Investment's share price.

No definition available.

Name:	cvgw_InvestmentSharePrice
Namespace Prefix:	cvgw_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of equity securities sold during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	cvgw_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117546-209714

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Balance held at close of period in number of shares.

+ References

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+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The difference between the carrying value and the sale price of an investment. A loss would be recognized when the sale price of the investment is less than the carrying value of the investment. This element refers to the Loss included in earnings and not to the cash proceeds of the sale.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Topic 220
-SubTopic 10
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Period Type:

Description of the business (Details) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
	Jul. 31, 2019 USD ($) $ / shares shares	Jul. 31, 2019 USD ($) segment $ / shares shares	Apr. 30, 2019 $ / shares	Nov. 01, 2018 USD ($)	Oct. 31, 2018 $ / shares
Number of reportable segments \| segment		3
Limoneira
Sale of securities \| shares		51,271
Loss on sale of investments		$ 0.1
Realized gain (loss)	$ (5.1)	$ (8.2)
Investment share price (in dollars per share) \| $ / shares	$ 19.79	$ 19.79	$ 22.84		$ 24.65
Investment shares held (in shares) \| shares	1,677,299	1,677,299
ASU 2016-01
Increase to equity				$ 12.1