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Earnings (Loss) Per Share (Tables) | 12 Months Ended
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Apr. 30, 2014
Earnings (Loss) Per Share [Abstract] |
Schedule Of Earnings (Loss) Per Share, Basic And Diluted |
|  | FISCAL YEARS ENDED APRIL 30
(in thousands, except per share amounts) |  | 2014 |  |  | 2013 |  |  | 2012
Numerator used in basic and diluted earnings (loss) per common share: |  |  |  |  |  |  |  |
Net income (loss) | $ | 20,461 |  | $ | 9,758 |  | $ | (20,786)
Denominator: |  |  |  |  |  |  |  |
Denominator for basic earnings (loss) per common share - |  |  |  |  |  |  |  |
weighted-average shares |  | 15,299 |  |  | 14,563 |  |  | 14,344
Effect of dilutive securities: |  |  |  |  |  |  |  |
Stock options and restricted stock units |  | 354 |  |  | 270 |  |  | 0
Denominator for diluted earnings (loss) per common share - |  |  |  |  |  |  |  |
weighted-average shares and assumed conversions |  | 15,653 |  |  | 14,833 |  |  | 14,344
Net earnings (loss) per share |  |  |  |  |  |  |  |
Basic | $ | 1.34 |  | $ | 0.67 |  | $ | (1.45)
Diluted | $ | 1.31 |  | $ | 0.66 |  | $ | (1.45)

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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