9. Stock-Based Compensation: Schedule of Share-based Compensation, Activity (Details) - USD ($)	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
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Stock options outstanding Beginning Balance	1,847,000	1,522,000
Stock options Granted	659,500	542,500
Stock options Exercised	(16,000)	0
Stock options Forfeited	(800,500)	(217,500)
Stock options outstanding Ending Balance	1,690,000	1,847,000	1,522,000
Stock options exercisable	809,000
Weighted Average Exercise Price, Outstanding Beginning Balance	$ 3.20	$ 3.47
Weighted Average Exercise Price, Granted	1.94	1.96
Weighted Average Exercise Price, Exercised	1.45	0.00
Weighted Average Exercise Price, Forfeited	3.14	1.98
Weighted Average Exercise Price, Outstanding Ending Balance	2.77	$ 3.20	$ 3.47
Weighted Average Exercise Price, exercisable	$ 3.34
Option, Outstanding, Weighted Average Remaining Contractual Term	6 years 10 months 25 days	6 years 4 months 24 days	6 years 2 months 12 days
Option, Exercisable, Weighted Average Remaining Contractual Term	4 years 10 months 25 days
Options, Outstanding, Aggregate Intrinsic Value	$ 0	$ 2,200	$ 1,800
Options, Exercisable, Aggregate Intrinsic Value	$ 0