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Fair Value Measurements (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Assets at Fair Value:
Unrealized Gain (Loss) on Investments	$ 2,247	$ 6,326	$ 6,621
Limoneira [Member]
Assets at Fair Value:
Limoneira's stock price	$ 24.65	$ 23.35	$ 19.69
Unrealized Gain (Loss) on Investments	$ 1,700	$ 3,900	$ 4,100
Fair Value, Measurements, Recurring [Member]
Assets at Fair Value:
Total assets at fair value	42,609
Fair Value, Measurements, Recurring [Member] | Limoneira [Member]
Assets at Fair Value:
Total assets at fair value	$ 42,609
Percentage of outstanding shares of Limoneira's shares owned	10.00%
Limoneira's stock price	$ 24.65	$ 23.35
Unrealized Gain (Loss) on Investments	$ 2,200	$ 6,300	$ 6,600
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Assets at Fair Value:
Total assets at fair value	42,609
Fair Value, Measurements, Recurring [Member] | Level 1 [Member] | Limoneira [Member]
Assets at Fair Value:
Total assets at fair value	$ 42,609

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of investments, not including unrealized gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, held at each balance sheet date and included in earnings for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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