Investment in Calavo Growers, Inc. (Details) (USD $)	1 Months Ended	12 Months Ended				1 Months Ended	12 Months Ended
	Feb. 28, 2013	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010	Jun. 30, 2005 Calavo Growers Incorporated [Member]	Oct. 31, 2013 Calavo Growers Incorporated [Member]	Oct. 31, 2012 Calavo Growers Incorporated [Member]	Oct. 31, 2011 Calavo Growers Incorporated [Member]	Oct. 31, 2009 Calavo Growers Incorporated [Member]	Apr. 10, 2013 Calavo Growers Incorporated [Member]
Schedule of Available-for-sale Securities [Line Items]
Calavo's common stock, shares owned						1,000,000	500,000
Ownership percentage of common stock						6.90%	3.20%
Equity in investments		$ 1,800,000	$ 8,947,000	$ 8,896,000	$ 9,057,000	$ 10,000,000
Issuance of common stock, shares	2,070,000					1,728,570
Ownership percentage sold to Calavo						15.10%
Issuance of common stock		51,857,000				23,450,000
Net cash consideration received from stock purchase agreement						13,450,000
Calavo stock sold, shares							165,000			335,000
Calavo stock sold, value										6,079,000
Gain recognized on sale of Calavo stock							3,138,000			2,729,000
Available-for-sale securities total unrealized holding gains (losses), pre tax							795,000	692,000	445,000
Available-for-sale securities total unrealized holding gains (losses), net of tax							479,000	417,000	267,000
Net proceeds from sale of stock in Calavo Growers, Inc.							$ 4,788,000
Price per share							$ 29.69	$ 23.61			$ 29.02