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Commodities Held by Broker - Schedule of Commodities Held by Broker (Details) - USD ($)	Jan. 31, 2018	Oct. 31, 2017
Commodities Held By Broker
Option Contracts	$ (21,232)	$ 166,945
Future Contracts	(73,762)	(377,807)
Total Commodities	$ (94,994)	$ (210,862)

X

- Definition

Total Commodities.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

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- References

No definition available.

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- Definition

Future Contracts.

+ References

No definition available.

+ Details

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Namespace Prefix:	JVA_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

The fair value of the open option contracts written for the investment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-12B.4,Column E)
-URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611197-123010

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