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Note 6 - Net Income Per Common Share | 12 Months Ended
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Apr. 30, 2014
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] | 6. NET INCOME PER COMMON SHARE Due to the immaterial error discussed in this Amendment No. 1, amounts in this footnote have been revised. For further discussion of the revision, see footnote 2, Correction of Immaterial Errors. Computations for basic and diluted earnings per common share are presented below:
|  | Years ended April 30, |
|  | 2014 |  |  | 2013 |  |  | 2012 |
Basic |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 126,820 |  |  | $ | 103,814 |  |  | $ | 114,694 |
Weighted average shares outstanding-basic |  |  | 38,457,680 |  |  |  | 38,297,083 |  |  |  | 38,068,001 |
Basic earnings per common share |  | $ | 3.30 |  |  | $ | 2.71 |  |  | $ | 3.01 |
Diluted |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 126,820 |  |  | $ | 103,814 |  |  | $ | 114,694 |
Weighted-average shares outstanding-basic |  |  | 38,457,680 |  |  |  | 38,297,083 |  |  |  | 38,068,001 |
Plus effect of stock options and restricted stock units |  |  | 410,726 |  |  |  | 322,993 |  |  |  | 323,703 |
Weighted-average shares outstanding-diluted |  |  | 38,868,406 |  |  |  | 38,620,076 |  |  |  | 38,391,704 |
Diluted earnings per common share |  | $ | 3.26 |  |  | $ | 2.69 |  |  | $ | 2.99 |
Options to purchase shares of common stock that were not included in the computation of diluted earnings per share, because their inclusion would have been antidilutive, were 439,000 for fiscal 2012. All options were included for fiscal 2014 and fiscal 2013.

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