9. Stock-Based Compensation: Schedule of Share-Based Compensation Expense (Details) - USD ($)	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Stock-based compensation	$ 466,997	$ 612,715
Cost of Sales
Stock-based compensation	11,000	17,000
Research and Development Expense {1}
Stock-based compensation	74,000	110,000
Selling, General and Administrative Expenses
Stock-based compensation	$ 382,000	$ 486,000