3,020


$
607


$
10,245


$
1,717

Add back: dividend of redeemable convertible preferred stock

15


241


1,286


723

Add back (deduction): accretion on redeemable convertible preferred stock and dividend on convertible preferred stock



75


(4,021
)

284

Add back: series D-3 derivative liability revaluations





735



Add back: adjustment to undistributed income attributed to redeemable convertible preferred stockholders

1


290


1,285


796

Net income attributable to common stockholders for diluted earnings per share

$
3,036


$
1,213


$
9,530


$
3,520










Denominator (basic):








Weighted-average common shares outstanding

53,678


5,582


23,232


5,548

Denominator (diluted):








Weighted-average common shares outstanding

53,678


5,582


23,232


5,548

Effect of potential dilutive securities:








Weighted-average dilutive effect of stock options

2,944


1,156


3,290


1,168

Weighted-average dilutive effect of common shares from stock warrants

3


2,579


1,634


2,581

Dilutive effect from preferred stock assuming conversion

928


19,408


21,896


19,408

Weighted-average common shares outstanding

57,553


28,725


50,052


28,705

Net income per share attributable to common stockholders:








Basic

$
0.06


$
0.11


$
0.44


$
0.31

Diluted

$
0.05


$
0.04


$
0.19


$
0.12