v3.7.0.1

Net Loss Per Share Applicable to Common Stockholders (Tables) | 12 Months Ended
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Apr. 30, 2017
Earnings Per Share [Abstract] |
Computations of Loss per Share Applicable to Common Stockholders | The following table sets forth the computations of net loss per share applicable to common stockholders for the years ended April 30, 2017, 2016 and 2015, respectively (in thousands, except net loss per share data):
| Year Ended April 30,
| 2017 |  | 2016 |  | 2015
Net loss from continuing operations | $ | (15,941 | ) |  | $ | (25,339 | ) |  | $ | (33,164 | )
Net loss from discontinued operations, net of tax | — |  |  | — |  |  | (1,257 | )
Net loss applicable to common stockholders | $ | (15,941 | ) |  | $ | (25,339 | ) |  | $ | (34,421 | )
Basic and diluted loss per share |  |  |  |  |
Continuing operations | $ | (0.19 | ) |  | $ | (0.31 | ) |  | $ | (0.42 | )
Discontinued operations | — |  |  | — |  |  | (0.02 | )
Basic and diluted loss per share | $ | (0.19 | ) |  | $ | (0.31 | ) |  | $ | (0.44 | )
Basic and diluted weighted average number of shares outstanding | 83,051 |  |  | 80,859 |  |  | 78,645 |
Potentially dilutive securities (1): |  |  |  |  |
Outstanding stock options | 390 |  |  | 197 |  |  | 721 |
Restricted shares | 857 |  |  | 49 |  |  | 427 |
(1) | The impact of potentially dilutive securities on earnings per share is anti-dilutive in a period of net loss.

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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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