8. Income Taxes: Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)	Oct. 31, 2021	Oct. 31, 2020
Details
Deferred Tax Assets, Tax Credit Carryforwards	$ 6,387,000	$ 6,356,000
Deferred Tax Assets, Deferred Income	35,000	72,000
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts	47,000	251,000
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	242,000	228,000
Deferred Tax Assets, Other	70,000	53,000
ROU lease liabilities	107,000	116,000
Foreign tax credit	32,000	32,000
Depreciation	28,000	7,000
Total gross deferred tax asset	6,948,000	7,115,000
Less: Valuation allowance	(6,862,000)	(7,054,000)
Total net deferred tax asset	86,000	61,000
ROU lease assets	(86,000)	(61,000)
Total deferred tax liability	(86,000)	(61,000)
Deferred tax assets and liabilities	$ 0	$ 0