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Earnings Per Share | 12 Months Ended
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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.

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