Note 1 - Business Activities and Summary of Significant Accounting Policies (Details Textual) - USD ($)	12 Months Ended
Oct. 31, 2020	Oct. 31, 2019	Nov. 01, 2019
Amortization of Intangible Assets, Total	$ 692,000	$ 275,000
Advertising Expense	295,000	422,000
Research and Development Expense, Total	1,989,000	1,468,000
Share-based Payment Arrangement, Noncash Expense, Total	$ 556,000	$ 317,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	402,838	124,097
Operating Lease, Right-of-Use Asset	$ 1,421,000
Operating Lease, Liability, Total	1,509,000
Accounting Standards Update 2016-02 [Member]
Operating Lease, Right-of-Use Asset			$ 2,300,000
Operating Lease, Liability, Total			$ 2,400,000
Trademarks [Member]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 0	$ 0
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years
Weighted Average [Member]
Finite-Lived Intangible Asset, Useful Life (Year)	8 years 142 days

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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