Fair Value Measurements (Details) (USD $)	Oct. 31, 2013	Apr. 10, 2013	Oct. 31, 2012	Jun. 30, 2005
Calavo Growers, Inc. [Member]
Liabilities at fair value:
Calavo's common stock, shares owned	500,000			1,000,000
Ownership percentage of common stock	3.20%			6.90%
Price per share	$ 29.69	$ 29.02	$ 23.61
Fair Value, Measurements, Recurring [Member]
Assets at fair value:
Available-for-sale securities	$ 14,845,000
Liabilities at fair value:
Derivatives	2,240,000
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Assets at fair value:
Available-for-sale securities	14,845,000
Liabilities at fair value:
Derivatives
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Assets at fair value:
Available-for-sale securities
Liabilities at fair value:
Derivatives	2,240,000
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Assets at fair value:
Available-for-sale securities
Liabilities at fair value:
Derivatives