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Loss Per Share
 3 Months Ended
Jan. 31, 2014
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 January 31,
 
 
2014
 
2013
 
Numerator
 
 
 
 
Net loss
$
(10,815
)
 
$
(11,879
)
 
Net loss attributable to noncontrolling interest
211

 
198

 
Preferred stock dividend
(800
)
 
(800
)
 
Net loss attributable to common shareholders
$
(11,404
)
 
$
(12,481
)
 
Denominator
 
 
 
 
Weighted average basic common shares
200,637,819

 
187,553,306

 
Effect of dilutive securities (1)
—

 
—

 
Weighted average diluted common shares
200,637,819

 
187,553,306

 
Basic loss per share
$
(0.06
)
 
$
(0.07
)
 
              Diluted loss per share (1)
$
(0.06
)
 
$
(0.07
)
 
 
(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, senior unsecured convertible notes and warrants. At January 31, 2014 and 2013, there were options to purchase 3.1 million shares of common stock. On September 4, 2013, the Company entered into a co-marketing agreement with NRG for the marketing and sales of the Company's power plants which include the issuance of warrants to purchase up to 5.0 million shares of the Company's common stock.