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Loss Per Share (Tables)
 9 Months Ended
Jul. 31, 2012
Loss Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The calculation of basic and diluted loss per share was as follows:
 
 
Three Months Ended July 31,
 
Nine Months Ended July 31,
 
2012
 
2011
 
2012
 
2011
Numerator
 
 
 
 
 
 
 
Net loss
$
(10,010
)
 
$
(7,830
)
 
$
(24,387
)
 
$
(38,845
)
Net loss attributable to noncontrolling interest
88

 
76

 
230

 
197

Modification of redeemable preferred stock of subsidiary
—

 
—

 
—

 
(8,987
)
Preferred stock dividend
(800
)
 
(800
)
 
(2,401
)
 
(2,400
)
Net loss to common shareholders
$
(10,722
)
 
$
(8,554
)
 
$
(26,558
)
 
$
(50,035
)
Denominator
 
 
 
 
 
 
 
Weighted average basic common shares
185,906,834

 
126,923,550

 
158,548,998

 
122,306,465

Effect of dilutive securities (1)
—

 
—

 
—

 
—

Weighted average diluted common shares
185,906,834

 
126,923,550

 
158,548,998

 
122,306,465

Basic loss per share
$
(0.06
)
 
$
(0.07
)
 
$
(0.17
)
 
$
(0.41
)
              Diluted loss per share (1)
$
(0.06
)
 
$
(0.07
)
 
$
(0.17
)
 
$
(0.41
)
 
(1)
Diluted loss per share was computed without consideration to potentially dilutive instruments as their inclusion would have been antidilutive, as the strike prices are above current market price. Potentially dilutive instruments include stock options, warrants and convertible preferred stock. At July 31, 2012 and 2011, there were options to purchase 3.2 million and 3.9 million shares of common stock, respectively. There were outstanding warrants for the right to purchase 10.2 million shares as of July 31, 2012 and 2011, respectively. Refer to our Annual Report on Form 10-K for the year ended October 31, 2011 for information on our convertible preferred stock.