4. Leases: Schedule of Maturities of Contractual Obligations Relating to Operating Leases (Details)	Oct. 31, 2019 USD ($)
Details
Operating Lease Obligations Maturities Repayments Of Principal, Remainder Of Fiscal Year	$ 609,833
Operating Lease Obligations Maturities Repayments Of Principal, In Year Two	437,746
Operating Lease Obligations Maturities Repayments Of Principal, In Year Three	308,520
Operating Lease Obligations Maturities Repayments Of Principal, In Year Four	195,183
Operating Lease Obligations Maturities Repayments Of Principal, In Year Five	0
Operating Lease Obligations Maturities Repayments Of Principal, Thereafter	0
Operating Lease Obligations Maturities Repayments Of Principal	$ 1,551,282

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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No definition available.