Restoration provisions (Details) - USD ($)	12 Months Ended
Oct. 31, 2021	Oct. 31, 2020
Changes In Restoration Provisions [Roll Forward]
Restoration provisions, beginning balance	$ 321,400
Restoration provisions, ending balance	$ 334,233	$ 321,400
Risk-free interest rate	0.61%
Restoration provisions
Changes In Restoration Provisions [Roll Forward]
Restoration provisions, beginning balance	$ 321,400	0
Initial recognition		321,400
Interest Recognized	3,194	0
Foreign exchange recognized	9,639
Restoration provisions, ending balance	$ 334,233	$ 321,400

The increase (decrease) in other provisions. [Refer: Other provisions]

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- Definition

The increase (decrease) in other provisions resulting from foreign currency exchange rate changes on provisions measured in a currency different from the entity's presentation currency. [Refer: Other provisions]

+ References

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The increase in other provisions through adjustments arising from the passage of time. [Refer: Other provisions]

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- Definition

The amount of non-current provision for decommissioning, restoration and rehabilitation costs. [Refer: Provision for decommissioning, restoration and rehabilitation costs]

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Changes In Restoration Provisions

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Non-current Provision For Decommissioning Restoration And Rehabilitation Costs, Risk Free Interest Rate

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