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Weighted Average Assumptions for Grants (Details) - $ / shares
3 Months Ended 6 Months Ended
Apr. 30, 2015
Apr. 30, 2015
Oct. 31, 2014
Class of Stock [Line Items]      
Number of Shares Available for Grant 2,700,000 2,700,000  
Maximum Number of Shares Per Employee   500,000  
Common Stock, Shares, Outstanding 17,248,688 17,248,688 17,214,284
Restricted Stock [Member]      
Class of Stock [Line Items]      
Award, Shares Issued   89,500  
Common Stock, Shares, Outstanding 22,504 22,504  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 10,000 45,876  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period 3,750 7,000  
Minimum [Member] | Restricted Stock [Member]      
Class of Stock [Line Items]      
Grant Date Fair Value $ 14.97    
Maximum [Member] | Restricted Stock [Member]      
Class of Stock [Line Items]      
Grant Date Fair Value $ 20.64    
Restricted Stock [Member]      
Class of Stock [Line Items]      
Common Stock, Shares, Outstanding 85,132 85,132