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Loss Per Share
 9 Months Ended
Jul. 31, 2013
Earnings Per Share [Abstract]  
Loss Per Share
Loss Per Share
The calculation of basic and diluted loss per share was as follows:
 
Three Months Ended July 31,
 
Nine Months Ended July 31,
 
2013
 
2012
 
2013
 
2012
Numerator
 
 
 
 
 
 
 
Net loss
$
(5,814
)
 
$
(10,010
)
 
$
(25,322
)
 
$
(24,387
)
Net loss attributable to noncontrolling interest
202

 
88

 
664

 
230

Preferred stock dividend
(800
)
 
(800
)
 
(2,400
)
 
(2,401
)
Net loss attributable to common shareholders
$
(6,412
)
 
$
(10,722
)
 
$
(27,058
)
 
$
(26,558
)
Denominator
 
 
 
 
 
 
 
Weighted average basic common shares
192,051,578

 
185,906,834

 
190,006,331

 
158,548,998

Effect of dilutive securities (1)
—

 
—

 
—

 
—

Weighted average diluted common shares
192,051,578

 
185,906,834

 
190,006,331

 
158,548,998

Basic loss per share
$
(0.03
)
 
$
(0.06
)
 
$
(0.14
)
 
$
(0.17
)
              Diluted loss per share (1)
$
(0.03
)
 
$
(0.06
)
 
$
(0.14
)
 
$
(0.17
)
 
(1)
Diluted loss per share was computed without consideration to potentially dilutive instruments as their inclusion would have been antidilutive. Potentially dilutive instruments include stock options, convertible preferred stock and senior unsecured convertible notes. At July 31, 2013 and 2012, there were options to purchase 3.2 million and 3.2 million, respectively, shares of common stock. Refer to our Annual Report on Form 10-K for the year ended October 31, 2012 for information on our convertible preferred stock and refer to Footnote 9 for information on the senior unsecured convertible notes.