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Summary of Significant Accounting Policies - Schedule of Commodities Held by Broker (Details) - USD ($) | Oct. 31, 2019 | Oct. 31, 2018
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Accounting Policies [Abstract] |  |
Option contracts | $ (58,856) | $ (39,926)
Future contracts | 159,887 | 17,880
Commodities due to broker | $ 101,031 | $ (22,046)

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- Definition Future contracts. + References No definition available. + Details
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- Definition The fair value of the open option contracts written for the investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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