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Net Loss Per Share Applicable to Common Stockholders
 6 Months Ended
Oct. 31, 2015
Earnings Per Share [Abstract]  
Net Loss Per Share Applicable to Common Stockholders
Net 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 three and six months ended October 31, 2015 and 2014, respectively (in thousands, except net loss per share data):
 
Three Months Ended October 31,
 
Six Months Ended October 31,
 
2015
 
2014
 
2015
 
2014
Net loss from continuing operations
$
(4,852
)
 
$
(9,908
)
 
$
(15,096
)
 
$
(20,216
)
Net loss from discontinued operations, net of tax
—

 
—

 
—

 
(1,257
)
Net loss applicable to common stockholders
$
(4,852
)
 
$
(9,908
)
 
$
(15,096
)
 
$
(21,473
)
Basic and diluted loss per share
 
 
 
 
 
 
 
Continuing operations
$
(0.06
)
 
$
(0.13
)
 
$
(0.19
)
 
$
(0.26
)
Discontinued operations
—

 
—

 
—

 
(0.02
)
Basic and diluted loss per share:
$
(0.06
)
 
$
(0.13
)
 
$
(0.19
)
 
$
(0.28
)
Basic and diluted weighted average number of shares outstanding
80,678

 
78,280

 
80,426

 
78,023

Potentially dilutive securities (1):
 
 
 
 
 
 
 
Outstanding stock options
212

 
813

 
266

 
864

Restricted shares
11

 
301

 
38

 
243

(1)
The impact of potentially dilutive securities on earnings per share is anti-dilutive in a period of net loss.