Commodities Held by Broker - Schedule of Realized and Unrealized Gains and Losses on Contracts (Details) - USD ($)	3 Months Ended	6 Months Ended
Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
Brokers and Dealers [Abstract]
Gross realized gains	$ 241,125	$ 485,344	$ 503,112	$ 841,903
Gross realized losses		(668,114)	(76)	(794,925)
Unrealized gain (loss)	144,333	666,901	559,408	(318,936)
Total	$ 385,458	$ 484,131	$ 1,062,444	$ (271,958)

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Amount of increase in the fair value of derivatives recognized in the income statement.

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Amount of decrease in the fair value of derivatives recognized in the income statement.

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Amount of realized and unrealized gain (loss) on investment.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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