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Fruit Growers Supply Cooperative (Details) (USD $)
1 Months Ended 12 Months Ended
Sep. 30, 2011
Oct. 31, 2012
Oct. 31, 2011
Oct. 31, 2010
Fruit Growers Supply Cooperative [Abstract]        
Total amount of allocated after tax earnings from cooperative supply corporation   $ 981,000    
Amount of dividends received from cooperative supply corporation, recorded as reductions against agribusiness expenses   113,000 96,000 154,000
Amount of refund being sought by cooperative supply corporation 586,000      
Balance of remaining claim outstanding   $ 377,000 $ 490,000