4. Leases: Schedule of Maturities of Contractual Obligations Relating to Operating Leases (Details)	Jul. 31, 2022 USD ($)
Details
Operating Lease Obligations Maturities Repayments Of Principal, Remainder Of Fiscal Year	$ 28,180
Operating Lease Obligations Maturities Repayments Of Principal, In Year Two	113,495
Operating Lease Obligations Maturities Repayments Of Principal, In Year Three	115,082
Operating Lease Obligations Maturities Repayments Of Principal, In Year Four	96,523
Operating Lease Obligations Maturities Repayments Of Principal, In Year Five	57,806
Operating Lease Obligations Maturities Repayments Of Principal, Thereafter	9,873
Operating Lease Obligations Maturities Repayments Of Principal	$ 420,959

Represents the monetary amount of Operating Lease Obligations Maturities Repayments Of Principal, as of the indicated date.

No definition available.

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Represents the monetary amount of Operating Lease Obligations Maturities Repayments Of Principal, In Year Five, as of the indicated date.

No definition available.

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Represents the monetary amount of Operating Lease Obligations Maturities Repayments Of Principal, In Year Four, as of the indicated date.

No definition available.

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Represents the monetary amount of Operating Lease Obligations Maturities Repayments Of Principal, In Year Three, as of the indicated date.

No definition available.

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Represents the monetary amount of Operating Lease Obligations Maturities Repayments Of Principal, In Year Two, as of the indicated date.

No definition available.

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Represents the monetary amount of Operating Lease Obligations Maturities Repayments Of Principal, Remainder Of Fiscal Year, as of the indicated date.

No definition available.

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Represents the monetary amount of Operating Lease Obligations Maturities Repayments Of Principal, Thereafter, as of the indicated date.

No definition available.

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Data Type:	xbrli:monetaryItemType
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No definition available.