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Earnings Per Share
 12 Months Ended
Apr. 30, 2017
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share
 
The following table summarizes the computations of basic and diluted earnings per share:
 
FISCAL YEARS ENDED APRIL 30
(in thousands, except per share amounts)
2017

2016

2015
Numerator used in basic and diluted earnings per common share:
 

 

 
Net income
$
71,199


$
58,723


$
35,499

Denominator:
 

 

 
Denominator for basic earnings per common share -
 

 

 
weighted-average shares
16,259


16,256


15,764

Effect of dilutive securities:




 
Stock options and restricted stock units
139


186


273

Denominator for diluted earnings per common share -
 

 

 
weighted-average shares and assumed conversions
16,398


16,442


16,037

Net earnings per share
 

 

 
Basic
$
4.38


$
3.61


$
2.25

Diluted
$
4.34


$
3.57


$
2.21



There were no potentially dilutive securities for the fiscal year ended April 30, 2017 and 2016, which were excluded from the calculation of net earnings per share. Potentially dilutive shares of 0.1 million issuable under the Company’s stock incentive plans have been excluded from the calculation of net earnings per share for the fiscal year ended April 30, 2015, as the effect would be anti-dilutive.