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Earnings Per Share (Tables) | 9 Months Ended
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Apr. 30, 2015
Earnings Per Share [Abstract] |
Schedule of numerators and denominators used in basic and diluted EPS calculations | The following table reconciles the numerators and denominators used in the basic and diluted EPS calculations:
|  | Three months ended April 30, |  | Nine months ended April 30,
|  | 2015 |  | 2014 |  | 2015 |  | 2014
Numerator: |  |  |  |  |  |  |  |
Net income for basic calculation |  | $ | 4,960,000 |  |  | 5,875,000 |  |  | 17,770,000 |  |  | 17,163,000 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
Interest expense (net of tax) on 3.0% convertible senior notes |  | — |  |  | 1,117,000 |  |  | — |  |  | 3,351,000 |
Numerator for diluted calculation |  | $ | 4,960,000 |  |  | 6,992,000 |  |  | 17,770,000 |  |  | 20,514,000 |
Denominator: |  |  |  |  |  |  |  |
Denominator for basic calculation |  | 16,202,000 |  |  | 15,200,000 |  |  | 16,220,000 |  |  | 15,882,000 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |
Stock-based awards |  | 180,000 |  |  | 290,000 |  |  | 248,000 |  |  | 218,000 |
Conversion of 3.0% convertible senior notes |  | — |  |  | 6,274,000 |  |  | — |  |  | 6,224,000 |
Denominator for diluted calculation |  | 16,382,000 |  |  | 21,764,000 |  |  | 16,468,000 |  |  | 22,324,000 |

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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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