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Loss Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Earnings Per Share [Abstract]    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 5,000,000  
Numerator [Abstract]    
Net Loss $ (10,815) $ (11,879)
Net Income (Loss) Attributable to Noncontrolling Interest 211 198
Dividends, Preferred Stock (800) (800)
Net loss attributable to common shareholders $ (11,404) $ (12,481)
Demoninator [Abstract]    
Weighted Average Number of Shares Outstanding, Diluted 200,637,819 187,553,306
Weighted Average Number Diluted Shares Outstanding Adjustment 0 [1] 0 [1]
Weighted Average Number of Shares Outstanding, Basic 200,637,819 187,553,306
Earnings Per Share, Basic $ (0.06) $ (0.07)
Earnings Per Share, Diluted $ (0.06) [1] $ (0.07) [1]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 3,097,364 3,181,464
[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.