Investment in Calavo Growers, Inc. (Details Textual) - USD ($)	1 Months Ended			12 Months Ended
	Apr. 11, 2013	Feb. 28, 2013	Jun. 30, 2005	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2009
Schedule of Available-for-sale Securities [Line Items]
Stock Issued During Period, Shares, New Issues		2,070,000
Stock Issued During Period, Value, New Issues					$ 518,000	$ 51,857,000
Proceeds from Sale of Available-for-sale Securities, Equity				$ 6,433,000	0	4,788,000
Available-for-sale Securities, Gross Realized Gain (Loss)				5,033,000	0	3,138,000
Calavo Growers, Inc [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Owned, Balance, Shares			1,000,000
Equity Method Investment, Ownership Percentage			6.90%
Payments to Acquire Available-for-sale Securities, Equity			$ 10,000,000
Stock Issued During Period, Shares, New Issues			1,728,570
Percentage Of Ownership Interest Sold			15.10%
Stock Issued During Period, Value, New Issues			$ 23,450,000
Proceeds From Payment For Stock Purchase Agreement			$ 13,450,000
Sale Of Available For Sale Securities Number Of Shares Sold							335,000
Proceeds from Sale of Available-for-sale Securities, Equity	$ 4,788,000					3,098,000	$ 6,079,000
Available-for-sale Securities, Gross Realized Gain (Loss)	$ 3,138,000			5,033,000		1,865,000	$ 2,729,000
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss) before Taxes				487,000	9,425,000	3,893,000
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss), Net of Tax, Total				$ 273,000	$ 5,790,000	$ 2,344,000
Sale of Stock, Number of Shares Issued in Transaction	165,000			140,000
Sale of Stock, Price Per Share	$ 29.02			$ 46.00
Proceeds from Sale of Available-for-sale Securities, Total				$ 6,433,000
Available-for-sale Securities, Total				$ 360,000