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Loss Per Share (Tables)
 9 Months Ended
Jul. 31, 2015
Earnings 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
 
2015
 
2014
 
2015
 
2014
Numerator
 
 
 
 
 
 
 
Net loss
$
(6,628
)
 
$
(7,139
)
 
$
(20,779
)
 
$
(33,993
)
Net loss attributable to noncontrolling interest
89

 
161

 
280

 
568

Preferred stock dividend
(800
)
 
(800
)
 
(2,400
)
 
(2,400
)
Net loss attributable to common shareholders
$
(7,339
)
 
$
(7,778
)
 
$
(22,899
)
 
$
(35,825
)
Denominator
 
 
 
 
 
 
 
Weighted average basic common shares
298,609,231

 
258,178,826

 
291,747,961

 
233,933,636

Effect of dilutive securities (1)
—

 
—

 
—

 
—

Weighted average diluted common shares
298,609,231

 
258,178,826

 
291,747,961

 
233,933,636

Basic loss per share
$
(0.02
)
 
$
(0.03
)
 
$
(0.08
)
 
$
(0.15
)
              Diluted loss per share (1)
$
(0.02
)
 
$
(0.03
)
 
$
(0.08
)
 
$
(0.15
)
 
(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, unvested restricted stock awards, convertible preferred stock and warrants. As of July 31, 2015 and 2014, there were options to purchase 3.0 million and 3.1 million shares of common stock, respectively, and as of July 31, 2015 and 2014 there were warrants to purchase 4.3 million and 5.75 million shares of common stock, respectively, which were excluded from the computation as they would be antidilutive.