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Loss Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 9 Months Ended
Jul. 31, 2012
Jul. 31, 2011
Jul. 31, 2012
Jul. 31, 2011
Oct. 31, 2011
Numerator [Abstract]          
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest $ (10,010) $ (7,830) $ (24,387) $ (38,845)  
Net Income (Loss) Attributable to Noncontrolling Interest 88 76 230 197  
Adjustment for Modification of Redeemable Preferred Stock of Subsidiary 0 0 0 (8,987)  
Dividends, Preferred Stock (800) (800) (2,401) (2,400)  
Net loss to common shareholders $ (10,722) $ (8,554) $ (26,558) $ (50,035)  
Demoninator [Abstract]          
Weighted Average Number of Shares Outstanding, Diluted 185,906,834 126,923,550 158,548,998 122,306,465  
Weighted Average Number Diluted Shares Outstanding Adjustment 0 [1] 0 [1] 0 [1] 0 [1]  
Weighted Average Number of Shares Outstanding, Basic 185,906,834 126,923,550 158,548,998 122,306,465  
Earnings Per Share, Basic $ (0.06) $ (0.07) $ (0.17) $ (0.41)  
Earnings Per Share, Diluted $ (0.06) [1] $ (0.07) [1] $ (0.17) [1] $ (0.41) [1]  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 3,156,806 3,900,000 3,156,806 3,900,000 3,320,558
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 10,200,000 10,200,000 10,200,000 10,200,000  
[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.