8. Income Taxes: Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($)	Oct. 31, 2019	Oct. 31, 2018
Details
Deferred Tax Assets, Tax Credit Carryforwards	$ 3,758,000	$ 3,037,000
Deferred Tax Assets, Deferred Income	92,000	84,000
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts	43,000	41,000
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	205,000	171,000
Deferred Tax Assets, Other	81,000	104,000
Deferred Rent	29,000	37,000
Deferred Interest	97,000	0
Depreciation	(427,000)	(402,000)
Deferred Tax Assets, Gross	3,878,000	3,072,000
Deferred Tax Assets, Valuation Allowance	(3,878,000)	(3,072,000)
Deferred Tax Assets, Net of Valuation Allowance	$ 0	$ 0