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Related party transactions (Details Textual) (USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Apr. 30, 2013
Apr. 30, 2012
Apr. 30, 2013
Apr. 30, 2012
Apr. 10, 2013
Oct. 31, 2012
Director [Member]
           
Related party transactions (Textual) [Abstract]            
Accounts payable to related parties $ 2.2   $ 2.2     $ 0.3
Limoneira [Member]
           
Related party transactions (Textual) [Abstract]            
Dividend income from Limoneira 0.1 0.1 0.1 0.1    
Common stock repurchased, shares 165,000          
Purchase price, per share $ 18.63   $ 18.63   $ 29.02 $ 22.47
Total amount wired to company 4.8          
LIG [Member]
           
Related party transactions (Textual) [Abstract]            
Rent paid 0.1 0.1 0.3 0.3    
Third Coast [Member]
           
Related party transactions (Textual) [Abstract]            
Aggregate amount of avocados procured from entities owned or controlled by members of our Board of Directors 0.2 0.5 1.0 1.0    
Accounts payable to related parties           0.1
Sales made to Third Coast 0.6 0.7 1.6 1.5    
Amounts due from Third Coast 0.8   0.8     0.8
THNC [Member]
           
Related party transactions (Textual) [Abstract]            
Rent paid 0.1   0.2      
Avocados [Member] | Director [Member]
           
Related party transactions (Textual) [Abstract]            
Aggregate amount of avocados procured from entities owned or controlled by members of our Board of Directors $ 6.1 $ 1.8 $ 6.4 $ 2.1