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Benefit Plans 5 (Details) (USD $)
 12 Months Ended
Oct. 31, 2013
Oct. 31, 2012
Oct. 31, 2011
Employee Stock Purchase Plan Disclosures [Line Items]      
Common Stock, Capital Shares Reserved for Future Issuance 5,000,000    
Weighted Average Expented Life Assumption for Employee Stock Purchase Plan 0 years 6 months 0 years 6 months 0 years 6 months
Weighted Average Risk Free Interest Rate for Employee Stock Purchase Plan 15.00% 7.00% 0.20%
Volatility for Employee Stock Purchase Plan 75.00% 92.00% 90.50%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 0.79    
Weighted Average Dividend Yield for Employee Stock Purchase Plan 0.00% 0.00% 0.00%
Employee Stock Purchase Plan [Member]
      
Employee Stock Purchase Plan Disclosures [Line Items]      
Common Stock, Capital Shares Reserved for Future Issuance 549,584 774,373  
Stock Issuance Terms 85.00%    
Stock Issued During Period, Shares, Employee Stock Purchase Plans (224,789)